10 Best Fiber Supplements
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.
Quick List - Top Fiber Supplement
The Procter & Gamble Company

A High-Fiber Powder You Can Mix into Your Meals
Church & Dwight Co., Inc.

Fiber-Rich Gummies in a Variety of Flavors

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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Fiber Supplements Can Improve Your Health

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

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

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

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.

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.
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

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

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

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

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

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

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.
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

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

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

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

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.

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

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

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.
The 10 Best Fiber Supplements
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 Metamucil|Sugar-Free Orange Smooth Powder | ![]() | 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 Metamucil|Fiber Gummies | ![]() | 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. Vitafusion|Fiber Well Gummy Supplement | ![]() | 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 Basics|Fiber Gummies | ![]() | 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 Metamucil|Psyllium Fiber Capsules | ![]() | Convenient Capsules With Simple Ingredients | Soluble | Psyllium Husk | Capsule | 60 Servings | 2g | 5 Capsules | Unflavored | ||
6 | Bayer Corporation/Consumer Care Div. MiraLAX®|MiraFIBER Gummies | ![]() | 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 Ingredients|Organic Triple Fiber Powder | ![]() | 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 Naturals|Organic Psyllium Husk Powder | ![]() | A Versatile Powder to Suit Most Diets | Soluble, Insoluble | Psyllium Husk Powder | Powder | 136 Servings | 4g | 1 tsp (5g) | Unflavored | ||
9 | Yerba Prima, Inc. Yerba Prima|Daily Fiber Caps | ![]() | 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 Harvest|Primal Prebiotic Fiber | ![]() | Four Types of Fruit Fiber for Healthy Digestion | Soluble, Insoluble | Acacia Gum, Baobab Fruit, Apple, Green Banana | Powder | 30 Servings | 6.3g | 10g | Unflavored | ||
The Procter & Gamble CompanyMetamucil | Sugar-Free Orange Smooth Powder
| Type of Fiber | Soluble |
|---|---|
| Form | Powder |
- Fiber Source
- Psyllium Husk
- Third Party Certification
- Flavor
- Orange
A High-Fiber Powder You Can Mix into Your Meals
What we loved
- Psyllium husk, which boasts numerous health benefits
- Easy to add to food and drinks
- Sugar-free and gluten-free
What we didn't love
- The texture may be unpleasant to some
| Servings per Container | 90 Servings |
|---|---|
| Fiber per Serving | 6g |
| Serving Size | 2 Rounded Teaspoons (11.6g) |
The Procter & Gamble CompanyMetamucil | Fiber Gummies
| Type of Fiber | Soluble |
|---|---|
| Form | Gummy |
- Fiber Source
- Chicory Root Fiber (Inulin), Soluble Corn Fiber (Fibersol®)
- Third Party Certification
- Flavor
- Orange
Tasty Plant-Based Gummies With a Prebiotic
What we loved
- Tastes good
- Plant-based ingredients
- Contains a prebiotic for digestive balance
What we didn't love
- Only one flavor option
| Servings per Container | 40 Servings |
|---|---|
| Fiber per Serving | 5g |
| Serving Size | 3 Gummies |
Church & Dwight Co., Inc.Vitafusion | Fiber Well Gummy Supplement
| Type of Fiber | Soluble |
|---|---|
| Form | Gummy |
- Fiber Source
- Polydextrose
- Third Party Certification
- Flavor
- Peach, Strawberry, Berry
Fiber-Rich Gummies in a Variety of Flavors
What we loved
- Three flavors: peach, strawberry, and blackberry
- Each serving contains 5g of prebiotic fiber
