How many grams of fiber should you consume each day. What are the best sources of dietary fiber. Why is fiber crucial for your overall health. What are the differences between soluble and insoluble fiber. How can you increase your daily fiber intake easily.

The Importance of Dietary Fiber: Understanding Its Role in Your Health

Dietary fiber is a crucial component of a healthy diet, yet many people don’t consume enough of it. But what exactly is fiber, and why is it so important? Fiber is a type of carbohydrate that the human body cannot digest. It passes through our digestive system relatively intact, providing numerous health benefits along the way.

There are two main types of fiber: soluble and insoluble. Each plays a unique role in maintaining our health:

• Soluble fiber dissolves in water, forming a gel-like substance. It can help lower blood cholesterol and glucose levels.
• Insoluble fiber doesn’t dissolve in water. It adds bulk to the stool, helping food pass more quickly through the stomach and intestines.

Both types of fiber are essential for optimal health. They work together to promote digestive health, maintain bowel regularity, and support overall well-being.

Recommended Daily Fiber Intake: How Much Do You Really Need?

The American Heart Association recommends consuming 25 to 30 grams of dietary fiber per day from food sources. However, the average adult in the United States only consumes about 15 grams daily, falling short of the recommended amount. But how can you determine if you’re getting enough fiber?

Here’s a breakdown of recommended daily fiber intake based on age and gender:

• Men aged 50 or younger: 38 grams
• Men aged 51 or older: 30 grams
• Women aged 50 or younger: 25 grams
• Women aged 51 or older: 21 grams

It’s important to note that these are general guidelines. Your individual fiber needs may vary depending on your overall health, activity level, and specific dietary requirements.

The Health Benefits of a High-Fiber Diet: Beyond Digestive Health

Incorporating adequate fiber into your diet offers a wide range of health benefits that extend far beyond just maintaining regular bowel movements. Here are some of the key advantages of a high-fiber diet:

1. Heart Health: Soluble fiber can help lower cholesterol levels, reducing the risk of heart disease.
2. Blood Sugar Control: Fiber slows the absorption of sugar, which can help improve blood sugar levels, particularly beneficial for people with diabetes.
3. Weight Management: High-fiber foods tend to be more filling, which can help with weight control by reducing overall calorie intake.
4. Digestive Health: Fiber promotes regular bowel movements and can help prevent constipation and diverticular disease.
5. Cancer Prevention: Some studies suggest that a high-fiber diet may help reduce the risk of colorectal cancer.

Given these numerous health benefits, it’s clear that increasing your fiber intake can significantly impact your overall well-being.

Soluble vs. Insoluble Fiber: Understanding the Difference and Their Unique Benefits

While both soluble and insoluble fiber are essential for health, they work in different ways and offer distinct benefits. Understanding these differences can help you make informed choices about your diet.

Soluble Fiber

Soluble fiber dissolves in water to form a gel-like substance in your gut. This type of fiber is particularly beneficial for:

• Lowering cholesterol levels
• Regulating blood sugar levels
• Promoting feelings of fullness

Good sources of soluble fiber include:

• Oats and oat bran
• Barley
• Nuts and seeds
• Beans and lentils
• Some fruits like apples, citrus fruits, and berries

Insoluble Fiber

Insoluble fiber doesn’t dissolve in water. Instead, it adds bulk to your stool and helps food move through your digestive system. Benefits of insoluble fiber include:

• Preventing constipation
• Promoting regular bowel movements
• Supporting overall digestive health

Good sources of insoluble fiber include:

• Whole grains
• Wheat bran
• Nuts
• Vegetables like cauliflower, green beans, and potatoes
• The skins of some fruits and vegetables

For optimal health, it’s important to include both types of fiber in your diet. Many plant-based foods contain both soluble and insoluble fiber, making it easier to meet your daily requirements.

