Tea allergy

Answer:

There is very little information related to tea allergy secondary to ingestion. There are papers describing inhalational asthma due to dust from tea leaves (1,2). Tea is derived from the plant Camellia sinensis with the leaves utilized to prepare the tea beverage by warm to boiling water extraction. The mixture is complex with catechins being associated with immunologic responses. Unfermented tea (green) has a greater concentration of catechins and fermented, black tea the least. However, individuals with green tea allergy are reported to have positive skin test reaction to black tea (4). The predictive value of tests for specific-IgE are not confirmed. Testing was performed using 1 mg/ml to 1 ng/ml of tea extract powder (prepared by boiling tea leaves and then evaporating the liquid). The authors report a black tea ‘extract’ prepared by placing 1 gm of tea (presumed to be dried leaves) in 20 ml of normal saline for 30 minutes and then filtering with 0. 45 um filter. It is not stated if the saline and tea leaves were room temperature or heated, although the same paper describes making various tea extract powders by boiling tea leaves in water, not saline, for 5 minutes and the ‘air drying’ to a powder. The powders were used to prepare the skin test concentrations at 1 mg/ml to 1 ng/ml. Both percutaneous and intradermal testing was performed. The threshold concentration that resulted in a positive skin test among the 3 patients reported ranged from 0.1 ug/ml to 10 ug/ml. However, the concentration of the oolong (black tea) used for testing was not clear to me.

I do not think a baseline tryptase would be necessary without a history of other reactions, although some might recommend. I do not think there is any relationship with the problems associated with tea ingestion and the COVID-19 vaccination.

There is a question in the archives of ATE discussing chamomile tea allergy, but this is not likely related to black tea.

In summary, the predictive value of allergy testing with tea is not known. The concentrations used for testing relied upon creating a powder, by evaporating the water used for extraction, and then resuspending the powder at concentrations ranging from 1 mg/ml to 1 ng/ml, with the threshold dose for a positive test reported to be 0.1-10 ug/ml. Another option would be to prepare tea with 1 gm of leaves, 20 ml of saline, filtering and testing with 1:1000 dilution to full strength by percutaneous method. Finally, Dr. Lieberman suggested a prick-to-prick test using wet tea leaves (see ATE question from archives below). I would not recommend intradermal testing, but others might consider. The risk/benefit of all of this is not clear to me and will require challenge regardless of findings. Thus, I would favor an open challenge without testing. I would start at 1:100,000-1,000,000 dilution of tea prepared as usual and increase 10-fold to full strength at 15-20 minute intervals. I would use a volume of 5 ml. If no reaction after full strength, I suggest ad lib drinking under observation.

A documented shared-decision making discussion would be necessary since there is risk in this process. There also may be variability in different tea preparations, so I am not confident you could be assured of safety of all future tea ingestion, black or otherwise.

1. Shirai, Toshihiro, et al. “Food allergy to green tea.” Journal of allergy and clinical immunology 112.4 (2003): 805.

2. Shirai, Toshihiro, et al. “Epigallocatechin gallate-induced histamine release in patients with green tea-induced asthma.” Annals of Allergy, Asthma & Immunology 79.1 (1997): 65-69.

3. Uragoda CG. Tea maker’s asthma. Br J Ind Med 1970;27:181-2.

4. Shirai, Toshihiro, Atsuhiko Sato, and Yukihiko Hara. “Epigallocatechin gallate: the major causative agent of green tea-induced asthma.” Chest 106.6 (1994): 1801-1805.

I hope this information is of help to you and your practice.

All my best.

Dennis K. Ledford, MD, FAAAAI

2/2/2010: Anaphylactic reaction to tea?

A 40 year-old old patient with sensation of pharyngeal swelling and tachycardia within minutes of drinking tea. Patient known to have anaphylaxis with citrus so she thought there must have been a contamination with lemon juice. However, she recently drank black tea without lemon and no herbs that she knew of and developed hives, nausea, diarrhea, pharyngeal swelling, tachycardia and altered sensorium. She had great response to Benaadryl and to Epi times two. Patient has many pollen allergies as well. She also gets oral swelling and itch with mango ingestion. Is there much data on allergy to tea leaves? Any botanical cross reactivity?

Answer: Unfortunately I was unable to find, via a literature search, any documented anaphylactic reactions to black tea. The only anaphylactic reactions to tea that I could find were to camomile tea. A number of these have been reported not only by ingestion but also via enema. I have copied below a few abstracts for your information.

In the meantime, even though I could not find anaphylactic reactions to any other form of tea leaves other than camomile, it is certainly conceivable that your patient could have reacted to the tea. One thing you might consider doing is a prick-to-prick skin test to wet tea leaves, if you wish to document that the tea was the culprit. If you wanted to dilute the agent prior to doing a direct prick-to-prick test, you could soak the tea and then use the liquid tea itself. I would also advise, since the tea had been heated, to heat the tea and then let it cool prior to testing.

I do not know of any antigenic cross reactivity between tea and mango. Should you decide to test this patient, we would greatly appreciate a follow-up for our readers.

Abstract 1:
Allergol Int. 2009 Mar;58(1):135-6. Epub 2008 Dec 1.

Anaphylactic reaction to camomile tea.

Andres C, Chen WC, Ollert M, Mempel M, Darsow U, Ring J.

Department of Dermatology and Allergy, Technical University, Munich, Germany.

BACKGROUND: A type-IV-allergic reaction to German camomile (Matricaria chamomilla) in a form of allergic contact dermatitis is not unusual. However, only a few cases of anaphylactic reaction to camomile have been described in the literature. CASE SUMMARY: We present the case of a 38-year-old Caucasian man who developed an episode of severe anaphylaxis with generalized urticaria, angioedema and severe dyspnoea one hour after consuming camomile tea. Laboratory examination demonstrated a total serum IgE of 123 kU/l with specific IgE against camomile (4.94 kU/l, class 3). Skin prick test and labial provocation test with camomile showed a strong positive reaction. DISCUSSION: Our case confirms the presence of a type-I allergy to orally ingested camomile and indicates that the incidence and risk may be underestimated. Additional response to mugwort and pollen-derived food allergens should be evaluated in patients sensitised to camomile due to a higher incidence of allergic cross-reactivity.

Abstract 2:
Anaphylaxis to camomile: clinical features and allergen cross-reactivity.

Reider N, Sepp N, Fritsch P, Weinlich G, Jensen-Jarolim E.

Department of Dermatology, University of Innsbruck, Anichstrasse 35, 6020 Innsbruck, Austria.

