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Fiber SupplementsHelping You Find the Best
mybest
Fiber SupplementsHelping You Find the Best
  • 10 Best Fiber Supplements  1
  • 10 Best Fiber Supplements  2
  • 10 Best Fiber Supplements  3
  • 10 Best Fiber Supplements  4
  • 10 Best Fiber Supplements  5

10 Best Fiber Supplements

Whether you want to boost your digestive health or manage your blood sugar, a fiber supplement could be just what you need—but with so many options on the market, how do you know which one to choose? To help mybest readers navigate the world of fiber supplements, we consulted with registered dietitian Megan Huff, who’s shared her knowledge of nutrition and digestion to help you make an informed decision about incorporating fiber into your routine.

To narrow your choices, we’ve also rounded up the best-selling fiber supplements from around the internet. While you’ll still want to discuss potential dietary changes with your doctor, you can use our guide to assist you in pinpointing options that may be a right fit for your lifestyle.

Last updated 08/20/2024

Quick List - Top Fiber Supplement

1

The Procter & Gamble Company

MetamucilSugar-Free Orange Smooth Powder
Sugar-Free Orange Smooth Powder

A High-Fiber Powder You Can Mix Into Your Meals

2

The Procter & Gamble Company

MetamucilFiber Gummies
Fiber Gummies

Tasty Plant-Based Gummies With a Prebiotic

3

Church & Dwight Co., Inc.

VitafusionFiber Well Gummy Supplement
Fiber Well Gummy Supplement

Fiber-Rich Gummies in a Variety of Flavors

4

Amazon.com Services LLC

Amazon BasicsFiber Gummies
Fiber Gummies

Nutritious Gummies for Various Dietary Needs

5

The Procter & Gamble Company

MetamucilPsyllium Fiber Capsules
Psyllium Fiber Capsules

Convenient Capsules With Simple Ingredients

Megan Huff
Expert
Registered Dietitian
Megan Huff

Megan is a registered dietitian and gluten-free food influencer (@sayimafoodie) and owns a virtual nutrition private practice–Nutrition by Megan. Currently, she works as a performance nutrition intern at the United States Naval Academy. She has been quoted for her nutrition expertise in numerous media outlets, including Health, Forbes, People, Clean Plates, EatingWell, and Eat This, Not That! Megan earned her undergraduate degree in nutritional sciences and toxicology-dietetics at the University of California, Berkeley.

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Table of Contents

Fiber Supplements Can Improve Your Health

Expert
Expert

Benefits of fiber include easier bowel movements, lower cholesterol, balanced blood sugars, and weight loss.

Fiber Supplements Can Improve Your Health

Dietary fiber, a plant-based component found in fruits, vegetables, whole grains, and legumes, plays a crucial role in digestion. It keeps you feeling full, regulates your digestive system, and promotes healthy gut bacteria. However, many Americans struggle to meet their daily fiber needs through diet alone. 


This is where fiber supplements come in—they can be a convenient and effective way to bridge the gap and unlock many health benefits. Studies have shown that increasing fiber intake can help improve digestion and regularity, reduce the risk of chronic diseases, and manage weight.

Potential Side Effects of Taking Fiber Supplements

Expert
Expert

Adequate fiber intake has many health benefits, but too high a dose can lead to potential side effects such as abdominal pain or dehydration

Potential Side Effects of Taking Fiber Supplements

While fiber supplements offer a wealth of health benefits, they can sometimes cause temporary digestive side effects, especially when you first start taking them. Huff advises managing potential side effects by starting with a lower dose of fiber supplements and gradually increasing it to allow your digestive system time to adjust. Staying hydrated when taking fiber supplements is essential, as fiber will pull water from your gastrointestinal tract.


The best way to address potential side effects is to include your doctor in the conversation. Fiber supplements can help improve your health, but as with any dietary change, involve your doctor in the decision-making process for a truly personalized and safe approach to boosting your fiber intake. Regular check-ins with your doctor can further optimize your progress.

Megan Huff
Registered Dietitian
Megan Huff
Make sure to check with your healthcare provider before taking a fiber supplement, as it may interact with certain medications.