Top Fiber-Rich Foods: Incorporating More Fiber Into Your Diet

Increasing your fiber intake doesn’t have to be complicated. Many delicious and nutritious foods are naturally high in fiber. Here are some top fiber-rich foods to consider adding to your diet:

Fruits

• Raspberries (8 grams per cup)
• Pears (5.5 grams per medium fruit)
• Apples (4.4 grams per medium fruit)
• Bananas (3.1 grams per medium fruit)

Vegetables

• Artichokes (10.3 grams per medium artichoke)
• Broccoli (5.1 grams per cup)
• Brussels sprouts (4 grams per cup)
• Carrots (3.6 grams per cup)

Legumes

• Split peas (16.3 grams per cup, cooked)
• Lentils (15.6 grams per cup, cooked)
• Black beans (15 grams per cup, cooked)
• Chickpeas (12.5 grams per cup, cooked)

Grains

• Quinoa (5.2 grams per cup, cooked)
• Oatmeal (4 grams per cup, cooked)
• Brown rice (3.5 grams per cup, cooked)
• Whole wheat bread (2 grams per slice)

By incorporating a variety of these foods into your meals and snacks, you can easily boost your fiber intake and reap the associated health benefits.

Practical Tips for Increasing Your Daily Fiber Intake

Boosting your fiber intake doesn’t have to be a daunting task. With a few simple strategies, you can easily increase the amount of fiber in your diet. Here are some practical tips to help you get started:

1. Start your day with a high-fiber breakfast: Choose whole-grain cereals, oatmeal, or add berries to your yogurt.
2. Swap refined grains for whole grains: Choose whole wheat bread, pasta, and brown rice over their refined counterparts.
3. Snack on fruits and vegetables: Keep cut-up veggies and fruits on hand for easy snacking.
4. Add beans to your meals: Incorporate beans into soups, salads, and main dishes.
5. Choose high-fiber snacks: Opt for nuts, seeds, or popcorn instead of chips or crackers.
6. Leave the skin on: When eating fruits and vegetables, leave the skin on when possible, as it often contains a significant amount of fiber.
7. Experiment with new recipes: Try new recipes that incorporate high-fiber ingredients like lentils, chickpeas, or quinoa.

Remember to increase your fiber intake gradually and drink plenty of water. A sudden increase in fiber consumption can lead to digestive discomfort, so it’s best to make changes slowly over time.

Potential Risks and Considerations When Increasing Fiber Intake

While increasing your fiber intake is generally beneficial, there are some potential risks and considerations to keep in mind:

• Digestive Discomfort: A sudden increase in fiber intake can cause bloating, gas, and abdominal discomfort. Increase your fiber intake gradually to allow your digestive system to adjust.
• Decreased Nutrient Absorption: In some cases, a very high fiber intake can interfere with the absorption of certain minerals, such as iron, zinc, and calcium. This is typically only a concern with excessive fiber intake or fiber supplement use.
• Interaction with Medications: Fiber can interact with certain medications, potentially affecting their absorption. If you’re taking any medications, consult with your healthcare provider before significantly increasing your fiber intake.
• Dehydration: As you increase your fiber intake, it’s crucial to also increase your water intake. Fiber absorbs water, and not drinking enough can lead to constipation.

If you have any specific health conditions or concerns, it’s always best to consult with a healthcare professional or registered dietitian before making significant changes to your diet.

The Role of Fiber Supplements: When and How to Use Them Effectively

While it’s generally best to get your fiber from whole food sources, fiber supplements can be a useful tool for some people to meet their daily fiber needs. But when should you consider using fiber supplements, and how can you use them effectively?

When to Consider Fiber Supplements

Fiber supplements may be beneficial in the following situations:

• If you struggle to get enough fiber from your diet alone
• If you have certain digestive issues that could benefit from additional fiber
• If you’re recovering from intestinal surgery or certain digestive tract conditions

Types of Fiber Supplements

There are several types of fiber supplements available:

• Psyllium: A form of soluble fiber that’s effective for treating constipation and diarrhea
• Methylcellulose: A synthetic form of soluble fiber
• Wheat dextrin: A soluble fiber derived from wheat starch
• Inulin: A prebiotic fiber that can promote gut health

Using Fiber Supplements Effectively

If you decide to use fiber supplements, keep these tips in mind:

1. Start slowly: Begin with a small dose and gradually increase it to avoid digestive discomfort.
2. Stay hydrated: Drink plenty of water when taking fiber supplements.
3. Time it right: Take fiber supplements at least two hours before or after other medications to avoid potential interactions.
4. Don’t rely solely on supplements: Continue to eat fiber-rich foods as part of a balanced diet.