What we didn't love
- Sugar alcohol may cause digestive discomfort for some
| Servings per Container | 45 Servings |
|---|---|
| Fiber per Serving | 5g |
| Serving Size | 2 Gummies |
Amazon.com Services LLCAmazon Basics | Fiber Gummies
| Type of Fiber | Soluble |
|---|---|
| Form | Gummy |
- Fiber Source
- Chicory Root Fiber (Inulin)
- Third Party Certification
- Flavor
- Orange, Lemon, Strawberry
Nutritious Gummies for Various Dietary Needs
What we loved
- A variety of flavors: orange, lemon, and strawberry
- Formulated without gluten, soy, dairy, and egg
What we didn't love
- Exposure to heat during delivery may cause the product to melt
| Servings per Container | 45 Servings |
|---|---|
| Fiber per Serving | 4g |
| Serving Size | 2 Gummies |
The Procter & Gamble CompanyMetamucil | Psyllium Fiber Capsules
| Type of Fiber | Soluble |
|---|---|
| Form | Capsule |
- Fiber Source
- Psyllium Husk
- Third Party Certification
- Flavor
- Unflavored
Convenient Capsules With Simple Ingredients
What we loved
- Capsules are easy to swallow
- Made with two ingredients (psyllium husk and gelatin)
What we didn't love
- Recommended serving is five capsules per day
| Servings per Container | 60 Servings |
|---|---|
| Fiber per Serving | 2g |
| Serving Size | 5 Capsules |
Bayer Corporation/Consumer Care Div.MiraLAX® | MiraFIBER Gummies
| Type of Fiber | Soluble |
|---|---|
| Form | Gummy |
- 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
What we loved
- High fiber content per serving
- Enriched with B vitamins
- Six flavor options
What we didn't love
- Contains added sugar
| Servings per Container | 18 Servings |
|---|---|
| Fiber per Serving | 8g |
| Serving Size | 4 Gummies |
Micro IngredientsMicro Ingredients | Organic Triple Fiber Powder
| Type of Fiber | Soluble |
|---|---|
| Form | Powder |
- Fiber Source
- Chicory Root (Inulin), Acacia, Psyllium Husk
- Third Party Certification
- Flavor
- Unflavored
Three Fibers Combine for Maximum Effectiveness
What we loved
- A blend of three fibers
- Non-GMO and organic
- Includes a measuring scoop
What we didn't love
- Some may find unflavored powder less palatable
| Servings per Container | 113 Servings |
|---|---|
| Fiber per Serving | 6g |
| Serving Size | 2 Scoops (Approx. 8g) |
Viva NaturalsViva Naturals | Organic Psyllium Husk Powder
| Type of Fiber | Soluble, Insoluble |
|---|---|
| Form | Powder |
- Fiber Source
- Psyllium Husk Powder
- Third Party Certification
- Flavor
- Unflavored
A Versatile Powder to Suit Most Diets
What we loved
- Only one ingredient
- Suitable for various diets
- Organic, non-GMO
What we didn't love
- It’s flavorless, which may be unappealing to some
| Servings per Container | 136 Servings |
|---|---|
| Fiber per Serving | 4g |
| Serving Size | 1 tsp (5g) |
Yerba Prima, Inc.Yerba Prima | Daily Fiber Caps
| Type of Fiber | Soluble, Insoluble |
|---|---|
| Form | Capsule |
- 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
What we loved
- Five different types of fiber
- Non-GMO, gluten-free, and keto-friendly
- Also for children (over 12 years old)
What we didn't love
- Some may find unflavored capsules less palatable
| Servings per Container | 100 Servings |
|---|---|
| Fiber per Serving | 2.2g |
| Serving Size | 4 Capsules |
Primal Harvest LLCPrimal Harvest | Primal Prebiotic Fiber
| Type of Fiber | Soluble, Insoluble |
|---|---|
| Form | Powder |
- Fiber Source
- Acacia Gum, Baobab Fruit, Apple, Green Banana
- Third Party Certification
- Flavor
- Unflavored
Four Types of Fruit Fiber for Healthy Digestion
What we loved
- Contains four different types of fiber
- Also has polyphenols as “prebiotic boosters”
- Manufactured in the USA under strict quality standards
What we didn't love
- Higher price compared to other fiber supplements
| Servings per Container | 30 Servings |
|---|---|
| Fiber per Serving | 6.3g |
| Serving Size | 10g |
Top 5 Fiber Supplement
No. 1: The Procter & Gamble Company|Metamucil|Sugar-Free Orange Smooth Powder
No. 2: The Procter & Gamble Company|Metamucil|Fiber Gummies
No. 3: Church & Dwight Co., Inc.|Vitafusion|Fiber Well Gummy Supplement
No. 4: Amazon.com Services LLC|Amazon Basics|Fiber Gummies
No. 5: The Procter & Gamble Company|Metamucil|Psyllium Fiber Capsules
View Full RankingThe descriptions of each product are referenced from content available on manufacturer, brand, and e-commerce sites.