How to Choose Fiber Supplements

With so many different types of fiber supplements available, it can be a challenge to figure out which one is right for you. Here are a few key points to consider when choosing a fiber supplement. From powders to tablets, there's something for everyone.

1

Choose the Right Type of Fiber to Improve Your Digestion and Wellbeing

When it comes to fiber, a one-size-fits-all approach simply doesn't exist. Different types of fiber offer unique benefits for digestion and overall health. Making the right choice can be the key to unlocking a range of improvements, from smoother digestion and gut health to enhanced feelings of fullness and blood sugar management.

Try Soluble Fiber for Improved Digestion, Cholesterol Control, and Weight Management

Expert
Expert

Soluble fiber keeps you full longer, aids in lowering cholesterol, and slows the absorption of sugar into the bloodstream.

Try Soluble Fiber for Improved Digestion, Cholesterol Control, and Weight Management

Soluble fiber is loaded with potential health benefits, including improved digestion and regularity, cholesterol control, and weight management. Common sources of soluble fiber include psyllium husk, methylcellulose, guar gum, and wheat dextrin. Soluble fibers are generally well-tolerated by most people.


Huff points out that psyllium husk, the active ingredient in Metamucil, is a popular source of soluble fiber. It dissolves in water to form a gel-like substance, allowing it to slow digestion and lower cholesterol by binding to it in the digestive system. Soluble fiber also traps sugar molecules, hindering their direct and rapid entry into the bloodstream. This delay results in a gradual absorption of sugar, preventing blood sugar spikes and helping sustain your energy levels throughout the day. 

For a Low-Stress Way to Treat Constipation and Diarrhea, Try Insoluble Fiber

Expert
Expert

Insoluble fiber adds bulk to the stool to help comfortably pass bowel movements.

For a Low-Stress Way to Treat Constipation and Diarrhea, Try Insoluble Fiber

Insoluble fiber can help with constipation, diarrhea, and overall digestive health. Our expert emphasizes that insoluble fiber is a potentially gentler option for those experiencing digestive issues. It works by adding bulk to your stool while absorbing excess water so you can pass it more easily.


Calcium polycarbophil is a unique fiber with both soluble and insoluble properties. This dual action allows it to regulate bowel movements, offering potential relief for constipation and diarrhea. It’s a good option for individuals with difficulty tolerating other types of fiber.

To Improve Gut Bacteria and Blood Sugar Regulation, Try Functional Fiber

Expert
Expert

Certain functional fibers, such as inulin, feed the gut bacteria that aid in digestion and immune support.

To Improve Gut Bacteria and Blood Sugar Regulation, Try Functional Fiber
Functional fibers take center stage in gut health and blood sugar management. Huff mentions the importance of functional fiber in maintaining a healthy digestive biome. Functional fibers offer targeted benefits and basic digestive ease, making them a valuable tool for improving well-being.

Functional fibers often act as prebiotics, which are essentially food for the good bacteria residing in your gut. These beneficial bacteria are crucial in digestion, immune function, and overall health. The two most common functional fibers are inulin and acacia fiber, a newer (and lesser-known) option. By incorporating functional fibers, you can unlock a world of gut health and blood sugar regulation benefits, paving the way for a healthier you.

2

Choose a Fiber That Fits Your Preferences and Lifestyle

The next step is finding the best method for taking fiber supplements. Consider your preferences and lifestyle: do you prefer the convenience of capsules or the ease of mixing a tasteless powder into your morning smoothie? Perhaps chewable tablets or tasty fiber gummies suit your taste buds better.

Capsules and Chewable Tablets Are Quick and Easy to Take

Expert
Expert

I prefer the convenience of swallowing a small capsule, but I advise choosing what works best for you.

Capsules and Chewable Tablets Are Quick and Easy to Take
Capsules and chewable fiber tablets reign supreme for convenience. Whether you're always on the go or simply prefer a no-fuss approach, capsules and chewable tablets offer a pre-measured solution you can seamlessly integrate into your daily routine. You can even take them with other vitamins.