BACKGROUND: Medicinal remedies of plant origin became very popular in recent years, and allergic reactions to these are on the rise, accordingly. Camomile has been reported as a potential trigger of severe anaphylaxis. The allergens responsible for camomile allergy have not been characterized as yet. OBJECTIVE: The present study aims at reviewing the clinical symptomatology of immediate-type reactions in a series of patients sensitized to camomile and at characterizing the responsible allergens. METHODS: Fourteen patients with a history of allergy either to camomile or to spices or weeds, and a positive skin prick test/RAST to camomile were investigated for related allergic reactions to food, pollen and others. IgE-binding patterns were determined by immunoblotting, inhibition tests and deglycosylation experiments. RESULTS: Ten of 14 patients had a clinical history of immediate-type reactions to camomile, in some cases life threatening. Eleven subjects were also sensitized to mugwort in prick or RAST, eight to birch tree pollen. Using a polyclonal rabbit anti-Bet v 1 antibody, a homologue of the major birch pollen allergen Bet v 1 was detected in two camomile blots. In four cases a group of higher molecular weight allergens (23-50 kDa) showed IgE-binding to camomile. All allergens proved heat stable. Binding was inhibited in variable degrees by extracts from celery roots, anize seeds and pollen from mugwort, birch and timothy grass. Deglycosylation experiments proved the presence of carbohydrate determinants in camomile which were not responsible for IgE-binding, though. Profilins (Bet v 2) were not detected in our camomile extracts. CONCLUSION: Incidence and risk of type I allergy to camomile may be underestimated. Concurrent sensitization to mugwort and birch pollen is not infrequent. Bet v 1 and noncarbohydrate higher molecular weight proteins were found to be eliciting allergens and are responsible for cross-reactivity with other foods and pollen.

Abstract 3:
J Allergy Clin Immunol. 1989 Sep;84(3):353-8.

Anaphylactic reaction after the ingestion of chamomile tea: a study of cross-reactivity with other composite pollens.

Subiza J, Subiza JL, Hinojosa M, Garcia R, Jerez M, Valdivieso R, Subiza E.

Centro de Alergia e Inmunologic Cl?nica, General Pardi?as, Madrid, Spain.

We report a case of an 8-year-old atopic boy in whom ingestion of a chamomile-tea infusion precipitated a severe anaphylactic reaction. The patient suffers from hay fever and bronchial asthma caused by a variety of pollens (grass, olive, and mugwort). This severe reaction was developed after his first ingestion of chamomile tea. Studies revealed the presence of immediate skin test reactivity and a positive passive transfer test to chamomile-tea extract. Moreover, both specific antichamomile-tea extract and anti-Matricaria chamomilla-pollen extract IgE antibodies were detected by an ELISA technique. Cross-reactivity among chamomile-tea extract and the pollens of Matricaria chamomilla, Ambrosia trifida (giant ragweed), and Artemisia vulgaris (mugwort), was demonstrated by an ELISA-inhibition study. These findings suggest a type I IgE-mediated immunologic mechanism as being responsible for the patient’s anaphylactic symptoms and also suggest that the patient cross-reacted the pollens of Matricaria chamomilla contained in the chamomile tea because he was previously sensitized to Artemisia pollen.

Sincerely,

Phil Lieberman, M.D.

Green tea allergy

I’ve always been very allergic.
Dust and pollen makes me sneeze, have a stuffy nose, and itchy eyes.

Two common medications: aspirin and ibuprofen, make my eyes swollen. As if that wasn’t enough, I also have gluten intolerance.

I take antihistamines (which give relief to allergy symptoms) about 3 times per week.

According to the AAFA (Asthma and Allergy Foundation of America) “Any food can cause an allergic reaction, but only eight foods cause nine out of ten reactions. They are milk, soy, eggs, wheat, peanuts, tree nuts, fish and shellfish. ”

Green tea allergy

I drink green tea daily and have no problems whatsoever. I had never heard about anyone being allergic to green tea. However, one day while I was at an online forum someone stated that he had a green tea allergy.

I decided to do more research and turns out that it does exist. I even found cases in Japan. Green tea allergy is quite rare, though.

The likely culprits

Two components in green tea seem to be the general cause of an allergic reaction: caffeine and tannin. The specific symptoms vary from person to person. They include nausea, stomach pain, diarrhea, rash and dizziness, among others.

Some people are unaware of the fact that green tea has caffeine. Matcha (especially koicha) has a high caffeine content, as much as a cup of coffee. Houjicha, on the other hand, is probably the Japanese green tea with the least caffeine.

Tannins are polyphenols founds in plants. Catechins are a sub-group of tannins. You’ll find tannins in products in various products such as wine, chocolate, most legumes, some types of nuts, pomegranates, most berries and tea.

Keep in mind that all teas are made with the same plant (Camellia sinensis), so that if you find that you are allergic to one type of tea, then you’re allergic to all of them! In the rare case that you are actually allergic to green tea, be aware that some products contain green tea extract.

Allergies due to a green tea product in Japan

A famous case of allergy outbreak in Japan happened with Cha no shizuku (茶のしずく, a drop of tea), a green tea soap with all-natural ingredients. Hundreds of people throughout Japan claimed to have had an allergic reaction to this soap. A few of them had to be hospitalized!

The cause was later found to be hydrolyzed wheat protein. Apparently, repeated exposure for a long time ended up triggering an allergic reaction. By the way, this compound is also found in some cosmetics in the US. If you have a gluten allergy, stay away from such products.

Additives in tea bags?

I recently drank a green tea from a tea bag, it was very cheap, but I can’t recall the brand since it was written in Chinese. 5 minutes later I had an allergic reaction to it, I felt a pain in my chest that lasted for about 10 minutes.

I drink loose leaf green tea every day and I’ve never had a problem, so I suspect that there is something else in those tea bags besides the green tea. I suggest that you drink loose leaf tea whenever possible, and only from trusted vendors.

Green Tea Allergy Symptoms | Livestrong.com

A green tea allergy can lead to anpahylactic shock.

Image Credit: karandaev/iStock/GettyImages

Everywhere you turn, you see green tea in different forms, all hailed for providing health benefits — not only tea bags but also green tea extract capsules and topical products. These are great if you respond well to green tea, but what if you have a green tea allergy?

Only a doctor or health care provider can determine whether you have an actual green tea allergy, but there are symptoms you can look out for. The good news is that being allergic to green tea is not common. Green tea might even be good for relieving symptoms of other allergies.

Read more: 5 Unexpected Benefits of Drinking Matcha Tea

A Green Tea Allergy

Awareness of allergic reactions to green tea rose after a study published in October 2003 in the Journal of Allergy and Clinical Immunology looked at 11 patients who worked at a Japanese green tea factory and developed nasal and asthmatic allergic reactions between 1984 and 2001. Their symptoms included cough, dyspnea (difficulty breathing) and loss of consciousness (in severe cases).

In some, but not all, of the workers, symptoms also manifested after ingestion of any type of tea (green tea, oolong tea or black tea) or after they ate cakes or noodles made with green tea powder. Skin tests and inhalation challenges confirmed the patients developed asthma that was induced by green tea inhalation or ingestion.

However, many of the patients showing allergic reactions to green tea had consumed green tea in the past without an allergic reaction. This green tea allergy, therefore, might have been caused by inhalation of green tea dust while on the job.