Remember, while fiber supplements can be helpful, they don’t provide the same range of nutrients and health benefits as fiber-rich whole foods. Always consult with a healthcare provider before starting any new supplement regimen.

Increasing Fiber Intake | Patient Education

Why is fiber important?

A high-fiber diet appears to reduce the risk of developing various conditions, including heart disease, diabetes, diverticular disease, constipation and colon cancer. Fiber is important for the health of the digestive system and for lowering cholesterol.

What is fiber?

Dietary fiber is material from plant cells that cannot be broken down by enzymes in the human digestive tract. There are two important types of fiber: water-soluble and water insoluble. Each has different properties and characteristics.

• Soluble Water-soluble fibers absorb water during digestion. They increase stool bulk and may decrease blood cholesterol levels. Soluble fiber can be found in fruits (such as apples, oranges and grapefruit), vegetables, legumes (such as dry beans, lentils and peas), barley, oats and oat bran.
• Insoluble Water-insoluble fibers remain unchanged during digestion. They promote normal movement of intestinal contents. Insoluble fiber can be found in fruits with edible peel or seeds, vegetables, whole grain products (such as whole-wheat bread, pasta and crackers), bulgur wheat, stone ground corn meal, cereals, bran, rolled oats, buckwheat and brown rice.

How much fiber do I need each day?

The American Heart Association Eating Plan suggests eating a variety of food fiber sources. Total dietary fiber intake should be 25 to 30 grams a day from food, not supplements. Currently, dietary fiber intakes among adults in the United States average about 15 grams a day. That’s about half the recommended amount.

Continue reading

How do I increase my fiber intake?

Here are some easy ways to increase fiber:

Grains and Cereals

• As a general rule, include at least one serving of whole grain in every meal.
• Keep a jar of oat bran or wheat germ handy. Sprinkle over salad, soup, breakfast cereals and yogurt.
• Use whole-wheat flour when possible in your cooking and baking.
• Choose whole grain bread. Look on the label for breads with the highest amount of fiber per slice.
• Choose cereals with at least 5 grams of fiber per serving.
• Keep whole-wheat crackers on hand for an easy snack.
• Cook with brown rice instead of white rice. If the switch is hard to make, start by mixing them together.

Legumes and Beans

• Add kidney beans, garbanzos or other bean varieties to your salads. Each 1/2 cup
  serving is approximately 7 to 8 grams of fiber.
• Substitute legumes for meat two to three times per week in chili and soups
• Experiment with international dishes (such as Indian or Middle Eastern) that use
  whole grains and legumes as part of the main meal or in salads.

Fruits and Vegetables

• Eat at least five servings of fruits and vegetables each day. Fresh fruit is slightly higher in fiber than canned. Eat the peel whenever possible — it’s easier than peeling or eating around it.
• Have fresh fruit for dessert.
• Eat whole fruits instead of drinking juices. Juices don’t have fiber.
• Add chopped dried fruits to your cookies, muffins, pancakes or breads before baking.
  Dried fruits have a higher amount of fiber than the fresh versions. For example, 1 cup of grapes has 1 gram of fiber, but 1 cup of raisins has 7 grams. However, 1 cup of raisins or any other dried fruit has more calories than the fresh fruit variety.
• Add sliced banana, peach or other fruit to your cereal.
• Grate carrots on salads.

Fiber supplements

To find information on fiber supplements, please see Fiber Supplements.

How much fiber do I get from fruits and vegetables?

While all fruits have some fiber, there are some that are higher than others. Here are a few that have 3 to 4 grams of fiber:

• Apple
• Orange
• Tangerine
• Pear
• 1 cup blueberries
• 1 cup strawberries

Raspberries are high in fiber, as one cup has 8 grams.

Here are some vegetable choices that have 3 to 4 grams of fiber:

• 1/2 cup peas
• 1/2 cup cauliflower
• 1 cup carrots
• 1 medium sweet potato
• 1/2 cup squash

Why is soluble fiber so important?

Soluble fiber has been shown to reduce total blood cholesterol levels and may improve blood sugar levels in people with diabetes.