If you have trouble swallowing pills, opt for chewable tablets, which come in various flavors and forms, so it feels less like you're taking a supplement. On the other hand, capsules are more discreet since you can just swallow them. As our expert emphasizes, choosing the form that works best for you will help you adhere to your daily fiber intake goals.

Powders Are a Convenient Alternative to Pills

Expert
Expert

If you're not a fan of swallowing pills, powdered fibers can be added to foods and drinks.

Powders Are a Convenient Alternative to Pills

For those who don't like swallowing or chewing pills, fiber powders offer a versatile, budget-friendly way to boost your fiber intake. They can be easily sprinkled on yogurt, oatmeal, or cereal for a quick and nutritious breakfast. Powders can be incorporated into smoothies or blended into water or juice for a fiber-infused beverage. While they might require a little creativity to integrate seamlessly into your diet, experimentation can be rewarding. Think about adding powders to baked goods like muffins or pancakes, or even explore sprinkling them into soups or stews during cooking.

 
Huff says that while there aren't any health concerns associated with adding fiber to food, it's always a good idea to start slow and pay attention to how it affects your dish's final texture and taste. Some tinkering might be necessary, but you should ensure the fiber is evenly distributed throughout the dish to avoid clumps.

Megan Huff
Registered Dietitian
Megan Huff

Fiber can be safely integrated into your cooking; however, make sure to mix the fiber powder evenly throughout your dish. 

Try Gummies if You Are Not a Fan of Powders or Pills

Expert
Expert

Fiber gummies can be a good alternative for those who dislike other forms of supplements.

Try Gummies if You Are Not a Fan of Powders or Pills

Gummies offer a tasty and convenient solution for those with a sweet tooth or anyone looking for a fiber option the whole family can enjoy. These chewable treats come in enticing flavors, making them a fun and tasty way to sneak in some extra fiber. Children who may be hesitant towards other forms of supplements find gummies appealing.


Adults can also benefit from the ease and deliciousness of gummies, especially those who dislike for those who dislike other forms of supplements. Despite their candy-like appearance, gummies can be an essential way to improve daily fiber intake.


However, remember that gummies often contain added sugars and ingredients like gelatin. Taking gummy supplements could inadvertently add more sugar to your diet. Additionally, vegans and vegetarians may wish to avoid gelatin.  

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The 10 Best Fiber Supplements

After scouring the internet for reviews from discerning shoppers like you, here is our independent ranking of the best fiber supplements:
Popularity
Filter
Products
Image
Click to purchase
Key features
Details
Type of Fiber
Fiber Source
Form
Servings per Container
Fiber per Serving
Serving Size
Third Party Certification
Flavor
1

The Procter & Gamble Company

MetamucilSugar-Free Orange Smooth Powder

The Procter & Gamble Company Sugar-Free Orange Smooth Powder 1

A High-Fiber Powder You Can Mix Into Your Meals

Soluble

Psyllium Husk

Powder

90 Servings

6g

2 Rounded Teaspoons (11.6g)

Orange

2

The Procter & Gamble Company

MetamucilFiber Gummies

The Procter & Gamble Company Fiber Gummies 1

Tasty Plant-Based Gummies With a Prebiotic

Soluble

Chicory Root Fiber (Inulin), Soluble Corn Fiber (Fibersol®)

Gummy

40 Servings

5g

3 Gummies

Orange

3

Church & Dwight Co., Inc.

VitafusionFiber Well Gummy Supplement

Church & Dwight Co., Inc. Fiber Well Gummy Supplement 1

Fiber-Rich Gummies in a Variety of Flavors

Soluble

Polydextrose

Gummy

45 Servings

5g

2 Gummies

Peach, Strawberry, Berry

4

Amazon.com Services LLC

Amazon BasicsFiber Gummies

Amazon.com Services LLC Fiber Gummies 1

Nutritious Gummies for Various Dietary Needs

Soluble

Chicory Root Fiber (Inulin)

Gummy

45 Servings

4g

2 Gummies

Orange, Lemon, Strawberry

5

The Procter & Gamble Company

MetamucilPsyllium Fiber Capsules

The Procter & Gamble Company Psyllium Fiber Capsules 1

Convenient Capsules With Simple Ingredients

Soluble

Psyllium Husk

Capsule

60 Servings

2g

5 Capsules

Unflavored

6

Bayer Corporation/Consumer Care Div.