But in other cases, green tea might be helpful in fighting allergies. Specifically, green tea might help itchy skin. In a study published in June 2012 in Toxicology Research, a small group of 10 healthy volunteers were tested for how green tea, when used topically, could affect their allergic contact dermatitis, a common skin disorder where contact with certain chemicals, including those in cosmetics, hair dyes, hand washes and so forth, causes an allergic reaction.

Throughout the test period, green tea did not irritate the skin of the test subjects; more importantly, it had a positive effect in managing their allergic reactions. However, it did not seem strong enough to control moderate or severe reactions, so you might not be able to count on green tea for itchy skin as a complete cure.

The study concluded that green tea was safe both in cosmetics and in medicinal applications; therefore, you at least can rest assured green tea won’t make itchy skin any worse.

Green Tea’s Other Health Benefits

It’s not merely in topical use that green tea has benefit in fighting allergies. AARP recommends green tea, specifically a type called Benifuuki, as a method to offset such symptoms as stuffy nose and itchy eyes.

Additionally, the University of Rochester Medical Center explains that green tea has more polyphenols and antioxidative properties than black and oolong tea, and it may reduce the risk of some cancers. And green tea’s bad side effects are very minimal. Because it does have small amounts of caffeine, excess consumption can lead to anxiety, tremors, irritability and sleeping problems.

More benefits to green tea are continually being discovered. The National Center for Complementary and Integrative Health (NCCIH) notes that it is funding research on green tea’s ability to combat iron overload disease and to help people who are HIV positive.

Other green tea bad side effects might include liver problems caused by green tea extracts sold in capsules, according to both the National Center for Complementary and Integrative Health and the University of Rochester Medical Center. NCCIH lists symptoms of liver problems as abdominal pain, dark urine and jaundice.

Read more: 5 Steps to Brewing Your Healthiest Cup of Tea

So unless you have a green tea allergy, you can — for the most part — expect green tea to be good for you and offer many health benefits. If you find green tea has bad side effects for you, talk to your health care provider about your symptoms.

Green Tea May Fight Allergies — ScienceDaily

Allergy sufferers may want to add green tea to their sniffle-fighting arsenal. New evidence suggests that drinking the popular brew may provide some relief. Researchers in Japan identified a compound in green tea that, in laboratory tests, blocks a key cell receptor involved in producing an allergic response. The compound, methylated epigallocatechin gallate (EGCG), may have a similar effect in humans, they say. Their study will be described in the Oct. 9 print issue of the Journal of Agricultural and Food Chemistry, a peer-reviewed publication of the American Chemical Society, the world’s largest scientific society.

Although similar compounds in green tea have previously been shown to be anti-allergenic, this particular compound appears to be the most potent, the researchers say.

“Green tea appears to be a promising source for effective anti-allergenic agents,” says Hirofumi Tachibana, the study’s chief investigator and an associate professor of chemistry at Kyushu University in Fukuoka, Japan. “If you have allergies, you should consider drinking it.”

For years, people have been drinking tea to fight the sneezing, coughing and watery eyes that are characteristic of colds and allergies. The new study adds to a small but growing body of scientific evidence from both cell and animal studies that it may actually work, particularly green tea.

No one has proven, however, that anti-allergenic compounds found thus far have an actual therapeutic effect in humans who ingest green tea. If it works, the brew may be useful against a wide range of allergens, including pollen, dust, pet dander and certain chemicals, Tachibana says. Further studies are needed.

EGCG is one of the most abundant and biologically active antioxidants found in tea. It is believed to be responsible for tea’s beneficial health effects. The compound is found in higher concentrations in green tea, the least processed of teas, than in black and oolong varieties.

Previous studies have shown that EGCG fights allergic reactions in rodents that were given the compound orally, but researchers are just beginning to understand how it might work.

It now appears that the compound works by blocking the production of histamine and immunoglobulin E (IgE), two compounds in the body that are chiefly involved in triggering and sustaining allergic reactions, Tachibana says.

The current study shows, for the first time, that a methylated form of EGCG can block the IgE receptor, which is a key receptor involved in an allergic response. The effect was demonstrated using human basophils, which are blood cells that release histamine.

Methylated EGCG appears to elicit a stronger anti-allergenic response than normal EGCG, making it the strongest anti-allergen compound found in tea, the researchers say.

Although promising against allergies, no one knows how much green tea is needed to have a therapeutic effect, or which green tea varieties work best, the researchers add. They are currently looking for additional anti-allergenic compounds in the tea.

Green tea has been called the second-most consumed beverage in the world, behind water. It is very popular in Japan, and has a growing following in the United States, where black tea is favored. Tachibana’s study adds to an expanding list of the potential health benefits offered by green tea. In addition to allergies, it is reported to fight cancer, cardiovascular disease, arthritis and tooth decay.

Approximately 50 million people in this country suffer from some type of allergy. Until studies are done to determine whether green tea is actually beneficial to humans with allergies, experts urge consumers to see their doctor for the best advise on treatment options. Among those options: minimizing or avoiding suspected allergens (i.e. dust, pollen, certain foods). Exercise and proper diets are also thought to alleviate the effect of allergies.

Funding for this study was provided in part by grants from the Program for Promotion of Basic Research Activities for Innovative Biosciences (PROBRAIN).

Dr. Tachibana’s associates in this study were Yoshinori Fujimura and Koji Yamada of Kyushi University, Mari Maeda-Yamamoto of the National Research Institute of Vegetables and Tea Sciences, and Toshio Miyase and Mitsuaki Sano of the University of Shizuoka.

Hirofumi Tachibana, Ph.D., is an associate professor of chemistry in the department of bioscience and biotechnology at Kyushu University in Fukuoka, Japan.

Green Tea for Allergies: What Does the Science Say?

For as long as people have suffered from allergies, they have been looking for ways to alleviate the symptoms of them. In recent years, green tea for allergies has caught on because of a study published in 2002. That study suggested that one of green tea’s main antioxidants, EGCG, could help fight allergy symptoms. But does drinking a cup of tea really have the potential to help relieve your allergies?

  What the Study Found

The 2002 study built on previous work that had shown EGCG’s ability to relieve some allergy symptoms in mice. In those previous studies, the compound had been administered and results were observed, but no mechanism was found. The more specific 2002 study, performed at Japan’s Kyushu University, discovered why allergic reactions in mice appeared to improve after EGCG was administered. What it found is that the compound inhibited the production of chemicals in the body that are responsible for starting and continuing allergic reactions. With these chemicals blocked, reactions were eliminated or reduced.

  So, is Green Tea for Allergies a Real Solution?

Needless to say, the discovery that green tea has a real effect on allergies is exciting. The problem, however, is that there’s no good research on the effect of EGCG in human allergies. Though it’s very likely that it has a similar effect, no one knows how much tea you’d have to drink to achieve real results.