The best sources of soluble fiber are oats, dried beans and some fruits and vegetables. Although there is no dietary reference intake for insoluble or soluble fiber, many experts recommend a total dietary fiber intake of 25 to 30 grams per day with about one-fourth — 6 to 8 grams per day — coming from soluble fiber.

How Much Fiber Per Day? Grams, Sources, Benefits, and More

How Much Fiber Per Day? Grams, Sources, Benefits, and More

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Medically reviewed by Katherine Marengo LDN, R. D., Nutrition — By Brett Smiley — Updated on May 30, 2023

Guidelines advise different amounts of fiber depending on your age and sex. As you age, your fiber needs may go down.

According to the Food and Drug Administration, the Daily Value for fiber is 28 grams per day for adults on a 2,000-calorie diet. This number may also depend on age or sex.

The USDA’s Dietary Guidelines for Americans suggest the following amounts of fiber:

• Women under 50: 25 to 28 grams per day
• Men under 50: 31 to 34 grams per day
• Women 51 and older: 22 grams per day
• Men 51 and older: 28 grams per day

Children ages 1 to 18 should eat 14 to 31 grams of fiber per day, depending on their age and sex. Even higher fiber intakes, seen in countries around the world, may significantly reduce chronic disease risk.

Fiber does digestive grunt work but doesn’t get the same glamour as vitamin D, calcium, and other nutrients.

It’s important to get the right amount of fiber to keep your digestive system running smoothly. Fiber also provides a lot of health benefits beyond digestion, such as help with weight loss and with balancing gut bacteria.

The average American eats only about 16 grams of fiber per day. That’s quite a bit less than the daily recommended intake for a lot of people. Read on to learn more about the benefits of fiber, where to get fiber, symptoms of consuming too much fiber, and more.

As a whole, fiber delivers a lot of health benefits:

• supports weight loss
• reduces cholesterol and blood sugar levels
• lowers risk of cardiovascular diseases such as stroke, heart disease, and more
• lowers risk of diabetes
• increases digestive and bowel health
• fuels healthy gut bacteria
• may lower risk of colorectal and breast cancer

In general, “dietary fiber” is an umbrella term for the parts of plants and other foods that your body can’t digest. Your body does not break down fiber. Instead, fiber passes through your system and eases symptoms such as constipation.

It’s important to eat a wide variety of foods instead of relying on one source for fiber intake.

The best way to get fiber without consuming too many calories is to eat high fiber foods. Most vegetables, fruits, and other plant-based foods contain fiber.

If your body is slowly adjusting to more fiber, spread out your portions across multiple meals instead of eating a lot in a single serving.

Here are more high fiber foods to try:

Fiber-rich foods	Grams (g) per serving size
split peas, cooked	16.4 g per cup
lentils, cooked	15.6 per cup
black beans, cooked	15.4 per cup
lima beans, cooked	9.2 g per cup
green peas, cooked	8.8 g per cup
raspberries	8 g per cup
cooked barley	6 g per cup
oat bran	6 g per cup
medium pear with skin	5. 6 g per pear
medium apple with skin	4.8 g per apple
bran flakes	5.5 g per 3/4 cup
cooked Brussels sprouts	6.4 g per cup
almonds	3.6 g per 1 oz.
chia seeds	8.4 g per 1 oz. (2 tbsp.)

Looking for how to get your kids to eat more fiber? Check out these 10 high fiber foods your kids will actually eat.

Fiber is a type of carbohydrate that comes in three main forms: soluble, insoluble, and fermented fiber.

• Soluble fiber dissolves in water and slows down digestion. It can help lower your cholesterol and blood sugar levels.
• Insoluble fiber doesn’t dissolve in water and plays a different role in digestion. It adds bulk to stool and passes through your system more quickly. Basically, it helps keep your pipes working regularly and prevents constipation.
• Fermentable fiber can come from either of the previous two categories, although it is more often soluble fiber. Fermented fiber helps increase the healthy bacteria in your colon.

It’s best to gradually add fiber to the diet. You don’t want to shock your system with too much bulk. “Start low, go slow,” as the International Foundation for Functional Gastrointestinal Disorders puts it.