MiraLAX®MiraFIBER Gummies

Bayer Corporation/Consumer Care Div. MiraFIBER Gummies 1

A High-Fiber Gummy With Added B Vitamins

Soluble

Inulin (As Inulin Syrup and Inulin Powder)

Gummy

18 Servings

8g

4 Gummies

Strawberry, Apple, Grape, Cherry, Orange, Lemon

7

Micro Ingredients

Micro IngredientsOrganic Triple Fiber Powder

Micro Ingredients Organic Triple Fiber Powder 1

Three Fibers Combine for Maximum Effectiveness

Soluble

Chicory Root (Inulin), Acacia, Psyllium Husk

Powder

113 Servings

6g

2 Scoops (Approx. 8g)

Unflavored

8

Viva Naturals

Viva NaturalsOrganic Psyllium Husk Powder

Viva Naturals Organic Psyllium Husk Powder 1

A Versatile Powder With Simple Ingredients

Soluble, Insoluble

Psyllium Husk Powder

Powder

136 Servings

4g

1 tsp (5g)

Unflavored

9

Yerba Prima, Inc.

Yerba PrimaDaily Fiber Caps

Yerba Prima, Inc. Daily Fiber Caps 1

Five Types of Fiber for Superior Health

Soluble, Insoluble

Psyllium, Acacia Gum, Non-GMO Soy Fiber, Gluten-Free Oat Bran, Apple Fiber

Capsule

100 Servings

2.2g

4 Capsules

Unflavored

10

Primal Harvest LLC

Primal HarvestPrimal Prebiotic Fiber

Primal Harvest LLC Primal Prebiotic Fiber 1

Four Types of Fruit Fiber for Healthy Digestion

Soluble, Insoluble

Acacia Gum, Baobab Fruit, Apple, Green Banana

Powder

30 Servings

6.3g

10g

Unflavored

If you don't see the product you're looking for, you can request that it be listed.
No.1

The Procter & Gamble Company
MetamucilSugar-Free Orange Smooth Powder

Sugar-Free Orange Smooth Powder 1
Source:amazon.com
Sugar-Free Orange Smooth Powder 2
Source:amazon.com
Lowest price
$32.98
High Mid
Lowest price
$32.98
High Mid
Type of FiberSoluble
FormPowder
Fiber Source
Psyllium Husk
Third Party Certification
Flavor
Orange

A High-Fiber Powder You Can Mix Into Your Meals

Pros:

  • Psyllium husk, which boasts numerous health benefits
  • Easy to add to food and drinks
  • Sugar-free and gluten-free

Cons:

  • The texture may be unpleasant to some


The Metamucil Sugar-Free Orange Smooth Powder is a soluble fiber supplement sourced from natural psyllium husk, promoting digestive health and regularity. It’s gluten-free and doesn’t contain added sugars, which helps support healthy blood sugar and cholesterol levels. Additionally, psyllium fiber helps control appetite, keeping hunger at bay between meals.

Servings per Container90 Servings
Fiber per Serving6g
Serving Size2 Rounded Teaspoons (11.6g)
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No.2

The Procter & Gamble Company
MetamucilFiber Gummies

Lowest price
$25.68
Mid
Type of FiberSoluble
FormGummy
Fiber Source
Chicory Root Fiber (Inulin), Soluble Corn Fiber (Fibersol®)
Third Party Certification
Flavor
Orange

Tasty Plant-Based Gummies With a Prebiotic

Pros:

  • Tastes good
  • Plant-based ingredients
  • Contains a prebiotic for digestive balance

Cons:

  •  Only one flavor option


Metamucil Fiber Gummies are a delicious way to boost your fiber intake. They have an orange flavor and provide 5 grams of fiber per serving. It’s an easy (and tasty) way to increase your daily fiber. Formulated with plant-based ingredients and a prebiotic, these gummies support digestive health while nourishing your good gut bacteria. One full serving is three gummies, but it’s best to start with one per day and gradually increase the amount. 