Overall, the answer to whether or not tea can help with allergies is “maybe.” Since it has no calories and offers a wide range of proven health benefits, there’s nothing at all wrong with drinking a cup or two of piping hot green tea the next time you’re suffering from seasonal allergies. To be safe, though, you should also be using an air purifier, which can keep allergies at bay all year long. A high-quality HEPA air purifier provides proven, reliable protection from allergens of all sorts in your home air.

Have questions about what an air purifier can do for your health? Feel free to contact us directly for answers and personalized product recommendations.

Possible Green Tea Allergy 🙁

I have heard of this, but I don’t think I have it. I do have trouble drinking green tea, especially matcha — it tends to make me nauseous for hours at a time. I actually did a thread like this about a week ago when I first signed up here. I’m not sure why this happens. I didn’t expect it because I’ve been a black tea drinker all my life, and I tolerate that very well.

I don’t think you’ll be totally missing out on the tea experience — there are so many other things to try. Also, I don’t like green tea that much, but that’s just me.

I did get the free samplers from Den’s Tea and Yunomi, and I’m planning to try some of what they sent just to be sure. They just arrived yesterday, and I’ve got so many other things that I really like right now that I haven’t been able to make myself open any of them yet. I’m gonna try the hojicha first, I think, because it’s roasted, and I’m wondering if my issue is with the Japanese steaming method — I think maybe I just have trouble digesting it.

If you really like the taste of green tea, maybe you could try some lightly oxidized green-ish oolongs to see if you can tolerate those better? Although… I’ve been told that people who have trouble with green tea may also have issues with the greener oolongs and even white teas. But who knows how you’ll respond to it?

But one other thing… If green tea is making you experience serious allergy symptoms like throat closing up, I’d be careful about consuming anymore unless I had an EpiPen on hand.

I have heard of this, but I don’t think I have it. I do have trouble drinking green tea, especially matcha — it tends to make me nauseous for hours at a time. I actually did a thread like this about a week ago when I first signed up here. I’m not sure why this happens. I didn’t expect it because I’ve been a black tea drinker all my life, and I tolerate that very well.

I don’t think you’ll be totally missing out on the tea experience — there are so many other things to try. Also, I don’t like green tea that much, but that’s just me.

I did get the free samplers from Den’s Tea and Yunomi, and I’m planning to try some of what they sent just to be sure. They just arrived yesterday, and I’ve got so many other things that I really like right now that I haven’t been able to make myself open any of them yet. I’m gonna try the hojicha first, I think, because it’s roasted, and I’m wondering if my issue is with the Japanese steaming method — I think maybe I just have trouble digesting it.

If you really like the taste of green tea, maybe you could try some lightly oxidized green-ish oolongs to see if you can tolerate those better? Although… I’ve been told that people who have trouble with green tea may also have issues with the greener oolongs and even white teas. But who knows how you’ll respond to it?

But one other thing… If green tea is making you experience serious allergy symptoms like throat closing up, I’d be careful about consuming anymore unless I had an EpiPen on hand.

I don’t think it can be an allergy or you would get the same reaction from black tea. It could be a sensitivity to matcha. There is a big difference and it is much less serious.

+1. I’m thinking if it was an allergy, it would be to the camellia sinensis plant as a whole, and therefore you wouldn’t be able to drink black tea without the symptoms. It could be psychosomatic?

If you did think it was an allergy, unlikely because it would be to camellia sinensis as a whole as Nattie says, you could go and get tested by an allergist. An allergist could also probably diagnose a food sensitivity.

Here’s my usual answer, though I have no allergies so I can’t help there. Green tea often makes me nauseous. Green oolongs and whites also do the same quite often. I think it is entirely possible to have one type of tea bother you and not another, but I don’t think that makes it an allergy. There’s also a long step from nausea to breathing problems, etc.

Green Tea Allergy – Symptoms, Reactions & Relief [Is It Good Or Harmful?]

Food allergies are quite common. A lot of people all over the world suffer from allergic reactions when they consume specific kinds of food products.

And, when it comes to green tea, it provides a great relief to allergies. But, did you know that you can still be allergic to green tea? Yes, that’s true!

This is one reason why you should be careful while drinking the beverage for the first time.

Before getting into the food allergies caused by green tea, let’s have a look at the reason why people are allergic to certain foods.

What Causes an Allergic Reaction?

Allergic reactions are the way your body reacts when an ‘invader or foreign substance’ enters the system. That invader, referred to as an allergen, can be anything like dust, plants, pollen, medicines, and food.

Most often they are quite minor but in certain rare cases, they can even be life-threatening.

Allergic reactions are basically due to the immune system that kick-starts a set of reactions upon being exposed to a foreign body. Moreover, they are not the same for everyone.

The reaction may be immediate for some and for others it can take hours or even days to appear.

Green Tea Allergy

Studies indicate that green tea can fight the allergic reaction caused due to allergens like dust, pollen, chemicals, and animal dander.

Green tea helps in inhibiting the chemical production that takes place in the body when there is an allergic reaction.

The catechin EGCG present in green tea blocks histamine and immunoglobulin which are the two chemicals responsible for triggering these reactions.

They cause symptoms like sneezing, itching, redness, and the like.

Methylated EGCG has an even more powerful response to allergy than normal EGCG that is there in green tea.

Those who suffer from any kind of food allergy will get relief from the symptoms by drinking green tea.

One tea variety cultivated in Japan, ‘Benifuuki tea’ has a high content of methylated catechins and epigallocatechin gallate (EGCG) and is, therefore, the best way to minimize the symptoms of an allergy.

While this may sound intriguing, consuming green tea does cause allergy to some individuals.

You are likely to get a rash on the skin associated with swelling, itchiness, and redness after drinking green tea. Those who have a hypersensitive skin have more chances of suffering from this kind of allergy.

The reaction can be quite serious at times with bumps, blisters, or boils. There can also be peeling, scaling, and discharge of fluid.

Green tea naturally has caffeine and tannins in it. Both these compounds can be the cause of an allergy.

In case you are sensitive to caffeine or tannin, it is better to steer clear of green tea altogether.

Additionally, if you are allergic to green tea, you will be allergic to other varieties as well. This is because, be it black tea, green tea, white tea, or oolong tea, all the true teas are made from the tea plant Camellia Sinensis.

It also means that you would be allergic to any food product that contains tea in any form.  You must, therefore, carefully read the list of ingredients of food products and make sure that they are free of tea.

Green Tea Allergy Symptoms

The symptoms of green tea allergy can be anything from skin rashes to something as severe as eczema and hives. Eczema is a skin condition in which there is hypersensitivity.

Hives are itchy, bumpy, and red-colored swellings on the skin. They can be formed almost instantaneously and take a while to get alright.

In addition to all this, some individuals may feel a tingling sensation on their face, lips, tongue, or throat.  There can be itching, swelling, and even blisters on the skin.

Moreover, there can be severe reactions too such as scaling and peeling of the skin in addition to fluid discharge as mentioned already.

What should you do when you have an allergic reaction?