Here are some tips for adding fiber — but not too much:

• Eat whole fruits such as pears and apples instead of drinking fruit juices.
• Opt for whole grain foods instead of white rice, white bread, and white pasta.
• Snack on vegetables instead of pretzels and chips.
• Eat beans and lentils daily.
• Sprinkle chia seeds on cereal, smoothies, or salads.
• Make sure you’re drinking plenty of water when you eat fibrous food.

You may also find it helpful to track the foods you eat and note the fiber content to better understand how much you’re actually eating. Some people who find it hard to eat enough fiber may want to consider taking a fiber supplement.

That said, too much fiber can also be a bad thing. And your body will speak up (literally and figuratively) with a variety of symptoms if you’re eating too much of it. Fiber supplements have also not been found to be nearly as beneficial as eating high fiber foods.

Keep in mind that everyone’s body reacts to fiber a bit differently. Some people with a condition called irritable bowel syndrome may not tolerate fiber well.

Fiber is also known as “bulk” or “roughage,” and it can make some noise as it passes through your stomach and intestines. While there is no daily upper limit for dietary fiber intake, consuming large amounts may cause discomfort and symptoms such as:

• gas
• bloating
• constipation
• diarrhea
• abdominal cramping

Cut back on your fiber intake if you experience these symptoms and feel that they are the result of your diet and not another condition, like the stomach flu, that has similar symptoms.

If you experience severe symptoms, consult your doctor or visit an urgent care center or the hospital. In rare but serious cases, consuming too much fiber can cause an intestinal (bowel) obstruction, which is a blockage that prevents contents from moving through.

Last medically reviewed on April 27, 2023

How we reviewed this article:

Healthline has strict sourcing guidelines and relies on peer-reviewed studies, academic research institutions, and medical associations. We avoid using tertiary references. You can learn more about how we ensure our content is accurate and current by reading our editorial policy.

• Barber TM, et al. (2020). The health benefits of dietary fibre.
  ncbi.nlm.nih.gov/pmc/articles/PMC7589116/
• Collins K. (2017). Do I need a certain type of dietary fiber?
  aicr.org/resources/blog/healthtalk-do-i-need-a-certain-type-of-dietary-fiber/
• Daily Value on the new Nutrition and Supplement Facts labels. (2022).
  fda.gov/food/new-nutrition-facts-label/daily-value-new-nutrition-and-supplement-facts-labels
• Dietary fiber. (2017).
  aboutibs.org/treatment/ibs-diet/dietary-fiber/
• Dietary guidelines for Americans, 2020-2025. (2020).
  dietaryguidelines.gov/sites/default/files/2020-12/Dietary_Guidelines_for_Americans_2020-2025.pdf
• Eating, diet, & nutrition for constipation in children. (2018).
  niddk.nih.gov/health-information/digestive-diseases/constipation-children/eating-diet-nutrition
• Fiber. (n.d.).
  hsph.harvard.edu/nutritionsource/carbohydrates/fiber/
• Fiber: The carb that helps you manage diabetes. (2022).
  cdc.gov/diabetes/library/features/role-of-fiber.html
• Food sources of dietary fiber. (2020).
  dietaryguidelines.gov/resources/2020-2025-dietary-guidelines-online-materials/food-sources-select-nutrients/food-0
• Greger M. (2017). How much fiber should you eat every day?
  nutritionfacts.org/2017/03/14/how-much-fiber-should-you-eat-every-day/
• Lambeau KV, et al. (2017). Fiber supplements and clinically proven health benefits: How to recognize and recommend an effective fiber therapy.
  ncbi.nlm.nih.gov/pmc/articles/PMC5413815/
• McRae M. (2018). The benefits of dietary fiber intake on reducing the risk of cancer: An umbrella review of meta-analyses.
  ncbi.nlm.nih.gov/pmc/articles/PMC6112064/
• Quagliani D, et al. (2017). Closing America’s fiber intake gap: Communication strategies from a Food and Fiber Summit.
  ncbi.nlm.nih.gov/pmc/articles/PMC6124841/
• Weickert MO, et al. (2008). Metabolic effects of dietary fiber consumption and prevention of diabetes.
  academic.oup.com/jn/article/138/3/439/4670214
• Whole grains and fiber. (2021).
  heart.org/en/healthy-living/healthy-eating/eat-smart/nutrition-basics/whole-grains-refined-grains-and-dietary-fiber

Our experts continually monitor the health and wellness space, and we update our articles when new information becomes available.