Servings per Container40 Servings
Fiber per Serving5g
Serving Size3 Gummies
No.3

Church & Dwight Co., Inc.
VitafusionFiber Well Gummy Supplement

Lowest price
$12.48
Type of FiberSoluble
FormGummy
Fiber Source
Polydextrose
Third Party Certification
Flavor
Peach, Strawberry, Berry

Fiber-Rich Gummies in a Variety of Flavors

Pros:

  • Three flavors: peach, strawberry, and blackberry
  • Each serving contains 5g of prebiotic fiber

Cons:
  • Sugar alcohol may cause digestive discomfort for some


The Vitafusion Fiber Well Gummy Supplements are a tasty alternative to standard pills. They come in peach, strawberry, and blackberry. Each 2-gummy serving offers 5 grams of prebiotic fiber to promote a balanced, healthy gut. They’re sugar-free, gluten-free, and contain no synthetic FD&C dyes.

Servings per Container45 Servings
Fiber per Serving5g
Serving Size2 Gummies
No.4

Amazon.com Services LLC
Amazon BasicsFiber Gummies

Fiber Gummies 1
Source:amazon.com
Fiber Gummies 2
Source:amazon.com
Fiber Gummies 3
Source:amazon.com
Fiber Gummies 4
Source:amazon.com
Lowest price
$10.39
Type of FiberSoluble
FormGummy
Fiber Source
Chicory Root Fiber (Inulin)
Third Party Certification
Flavor
Orange, Lemon, Strawberry

Nutritious Gummies for Various Dietary Needs

Pros:

  • A variety of flavors: orange, lemon, and strawberry

  • Formulated without gluten, soy, dairy, and egg

Cons:

  • Exposure to heat during delivery may cause the product to melt


The Amazon Basics Fiber Gummies come in orange, lemon, and strawberry flavors. Formulated for adults, they cater to various dietary needs as they’re free of gluten, dairy, soy, and egg. One serving of two gummies per day is all you need.
Servings per Container45 Servings
Fiber per Serving4g
Serving Size2 Gummies
No.5

The Procter & Gamble Company
MetamucilPsyllium Fiber Capsules

Lowest price
$27.95
Type of FiberSoluble
FormCapsule
Fiber Source
Psyllium Husk
Third Party Certification
Flavor
Unflavored

Convenient Capsules With Simple Ingredients

Pros:

  • Capsules are easy to swallow 

  • Made with two ingredients (psyllium husk and gelatin)

Cons:

  • Recommended serving is five capsules per day


The Metamucil Psyllium Fiber Capsules are easy to swallow and easy to take on the go. They’re sugar-free and made with only two ingredients: psyllium husk and gelatin. In addition to your digestive health, these capsules will help support healthy blood sugar and cholesterol levels. 

Servings per Container60 Servings
Fiber per Serving2g
Serving Size5 Capsules
No.6

Bayer Corporation/Consumer Care Div.
MiraLAX®MiraFIBER Gummies

Reference price
$16.99
Low Mid
Type of FiberSoluble
FormGummy
Fiber Source
Inulin (As Inulin Syrup and Inulin Powder)
Third Party Certification
Flavor
Strawberry, Apple, Grape, Cherry, Orange, Lemon

A High-Fiber Gummy With Added B Vitamins

Pros:

  • High fiber content per serving

  • Enriched with B vitamins

  • Six flavor options

Cons:

  • Contains added sugar


MiraLAX MiraFIBER Gummies are a daily prebiotic fiber supplement that comes in six flavors: grape, strawberry, apple, cherry, orange, and lemon. Each gummy has 8 grams of daily fiber per serving, and taking the recommended four gummies a day will supplement over 25% of your recommended daily fiber intake. They’re also enriched with B vitamins (B3, B5, B6, and B12) to support the metabolism of fats, carbohydrates, and proteins.