If you notice any signs of green tea allergy mentioned above, stop drinking green tea right away. It is highly recommended that you consult a doctor and follow the prescriptions to ease the symptoms.

In the future, you should avoid consuming green tea in any form. It’s absolutely okay if the tea is not for you.

Allergen f222 – tea, IgE (ImmunoCAP)

Quantification of specific class E immunoglobulins in the blood to the leaf tea allergen – f222.

Synonyms Russian

Specific class E immunoglobulins for tea.

Synonyms English

ImmunoCAP f222 – leaf tea, Camellia sinensis.

Research method

Solid phase immunofluorescence (ImmunoCAP).

Units

kU / l (kilo unit of allergen per liter).

What biomaterial can be used for research?

Venous or capillary blood.

How to properly prepare for the study?

• Do not smoke for 30 minutes prior to examination.

General information about the study

An allergic reaction when drinking tea is caused by an allergen – protein f222.This protein belongs to any leaf tea – both black and green. However, often an allergic reaction can be caused by various additives and flavors, rather than the tea leaf itself. Many types of tea contain many dyes, flavors, etc. If herbs are included in the tea mixture, they can also cause an allergic reaction. The biologically active substances in them can cause food intolerances. There may also be an individual intolerance to the chemicals that make up tea, a genetic predisposition to this food allergy and diseases of the digestive system, in which tea drinking has a negative effect. Sometimes the symptoms in such cases are very similar to an allergic reaction and can be easily confused.

Tea allergies can be expressed in different ways. It can be a rash on the body, severe itching and sharp pain in the head area, cough, burning in the eyes, watery eyes, as well as nausea, weakness, burning in the mouth and nasal mucosa. In severe cases, an attack of suffocation is possible. Sometimes the first symptoms appear after a week, but there are times when the reaction occurs instantly.

The purpose of this study is the determination of specific IgE to tea allergens by the ImmunoCAP method, which is characterized by high accuracy and specificity.Diagnostics using ImmunoCAP, based on the immunofluorescence method, is recommended by the WHO and the World Organization of Allergists as the “gold standard” for determining the concentration of IgE antibodies.

What is the research used for?

• Diagnosis of tea allergy;
• Differential diagnosis of the causes of food allergies, as well as the development of allergic diseases and their exacerbations in children and adults.

When is the study scheduled?

• If you suspect a sensitization to tea;
• in case of allergic symptoms after drinking tea, which are manifested by urticaria, angioedema, headache, gastrointestinal disorders.

What do the results mean?

Reference values: 0.00 – 0.35 kU / l.

Reasons for increased result:

• tea sensitization.

Reasons for a negative result:

• lack of sensitization to this allergen;
• long-term limitation or exclusion of contact with an allergen.

Important notes

• This study is safe for the patient compared to skin tests (in vivo), as it excludes patient contact with the allergen.Taking antihistamines and age-related features do not affect the quality and accuracy of the study.

Also recommended

+ determination of specific immunoglobulins of class E to other allergens

Who orders the study?

Allergist, gastroenterologist, dermatologist, pediatrician, therapist, general practitioner.

Literature

• Pediatric Allergy: Principles and Practice, 18, 167-176.
• Henry’s Clinical Diagnosis and Management by Laboratory Methods, Chapter 55, 1057-1070.
• Nelson Textbook of Pediatrics, Chapter 146, 1121-1124.
• Pollen – Food Syndrome. Antonella Muraro and Cristiana Alonzi. Food Allergy, Chapter 7, 83-98.
• www.phadia.com. ImmunoCAP-Allergens.

Tea allergy: how it occurs and what to do to avoid it

Tea allergies are extremely rare.And most often it affects the people who collect and process it.

Black, green fruit, herbal … What could be nicer or healthier?

In Japan and China, even tea ceremonies are held to calm the nerves and find harmony with the world. Tea drinking has become an invariable evening tradition in the UK. And in our country, tea and dessert generally end every meal.

Origin of tea

The most common tea plant Camellia sinensis belongs to the family Theaceae . It is an evergreen tropical shrub or tree with a height of 2 to 10 meters.

It has been cultivated for more than 5,000 years, since the reign of the Chinese emperor Shen Nung.

The flowers of this plant are white and fragrant, and the leaves are dark green with jagged edges. It is from them that all types of drinks, best known as tea, are made.

Specialized herbal and fruit teas are prepared from other plants. Or they add impurities in the form of other plants and fruits to black or green.

There are about a hundred varieties of tea, but they all come from the same species found in 30 countries.

Essentially, all tea plants are the same in that their dry leaves contain 3-6% caffeine. It makes the drink tasty and invigorating.

How do the different types of tea differ?

The biggest difference between the final products is related to the methods of their preparation. It is they who make it possible to obtain four main types of tea.

1. Black tea, the most popular worldwide, is obtained from fermented leaves.It is carried out before heating and drying the deciduous mass. This accelerates the oxidation of polyphenols – substances in green leaves.
2. Green tea is made from withered leaves. This type of tea accounts for only 20% of world consumption.
3. Red oolong tea with a fermentation rate of 30-70% falls between green and black.
4. White tea is the closest to natural tea. Consists of minimally processed leaves. This tea must be brewed in a ceramic vessel with a lid to preserve the aroma.

Medicinal properties of tea

Widely studied and often used in medical practice.

The main active substances in tea are catechins. In green tea, these are epicatechin, epitacatechin-3-gallate, epigaotechin, and epitalologoquin-3-gallate. The latter has the highest concentration.

These substances also have medicinal properties. In particular, epitacatechin-3-gallate is contained in preparations with immunomodulatory effects.

Green tea polyphenols have shown significant antioxidant, anticarcinogenic, anti-inflammatory, thermogenic, probiotic and antimicrobial properties.

Green tea is a good source of fluoride, but reduces the absorption of iron from food.

Tea allergy: symptoms

Until now, scientists have not isolated or characterized any of the plant’s allergens.

It is only known that green tea leaf dust is a trigger of occupational asthma. The disease develops when dust particles are inhaled.

The first reported case of occupational asthma associated with tea was over 30 years ago.

More recent studies have reported occupational asthma when tea dust enters the respiratory tract of workers who are packing tea bags. Those who mixed the tea experienced both acute and chronic symptoms.

A study of the health status of 125 tea factory workers with an average work experience of about 30 years found that 46 of them had chronic respiratory diseases. Chronic bronchitis was observed in 31 people, asthma in eight, and active or inactive pulmonary tuberculosis in seven.

However, there is also a reaction to the use of the drink itself. After drinking tea, food allergy symptoms included coughing, choking, and even fainting.

Such manifestations were observed in a patient after drinking black or green tea, as well as sweets and noodles, which included green tea powder.

Strict elimination of all teas from the diet led to the disappearance of symptoms.

How does tea allergy develop

Like all types of allergies, the reaction to tea involves the triggering of the immune response.This happens when the body mistakenly perceives a substance as something dangerous.

This produces antibodies, or immunoglobulins E (IgE). By interacting with cells of the immune system, they stimulate the release of histamine and other inflammatory mediators that cause allergy symptoms.