Current Version

May 30, 2023

Written By

Brett Smiley

Edited By

John Bassham

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Apr 27, 2023

Medically Reviewed By

Katherine Marengo, LDN, RD

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Medically reviewed by Katherine Marengo LDN, R.D., Nutrition — By Brett Smiley — Updated on May 30, 2023

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Fiber. What is it, why is it needed, why and how to eat more

The World Health Organization recommends eating 400 grams (5 servings) of vegetables and fruits per day, that is, 25-30 grams of fiber.

According to statistics, Europeans consume only 50-70% of their daily fiber intake. This is especially affected by the predominance of fast food, processed foods, saturated fats, sugar and animal protein in the diet.

In this article we will tell you what fiber is, what foods contain it and how it affects the body.

Contents:

1. What is fiber
2. How fiber supports microbiota health
3. How to increase fiber in your diet

What is fiber

Fiber is a complex carbohydrate and dietary fiber found in herbal products origin.

Photo by Anna Pelzer / Unsplash

It is not digested by the body, but gut bacteria use it to perform a number of functions.

There are two types of fiber – soluble and insoluble. Almost all plants contain both species, but in different proportions. Both are needed by our body.

Soluble Fiber

Photo by Brenda Godinez / Unsplash

Soluble Fiber when combined with water becomes a viscous gel-like consistency , which helps food pass through the intestines, and also has a positive effect on some indicators in the body.

Blood sugar level

Soluble fiber slows down the absorption of macronutrients from food, especially sugars. In doing so, it helps control blood glucose levels, which is important for people with insulin resistance, type 2 diabetes, or a predisposition to diabetes.

Blood cholesterol levels

Soluble fiber blocks and lowers total dietary cholesterol, including low-density lipoprotein. It helps with heart diseases and reduces the risk of their development.

Bile acids

The body uses cholesterol to make bile acids, which help break down fats and collect metabolic waste. So that bile does not accumulate in the body, soluble fiber blocks it and removes it with the stool.

Appetite and weight

Soluble fiber increases satiety and satisfies hunger for a long time.

Studies show weight loss and improvement in body mass index in overweight and obese patients.

Gut microbiota

Soluble fiber is considered a prebiotic – the main food source for beneficial gut bacteria. They, in turn, break it down and produce short-chain fatty acids.

Microbiota test Atlas will tell you about the ability of the microbiota to break down different types of fiber. You will receive nutritional advice that will help you consume enough fiber for a healthy microbiota.

Insoluble fiber

Insoluble fiber are enzyme-resistant fibers that pass through the body almost unchanged. They help shape feces and nourish intestinal bacteria .

Photo by Tom Hermans / Unsplash

Insoluble fiber stimulates the intestinal wall to secrete mucus, mucin, and fluid. The fibers absorb water to form stool, and the extra mucus helps move it through the intestines and out of the body.

How Fiber Supports a Healthy Microbiota

Getting the right amount of fiber in your diet improves multiple health outcomes through its effects on beneficial gut bacteria.

The effect of dietary fiber on strengthens the immune system, bowel regularity and reduces appetite clinically proven. For example, the fiber inulin promotes the absorption of minerals.

Fiber contributes to the regulation of sugar and cholesterol levels in the blood. This reduces the risk of type 2 diabetes and cardiovascular disease.

Photo by N I F T Y A R T ✍🏻 / Unsplash

In addition, the interaction of fiber and microbes helps control and reduce chronic inflammation, which is associated with many common diseases.

Table with a list of foods rich in fiber and their impact on health indicators

Fiber consumption reduces overall mortality and deaths due to cardiovascular problems by 15-30%.

Is a source for the synthesis of butyric acid

Butyric acid or butyrate is a short-chain fatty acid that protects the intestines from inflammation and maintains the integrity of its walls.