Servings per Container18 Servings
Fiber per Serving8g
Serving Size4 Gummies
No.7

Micro Ingredients
Micro IngredientsOrganic Triple Fiber Powder

Reference price
$34.95
High Mid
Type of FiberSoluble
FormPowder
Fiber Source
Chicory Root (Inulin), Acacia, Psyllium Husk
Third Party Certification
Flavor
Unflavored

Three Fibers Combine for Maximum Effectiveness

Pros:

  • A blend of three fibers

  • Non-GMO and organic

  • Includes a measuring scoop

Cons:

  • Some may find unflavored powder less palatable


The Micro Ingredients Organic Triple Fiber Powder blends chicory root inulin fiber, acacia fiber, and psyllium husk fiber. It’s vegan-friendly and made without soy, dairy, gluten, fillers, preservatives, tree nuts, or GMOs. You can mix this flavorless powder into water, juice, and smoothies.

Servings per Container113 Servings
Fiber per Serving6g
Serving Size2 Scoops (Approx. 8g)
No.8

Viva Naturals
Viva NaturalsOrganic Psyllium Husk Powder

Lowest price
$20.55
Mid
Type of FiberSoluble, Insoluble
FormPowder
Fiber Source
Psyllium Husk Powder
Third Party Certification
Flavor
Unflavored

A Versatile Powder With Simple Ingredients

Pros:

  • Only one ingredient
  • Suitable for various diets 
  • Organic, non-GMO

Cons:

  • It’s flavorless, which may be unappealing to some


The Viva Naturals Organic Psyllium Husk Powder is a finely ground psyllium husk powder that seamlessly mixes into liquids or baked goods. You can add it to smoothies, juice, baked goods, soups, and more. Plus, it’s gluten-free and certified vegan, kosher, paleo, and keto.

Servings per Container136 Servings
Fiber per Serving4g
Serving Size1 tsp (5g)
No.9

Yerba Prima, Inc.
Yerba PrimaDaily Fiber Caps

Lowest price
$29.95
High Mid
Type of FiberSoluble, Insoluble
FormCapsule
Fiber Source
Psyllium, Acacia Gum, Non-GMO Soy Fiber, Gluten-Free Oat Bran, Apple Fiber
Third Party Certification
Flavor
Unflavored

Five Types of Fiber for Superior Health

Pros:

  • Five different types of fiber

  • Non-GMO, gluten-free, and keto-friendly

  • Also for children (over 12 years old)

Cons:

  • Some may find unflavored capsules less palatable

The Yerba Prima Daily Fiber Caps contain psyllium husks, acacia gum, soy fiber, oat bran, and apple fiber. It has soluble fiber to support friendly bacteria in the colon and soften stools and insoluble fiber to absorb toxins and support a healthy intestinal tract. These capsules are also non-GMO, gluten-free, and keto-friendly.

Servings per Container100 Servings
Fiber per Serving2.2g
Serving Size4 Capsules
No.10

Primal Harvest LLC
Primal HarvestPrimal Prebiotic Fiber

Reference price
$39.95
High
Type of FiberSoluble, Insoluble
FormPowder
Fiber Source
Acacia Gum, Baobab Fruit, Apple, Green Banana
Third Party Certification
Flavor
Unflavored

Four Types of Fruit Fiber for Healthy Digestion

Pros:

  • Contains four different types of fiber

  • Also has polyphenols as “prebiotic boosters”

  • Manufactured in the USA under strict quality standards

Cons:
  • Higher price compared to other fiber supplements


Primal Harvest Primal Prebiotic Fiber is a low-net carb, high-fiber powder mix made from real fruit fiber, antioxidant-rich polyphenols, and both soluble and insoluble fiber. It’s FODMAP-friendly, gluten-free, and GMO-free. It’s made in the USA and undergoes rigorous lab testing at multiple stages to ensure authenticity, purity, and the absence of contaminants.

Servings per Container30 Servings
Fiber per Serving6.3g
Serving Size10g

Top 5 Fiber Supplement

No. 1: The Procter & Gamble CompanyMetamucilSugar-Free Orange Smooth Powder

No. 2: The Procter & Gamble CompanyMetamucilFiber Gummies

No. 3: Church & Dwight Co., Inc.VitafusionFiber Well Gummy Supplement

No. 4: Amazon.com Services LLCAmazon BasicsFiber Gummies

No. 5: The Procter & Gamble CompanyMetamucilPsyllium Fiber Capsules

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