In the case of the reaction to tea, this is:

The latter is a potentially life-threatening reaction.

In case of intolerance, IgG-dependent reactions to tea also develop.That is, with them, IgG antibodies are synthesized in the body.

Which components of tea can cause allergies?

Plain (non-herbal) tea contains different amounts of ingredients that can cause allergies. These are caffeine, tannins and theanines.

If you are allergic to caffeine, black tea should be avoided. Green contains more tannins, while white contains more theanines.

How do reactions to tea manifest

Symptoms of tea intolerance or sensitivity include:

• nausea and vomiting,
• diarrhea,
• stomach cramps or pain,
• heartburn,
• swelling,
• irritability.

Manifestations of intolerance, in particular, can cause caffeine. It also causes side effects in those who consume excessive amounts of caffeine from coffee.

Signs of caffeine intolerance:

Tea present in herbal products may increase the risk of bleeding or enhance the effects of anticoagulant therapy (warfarin).

A 44-year-old man who drank more than 4 liters of tea a day had repeated muscle cramps and distal paresthesias in all extremities, a feeling of pressure in the eyes associated with blurred vision, especially in the dark.

Herbal tea allergy

Not all tea drinks are made from Camellia sinens. Many teas are classified as so-called herbal teas. That is, they are not made from tea leaves, but from the leaves, stems and flowers of other plants.

Herbal tea can also contain infusions or decoctions from roots, leaves, stems, fruits, flowers of almost countless plants.

When choosing any herbal tea, be sure to read the ingredient list to avoid substances you are allergic or sensitive to.

Allergies can be caused by teas from plants belonging to certain families.

Aster family

In the clinical practice of Ukrainian allergists, cases of allergy to chamomile tea are known.

It manifests itself as oral allergy syndrome. And it arises from the cross-reactivity of chamomile proteins with ragweed or wormwood allergens.

All three plants belong to the Aster family. Like cornflowers, echinacea, calendula, the petals of which are also often found in herbal teas.Sunflower, caraway and tansy are also related to them.

Therefore, people who are sensitive to ragweed and wormwood pollen are not recommended to use teas that contain these plants. This advice applies to both individual medicinal herbal teas and flower blends that are added to traditional tea leaves.

If you are allergic to these types of teas, you should admire other Aster flowers from afar. Namely:

• astrami,
• daisies,
• marigolds,
• gerberas,
• chrysanthemums.

Mallow family

Hibiscus belongs to the mallow family and can cause allergic reactions in people who are sensitive to proteins from other plants, such as mallow or marshmallow.

Hibiscus also contains tannins, so it can cause a reaction in people who are allergic to this substance.

Fenugreek (hay)

Tea from this plant is called yellow and has many beneficial properties. But it is forbidden to drink it for pregnant women, people with diabetes, asthma and thyroid diseases.

Do not combine fenugreek with plantain and foxglove and consume more than 100 g of this drink per day.

Rosehip, sage, lemon balm tea

There are other herbal teas that can cause allergies. For example, in scientific studies, chronic respiratory symptoms were most often recorded in 100 women who processed tea from rosehip, sage and Georgian herbal infusion.

In another 26 women processing other types of tea, skin tests showed the highest percentage of positive reactions to sage tea, Georgian tea, lemon balm and rosehip collection.

How is tea allergy diagnosed

If you feel unwell when sorting or after drinking any tea, you should consult an allergist. He will diagnose and help you choose a drink that will not cause unpleasant symptoms.

In case of skin manifestations of the disease, diagnosis is carried out using patch testing, but it is not shown to everyone and not always.

Therefore the ALEX2 multicomponent test is the optimal solution.With a single blood draw, it shows sensitivity to nearly 300 allergens, including not only tea, but plant and all inhalation allergy triggers.

With the help of ALEX2, it is possible to determine, in particular, allergies to fenugreek and plants of the Aster family.

There are no contraindications for this test. It can be performed for any disease at a convenient time for the patient.

Diagnosis of tea intolerance

Another modern diagnostic tool that can determine intolerance to tea and other food products is the FOX test.

It determines IgG-dependent hypersensitivity to 286 products. Among them are tea components such as chamomile, hibiscus, jasmine, moringa, peppermint, black and green teas.

What is the best way to deal with tea allergies?

Of course, you can stop drinking tea altogether. However, there are other options

Try a different tea

Choose from an amazing range of both herbal and conventional teas.Chances are, if you are allergic to one type of tea, such as black tea, you can drink another without any problems.

Try switching from herbal tea to traditional tea or vice versa. You can also substitute green tea for black tea.

If caffeine sensitivity is your problem, try white tea.

But it is still better to experiment in this way after allergy diagnostics and consultation with a doctor.

Brewing time

If your sensitivity to tea tannins is not very pronounced, try reducing their concentration in the drink.

The length of time a cup of tea is brewed will affect the amount of allergens it will contain.

Brew a small amount and for a short time to enjoy it without harm to your health.

Select another drink

Some people cannot drink tea at all due to allergies. If you can’t stand most types of tea, try healthy drinks like pomegranate or tomato juice instead.

Conclusions:

Tea allergy is rare, but it does happen.

Classic teas contain caffeine, tannins and other ingredients that can cause allergic reactions.

Herbal teas are made from plant materials, the source of which may belong to families that cause allergic reactions.

Herbal drinks most often associated with allergic reactions are chamomile and rosehip teas.

If you are allergic to one type of tea, another may be suitable for you.

Always check the ingredients on the tea label to determine if any of your allergens are present.

Leaf tea (f222), IgE, ImmunoCAP (Leaf tea, Camellia sinensis, IgE, ImmunoCAP)

Method of determination
Immunofluorescence assay (ImmunoCAP).

Study material
Blood serum

Home visit available

The test is aimed at detecting sensitization to tea allergens.

Tea is one of the most popular drinks, prepared by brewing the leaves of tea bushes and trees (Camellia genus, Tea family). Dried leaves of these plants contain 3-6% caffeine, which is associated with the stimulating effect of tea, epigallocatechin gallate up to 10%, essential oils, pigments, B vitamins, etc. – more than 300 different substances. Black tea is made from leaves that have undergone a preliminary fermentation and drying process, which leads to the oxidation of most of the flavonoids contained in green leaves. Green tea is made primarily from fresh leaves, which prevents the oxidation of polyphenols. The composition of green tea, with minor changes, is similar to that of fresh leaves.

Tea rarely induces food allergy symptoms in sensitized individuals. A more common association with occupational asthma is due to inhalation of tea dust in tea workers. Patients with asthmatic and nasal symptoms after exposure to green tea dust showed reactivity to epigallocatechin gallate.Symptoms of a tea food allergy have been described as coughing, shortness of breath, and, in severe cases, fainting shortly after drinking black or green tea.