Intestinal bacteria produce butyrate during the fermentation of dietary fiber.

These bacteria include Faecalibacterium prausnitzii, Roseburia, Eubacterium and some others. With a lack of fiber, the production of butyric acid is disrupted, which leads to a weakened immune system and increases the risk of inflammation.

Butyrate-producing bacteria feed on fiber types such as arabinoxylan, inulin, pectin, 𝛃-glucan, polydextrose .

Photo by Estúdio Bloom / Unsplash

These fibers are found in barley, oats, chicory, Jerusalem artichoke, onions, garlic, rye, apples, citrus fruits, berries, whole grains, bran, mushrooms .

Feeds gut bacteria

Prebiotics are types of fibers that feed bacteria and stimulate their growth when ingested.

These types of fiber include:

• beta-glucans,
• galacto-, fructo-, xylo- and arabino-oligosaccharides,
• isomaltose,
• lactulose,
• oligofructose,
• inulin,
• resistant starch.

All of them are found in herbal products .

Photo by S O C I A L . C U T / Unsplash

Clinical studies show that bacteria, like humans, are very picky eaters. Some prefer fiber from legumes, while others prefer fiber from broccoli or oatmeal.

As you can see, we really are what we eat. Did you know that genetic tests even exist for gut bacteria?

Atlas Microbiota Test analyzes bacterial DNA from your stool sample to assess the health of your gut microflora. You can find out which bacteria inhabit your gut, how they break down fiber, and how they protect you from disease.

Personalized nutritional advice to help you adjust your diet to balance bacteria and improve digestion.

With the Atlas Health app, you will always have access to test status and results, as well as the list of Top 10 products for microbiota, which is updated every week, and a smart food diary.

Nourishes Probiotic Bacteria

Beneficial bacteria maintain intestinal acidity, protect against inflammation and pathogens, boost immunity, and even reduce stress levels.

e.g. probiotic bacteria Bifidobacterium produce short chain acids acetate and lactate . These, in turn, are used by bacteria of the species Firmicutes to produce butyric acid butyrate .

Photo by Alexander Sergienko / Unsplash

Members of the community like Akkermansia have other useful qualities. They are present in the intestines of normal weight people and help control gaining and maintaining a healthy body weight.

The more dietary fiber from different sources in your diet, the more beneficial bacteria in your gut.

How to get more fiber in your diet

The British Nutrition, Lifestyle and Medicine Association recommends using the rainbow principle: Eat 9 every day0024 five servings of vegetables and two fruits , each of which must match one of the colors of the rainbow.

It would seem that all that is required is to consume at least 30 grams of fiber from natural products. However, fiber should be added gradually .

Finding the right balance can be difficult at first: many people make the mistake of eating too many leafy vegetables and fruits. However, they forget about the importance of foods such as grains and legumes, which are responsible for the feeling of satiety.

Rapid increases in dietary fiber often cause side effects such as bloating, gas and abdominal pain.

Fill up your diet with fiber-rich foods with our Meal Builder:

🥘 Meal base (choose one or more)

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Whole grains : wheat, rye, barley, oats, quinoa, buckwheat (it can be both grains and flour)
Legumes : beans, lentils, chickpeas
Starch : potatoes (cooked and chilled), green bananas, brown rice

🥬 Additional sources of fiber

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Vegetables : raw, roasted, boiled, stewed, steamed, dried
Fruit : preferably fresh, sometimes dried. Best for breakfast or dessert
Greens : fresh, dried
Mushrooms : don’t forget them too

🥑 Fats

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Olive oil : keep it in moderation
Avocado : delicious and high in fiber, also in moderation
9002 4 Greek Yogurt : Probiotic, great for breakfast or as a dressing

🍋 Condiments and dressings

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Seeds and nuts : prefer raw, they will add a crunchy texture to the dish
Citrus fruits : their juice is good as a dressing
Herbs : rich taste
Spices : depending on the mood
Pepper : black, red, mixed, dried or fresh
9002 4 Sol : the main thing is not salt
Nutritional yeast : adds cheesy flavor and aroma. Best for ready meals

🥚 Proteins

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Red meat, seafood and oily fish : no more than once a week each
White meat and eggs : in moderation
Vegetable protein : legumes, tofu

Learn more about what foods contain fiber in this Atlas blog post.