Tea allergens not characterized. Epigallocatechin gallate has been reported as a likely causative agent of occupational asthma induced by tea dust in manufacturing workers. It can be assumed that there is cross-reactivity between representatives of the same plant genus.

Tea allergy – TeaTerra

Tea allergy is a type of food allergy. The manifestations of this disease can be very diverse, ranging from cough and lacrimation to anaphylactic shock.

Causes of tea allergy
The reason for tea allergy in most cases is the content of various kinds of synthetic dyes and artificial flavors. This can explain the fact that earlier, when people themselves collected and brewed herbal tea, it was healing and really helped a person. Now, dyes and food additives have firmly entered our life, which give the tea drink a rich color and rich taste.

Symptoms of tea allergy
Unfortunately, this type of allergy is very difficult to recognize due to the fact that many people do not even suspect that the allergy may be to tea. That is why, while taking antiallergic pills, a person does not stop drinking tea. After a while, he realizes that the pills do not help. And, naturally, the doctor is to blame for everything, because he “could not” choose the right medicine. In this, and in any other case, you should contact an allergist for advice and the selection of a specific treatment.

An allergy to tea can be manifested by the fact that the skin begins to itch, rashes can appear. After some time, these signs disappear, but after the next cup of tea they appear again.

In more severe cases, allergies can manifest as cough, perspiration, or spasm of the vocal cords. Some tea allergy sufferers may complain of vomiting, dizziness, or prolonged runny nose and nasal congestion. In general, we can say that the symptoms of tea allergy can be very diverse and in most cases do not have a specific meaning.

The reaction is caused by an individual tea allergen – a specific protein F222. But most often it is caused not directly by the tea leaf, but by the mass of aromatic, flavoring additives, dyes, synthetic fibers that are present in modern teas. In addition, herbs can cause allergies if they are included in the tea. The composition of various herbs includes a huge amount of biologically active substances, trace elements that have a specific effect on the body. When choosing tea, be sure to look at the expiration date.Since expired tea, which has experienced changes in humidity a dozen times, may develop a fungus, which in itself is a strong allergen.

The manifestations of tea allergy can be very different. Typically, tea allergy manifests itself in the form of skin rashes and itching. But reactions such as coughing, watery eyes, headache, nausea, nasal congestion, burning in the nose and mouth, and so on are also possible as the symptoms and consequences worsen, up to attacks of suffocation. Allergies most often occur in those people whose immunity is weakened for any reason.It can manifest itself at any age. The reaction can be slow and develop over several days, but it can be immediate and develop very violently and quickly.

If you have at least one of the signs of allergy, you must stop drinking the drink and contact the nearest pharmacy for an antiallergic agent. After a few hours after taking the medication, you should feel better. If this does not happen, then it is better to seek the help of a doctor, since allergies can provoke serious diseases: bronchial asthma, serum sickness, hemolytic anemia.The most serious manifestation of allergies is anaphylactic shock.

Most often, people do not even suspect that the allergy is caused by tea. They drink drugs and wash them down with tea, which further exacerbates the situation. Treatment does not take place, and this is attributed to the fault of the doctors. In this case, you need to contact an allergist and immunologist, pass a number of tests, choose a specific treatment.

Treatment of tea allergy
Treatment of tea allergy is the same as for any type of allergy.In the complex, antihistamines, strengthening and symptomatic agents should be used. So, with a runny nose and nasal congestion, it is recommended to use vasoconstrictor drops, and in case of a severe allergic reaction, up to glucocorticosteroids.

For the treatment of tea allergy, as for the treatment of any other type of allergy, antihistamines are prescribed (clarotadine, zyrtec, suprastin, teridin, fenistil, cetrin, clemastine, lomilan, pheniramine maleate). One-component drugs are preferred as they have fewer side effects.The most common adverse reactions to antihistamines are drowsiness and delayed response. In complex treatment, in addition to antihistamines, drugs are used to increase immunity and symptomatic agents. For nasal congestion – nasivin, otrivin, vizin and other nasal drops, for tearing – vizin, etc.

Stronger antiallergic agents for especially severe reactions should be prescribed by a doctor. These are hormones, glucocorticosteroids and mast cell stabilizers.

The taste of tea is such that it is very difficult to find a replacement for it. People drink it hot, cold, with or without sugar, strong and weak. However, if you have allergies, the best treatment is to stop drinking the drink completely. It is also advisable to go through special allergy tests, which will help to identify what other types of herbal and other teas can cause the above reaction.

But this does not mean that you will have to forget the taste of tea forever – a person is most prone to allergies during a period when his immunity is weakened. Perhaps, having drunk a course of vitamins, having been on a long-awaited vacation and thus increasing the body’s defenses, you can again enjoy the aroma and taste of your favorite drink.

90,000 articles the benefits and harms of tea

Sun allergy and bloom allergy

What saves you from allergies?

The benefits and harms of green tea on the human body

For a modern person, the phenomenon of allergy is not just familiar, but increasingly becomes a companion in life! The more chemical non-food compounds are used in the production of products, the more different types of allergens appear, and the greater the variety of this disease is diagnosed by doctors.

What saves you from allergies?

It is believed that it is green tea that contains the greatest amount of substances that suppress the negative effects of allergens in the human blood.

Yes, almost any green tea is an excellent anti-allergenic agent, because it contains substances such as catechins.

This fact has been repeatedly proven by scientists. It remains only to understand what is green tea and what will never be.

A scientific study published in the journal Biological Psychology on August 22, 2006 looked at the change in stress response after taking the substance L-theanine, which is found in green tea. Scientists have concluded that oral administration of L-theanine induces an anti-stress effect by inhibiting the activity of cortical neurons. Thus, those who drink green tea have calm nerves and strong immunity.

In Japan, the Tohoku University Department of Social Policy conducted a study of 40,530 Japanese people aged 40 to 79 who had been free of heart disease and cancer since 1994.Study participants who drank 5 or more cups of tea a day (compared to participants who consumed less than one cup of tea a day) had a 16% lower risk of death from common causes and a 26% lower risk of developing cardiovascular disease. This study also states that “if green tea prevents cardiovascular disease and cancer, then green tea consumption is expected to increase life expectancy, as cardiovascular disease and cancer are the two leading causes of death worldwide”

Due to the presence of catechins, tannins, tannins in tea, green tea is able to remove allergens from the blood, accumulated during the use of non-food products.

And already the manifestation of accumulated allergens on the skin in the form of itching and redness, peeling, runny nose, sluggish general condition up to headaches occurs at the time of flowering plants or exposure to the sun. Plants and the sun are not the cause, they only provoke the release of accumulated allergens in the body. Due to the presence of copper in green tea, first of all, there is a decrease in inflammatory processes in the body. Further, tea, due to the presence of catechins, removes allergens, radionuclides, microbes and viruses.

Green tea with a high content of methylated catechins is most effective in this matter. In the body, such a catechin, when it meets an allergenic cell, simply envelops it, forcing it to stop the process of allergenic exposure.

Therefore, the more such green tea is consumed during an exacerbation of an allergy, the faster it will be possible to get rid of negative symptoms.

What is green tea and how to drink it?

Green tea should always be stored at minus.Then its therapeutic effect, as mentioned above, will be exerted on the body.

Do not buy green tea from the shelves – it is straw. And if such tea smells, then flavored straw, which is even worse.

How to drink?

If you bought tea from the refrigerator, you heard its soft, refined aroma of freshness, flowers, fruits. Then store in the refrigerator in a tightly closed bag as well. Brew in a volume of 100 ml of water and drain immediately into a drinking cup.Do not hesitate to drain, this is the whole secret! Fresh green tea and properly stored is brewed at the time of draining, if you insist for at least half a minute, then such tea is not curative for allergy sufferers.

Be healthy!

If you have any questions for me, write to me at https://vk.com/avataraclub_moscow

90,000 How to drink green tea so that it is beneficial, not harmful

Everyone has heard about the benefits of green tea, and it seems straightforwardly that it can help from all troubles and problems – to make one rich, give immortality and endow many talents…

And all this is practically true! Green tea is now everywhere and everywhere! He is advised to drink in order to lose weight, and to reduce stress levels, and to maintain the health of the cardiovascular system, and to increase the efficiency of the brain … They wash their hair so that they are silky and grow faster, rub their face to nourish it vitamins and narrow pores, with it they make masks that rejuvenate the skin! But let’s not turn the article into another glorification of the benefits of green tea, because this time we still want to throw a fly in the ointment into a barrel of green tea with honey, because everything is good, in moderation. Even the most healthy foods can harm the body if you overdo it and consume too much of them, this also applies to magical green tea. What are the possible side effects?

Increases caffeine levels

Green tea also contains caffeine. Yes, not as much as black, and, yes, not as much as coffee, but keep that in mind! Especially if you are allergic to it.An excess of caffeine in the body can lead to headaches, nervousness, irregular heartbeat and sleep disturbances, tremors, irritability, and anxiety. Also, a high caffeine content can lead to calcium absorption problems. If you are very fond of tea and cannot refuse it, try to have more foods containing this element in your diet.

• Tip: To solve this problem, try adding fewer green tea leaves or drinking a second brew instead of the first.

May cause iron deficiency

Studies have shown that consuming large amounts of green tea can affect the absorption of iron in the body. This is due to the tannins present in tea. And then leaning on foods with a high iron content will no longer help, because green tea affects precisely its absorption, and not the amount.

• Tip: Squeeze some lemon into your tea, as vitamin C is known to improve the absorption of iron from food into the body.

May cause stomach problems

Caffeine and tannins in green tea can also cause upset stomach. As well as a burning sensation, pain, constipation and even lead to nausea. Those suffering from ulcers, hyperacidity, or acid reflux should avoid drinking green tea altogether. Studies have shown that tea is a stomach acid stimulant.

• Advice: It is better not to drink green tea on an empty stomach, but try drinking it with milk to reduce the acidic effect.

May cause insomnia

A possible side effect of green tea is insomnia. And yes, we all understand what causes it – caffeine. It can stimulate the body and add energy at the end of the day. Therefore, we advise you to avoid taking green tea, especially before bedtime, if you notice that after it you fall asleep worse.

• Tip: Avoid drinking tea before bed.

May cause dehydration

Although tea is supposedly water with leaves, it can actually cause dehydration because it is a natural diuretic.So you run a lot and really lose a lot of water.

• Tip: Try to drink a glass of water after every cup of tea to maintain your hydration.

May cause skin allergies

Excessive consumption of green tea can lead to skin allergies such as eczema and hives. Eczema is a skin condition in which it becomes hypersensitive. Some people experience tingling sensations on their face, lips, tongue, or throat.In some cases, the skin can react sensitively and the area can quickly turn red and swollen, resulting in terrible itching.

• Advice: if you notice such reactions in yourself, it is better not to drink strong green tea at all

Green tea allergy

The taste of this delicious tea is such that it is quite difficult for him to find a good substitute. Some people drink it hot, very cold, without and with sugar, weak and strong. Tea is deservedly considered one of the most widespread and revered drinks all over the world.Today there is just a huge number of varieties of green tea, which even amaze with the variety of their aromas and tastes. Tea drinking has long been a daily ritual for many families. Only recently, an allergy to this drink has really begun to occur more and more often, since an allergy to food is present in ten percent of the entire population of our planet.

Why doesn’t the body accept green tea?

Several studies carried out by scientists show that it is in green tea that contains a mass of components that actively help the human body to fight a huge list of ailments.These include food allergies. In fact, green tea really helps to normalize such a process as the absorption of food, significantly improves the protective function of the gastrointestinal tract and the whole body. At the same time, many, especially young mothers, note the fact that it is green tea that causes food allergies in them. But how? Indeed, in fact, this contradicts all the useful properties of this drink. Research carried out by specialists shows that all cases of tea allergy usually occur in:

1. Tea, which contains all kinds of additives, for example, flavorings.
2. Low-quality low-quality tea.

The fact is that various additives can really cause severe allergies. That is why it is best to buy green tea exclusively with natural flavors, for example, with jasmine. Know that the cheap green teas sold in bags are killers for your body.

How does this type of allergy manifest itself?

Since an allergy to green tea is manifested differently in each person, an allergic person may experience profuse lacrimation and a runny nose, or develop anaphylactic shock.You should be aware that the reaction can be instantaneous and develop very quickly. But in some people, the manifestations of the disease may be somewhat delayed and develop within two days.

The clinical picture of tea allergy

As practice shows, the symptoms of green tea allergy can be quite different. It all depends on the sensitivity of a particular organism. Usually, an allergic reaction manifests itself in the form of characteristic rashes on the skin, which resemble hives.

General signs are as follows:

• headache;
• severe nausea;
• severe cough;
• profuse lacrimation;
• painful burning sensation in the nose and even in the mouth;
• Persistent nasal congestion.

In a patient, an allergic reaction can turn into an attack of active suffocation. Allergies are most common in people who have problems with the immune system. In very severe cases, such an allergy can manifest itself in the form of a spasm of the vocal cords.Some patients complain of vomiting, constant dizziness and prolonged runny nose.

How is this disease treated?

Treatment for green tea allergy is similar to that prescribed by a doctor for any type of allergy. In the complex, the patient should use good antihistamines, immunity-strengthening agents and symptomatic medications. For example, with a severe runny nose and persistent nasal congestion, doctors recommend the use of natural vasoconstrictor drops, and in case of a dangerous allergic reaction, glucocorticosteroids may be prescribed.

Naturally, tea should be excluded from the diet. And alternative treatment can be reduced only to strengthening your immunity with medicinal herbs. However, before self-medication, you need to discuss this point with your doctor. For example, a tincture of walnut leaves is a very effective remedy for strengthening the body.

Folk recipe:

two tablespoons (tablespoons) of leaves must be poured with boiling water (half a liter). Should be taken 1/4 cup twice a day.

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