More Nutrient Articles on the Atlas Blog:

• All You Need to Know About Fat
• Carb Guide
• 13 Essential Vitamins

• ED Jesch & TP Carr, Food Ingredients That Inhibit Cholesterol Absorption, 2017
• SV Thompson et al., Effects of isolated soluble fiber supplementation on body weight, glycemia, and insulinemia in adults with overweight and obesity: a systematic review and meta-analysis of randomized controlled trials, 2017
• J Slavin & H Green, Dietary fiber and satiety, 2007
• D Dhingra et al., Dietary fiber in foods: a review, 2012
• World Gastroenterology Organization, Diet and the gut guidelines, 2018
• Andrew Reynolds et al, Carbohydrate quality and human health: a series of systematic reviews and meta-analyses, 2019
• McRorie, Johnson W. Jr PhD, FACG, AGAF, FACN, Evidence-Based Approach to Fiber Supplements and Clinically Meaningful Health Benefits, Part 2 What to Look for and How to Recommend an Effective Fiber Therapy, 2015
• Max H Pittler, Edzard Ernst, Dietary supplements for body-weight reduction: a systematic review, 2004

7 sources of fiber that are available all year round

Medicine and health

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Fiber is the collective name for long sugars that our body does not break down. But fiber helps in the digestion process: it softens the food bolus and helps it move through the intestines.

Depending on gender and age, people are advised to eat 22 to 34 g of fiber per day, for example, adding vegetables and fruits to the diet. In winter, their availability decreases: some products disappear from the shelves, some become more expensive, but this does not mean that it is impossible to reach the norm. We have prepared a list of high fiber foods that are available all year round.

🌾 Cereals

Adding a serving of grains to every meal with three meals a day, you can provide yourself with almost a third of the fiber you need.

Take half a glass of uncooked cereal for one serving. The amount of fiber depends on what kind of cereal it is:
– oatmeal – from 5 to 8 g;
– bulgur – 4 g;
– quinoa – 3 g;
– Whole Grain Spaghetti – 3g

🌽 Legumes

One serving of legumes for lunch or dinner will provide an additional 13 to 25% of the required fiber.

Take half a glass of cooked or canned beans per serving. Different types of legumes contain different amounts of fiber:
– chickpeas – 8 g;
– lentils – 8 g;
– red beans – 6 g;
– green peas – 4 g

How beans and legumes are digested So for two meals you will get the recommended serving of seeds per day – about 30 g. The amount of fiber in a serving will depend on the type of seeds:
– chia – 4 g;
– pumpkin – 3 g;
– sunflower – 2 g;
– Sesame – 1 g

Important Questions for a Dietitian

🌰 Nuts

A serving of nuts can also be added to other dishes or eaten instead of a snack. The amount of fiber depends on what kind of nuts it is. One serving – a handful, or 40 g – contains:
– almonds – 5 g;
– almonds without shells – 4 g;
– peanuts – 4 g;
– pistachios – 4 g;
– walnut – 3 g.

It is important to consider that nuts are high in fat, which means calories. While these fats are healthy, if you eat too much, you can throw off the healthy balance of nutrients in your diet. It is recommended to eat no more than 160 g of nuts per week

🍇 Berries and dried fruits

When dried and frozen, a lot of fiber is retained in berries and fruits. Such products are a convenient way to get dietary fiber during periods when fresh fruits and vegetables are not available.

Half a glass of fresh or frozen berries can contain as much fiber:
– raspberries – 4 g;
– blackberry – 4 g;
– prunes – 3 g;
– strawberry – 1.5

🥑 Fruit

Fruit can be made into fruit puree, baked or stewed. But most of the fiber is in raw fruits with a peel. For example:
– pear with peel – 5.5 g;
– pear without peel – 3 g;
– apple with peel – 4 g;
– apple without peel – 2 g;
– applesauce – 3 g in 170 g;
– banana – 3 g;
– orange – 3 g

How to choose vegetables, fruits and berries

🍅 Vegetables

Vegetables can be stewed, baked, boiled. But most of the fiber in raw vegetables with a peel.