Fiber Supplements

Fiber plays an important role in your digestive tract.  Research shows it can help you loose weight, control blood sugar, and improve the gut microbiota.  We often don’t get enough from our diet and need to supplement.  Fiber can come in different forms, you’ll be sure to find the one that works for you below.

Best Fiber Supplements

Sale#1 Real Supplements Rated Best in 2020
Metamucil Fiber, 300 Count, 3-in-1 Psyllium Husk Capsules Supplement, Natural Digestive Health
481 Reviews
Metamucil Fiber, 300 Count, 3-in-1 Psyllium Husk Capsules Supplement, Natural Digestive Health
  • FEEL WHAT LIGHTER FEELS LIKE by trapping and removing the waste that weighs you down by making Metamucil a part of your daily fiber routine.
  • TRAPS AND REMOVES THE WASTE THAT WEIGHS YOU DOWN. Metamucil works by helping you feel lighter and more energetic
  • SUPPORTS HEALTHY BLOOD SUGAR LEVELS. Taking Metamucil every day helps you maintain healthy blood sugar levels
  • PROMOTES HEART HEALTH BY LOWERING CHOLESTEROL. Taking Metamucil every day helps you lower your cholesterol
  • EASY TO TAKE IN ANY SITUATION. Metamucil’s simple sugar free capsules are easy to take on the go. Uses - adults 12 years and over
Sale#2 Real Supplements Rated Best in 2020
Kirkland Signature OPTIFIBER, 26.8 oz
593 Reviews
Kirkland Signature OPTIFIBER, 26.8 oz
  • Natural Fiber Supplement; no flavor; no sugar; no lactose; no artificial coloring
  • Completely Dissolves in Water
  • Non-Thickening, no Grit
  • 190 Servings
#3 Real Supplements Rated Best in 2020
Pure for Men - The Original Vegan Cleanliness Fiber Supplement - Proven Proprietary Formula (120 Capsules with Aloe)
1,164 Reviews
Pure for Men - The Original Vegan Cleanliness Fiber Supplement - Proven Proprietary Formula (120 Capsules with Aloe)
  • FOR GOOD TIMES AND GOOD HEALTH: Our specially formulated all-natural fiber blend works with your body’s natural process to promote gut health and cleanliness. Stay ready to feel cleaner and more confident with Pure for Men.
  • PROMOTES DIGESTIVE CLEANLINESS: When taken with water, the specially formulated psyllium husk, chia seed, and flax seed work together to hydrate and build a soft but solid mass. It works much like a sponge cleaning up behind your meals.
  • PROPRIETARY BLEND OF FIBER: Unlike other fiber supplements, our proprietary blend is designed to reduce common side effects such as bloating, nausea, cramps, and gassiness. Our leading fiber supplement also has 50% more fiber per capsule than competitors.
  • 100% VEGAN FRIENDLY: Pure for Men is completely plant based. Our vegetarian capsules are made from cellulose. No gelatin or animal byproduct is used in the manufacturing.
  • SATISFACTION GUARANTEE: If you’re not satisfied with your purchase within 60 days, we’ll refund your money with no questions asked. We’re so confident in the quality of our product that your satisfaction is our number one priority.
#4 Real Supplements Rated Best in 2020
Garden of Life Raw Organic Superfood Fiber for Constipation Relief, 1.77 lbs (803g) Powder
779 Reviews
Garden of Life Raw Organic Superfood Fiber for Constipation Relief, 1.77 lbs (803g) Powder
  • VEGAN FIBER: Our RAW fiber contains 9g of fiber per serving (36% DV) along with 7 grams of protein, probiotics, and omega 3 fatty acids for overall health
  • SUPERFOOD FIBER: RAW fiber is made with 15 RAW organic superfoods, including sprouted seeds, grains and legumes. Keto Certified and Paleo Friendly
  • CONSTIPATION RELIEF: Supports gut health, regular bowel function, cardiovascular function, and overall health
  • TOXIN ELIMINATION: Supports the healthy elimination of toxins while maintaining healthy blood sugar and cholesterol levels that are already in the normal range
  • ORGANIC FIBER: RAW, Certified USDA Organic, Vegan, Gluten Free, Dairy Free, Psyllium Free with No Fillers, No Isolates, No Synthetic Nutrients, No Artificial Sweeteners, and No Preservatives
Sale#5 Real Supplements Rated Best in 2020
GoBiotix Prebiotic Fiber Boost Powder | Support a Healthy Gut & Digestive Regularity, Feed Good Bacteria, Ease Gas | Complement For Every Probiotics Supplement | Gluten & Sugar-Free, Keto, Vegan -150g
  • 🌿ORGANIC & PLANT-BASED GUT BACTERIA SUPPORT: Prebiotics are essential for healthy bacteria to thrive within your digestive tract and to ease bloating. OUR CLINICALLY PROVEN TASTELESS PREBIOTIC, made from Nutraflora FOS, is an organic, food-based blend with a nutritional makeup, RICH IN BENEFICIAL MICRO AND MACRO NUTRIENTS that your body can more readily recognize and absorb. This prebiotic fiber supplement also blocks dietary lectins, completely forming a healthy gut ecosystem.
  • 💪DON’T JUST LOOK GOOD, BUT FEEL GOOD: This cutting-edge stool hardener & keto fiber supplement blend helps promote OPTIMAL DIGESTIVE FUNCTION, increases energy levels, supports brain function, mental clarity, and immune function. Furthermore, we now know that nurturing the right balance of microbes in our digestive tract through prebiotic foods supports healthy weight management so that you can DECREASE BLOATING with our effective fiber powder unflavored and look your best.
  • 🔄 OPTIMAL DIGESTIVE FUNCTION FOR ANY DIET: No matter which diet you are on, you probably don’t incorporate enough of these food types into your diet. As a result, we’ve combined POWERFUL FOOD BASED INGREDIENTS AND PREBIOTIC FIBERS for all diets, including low carb diets like the keto diet. Embrace a simple daily serving that will make you look and feel great! By implementing prebiotic foods into your regimen can accelerate your metabolism, and discourages the growth of unfriendly bacteria.
  • ❌NO ARTIFICIAL OR REFINED SUGARS + LOW CARB: Looking for unflavored prebiotic fiber powder? At Gobiotix we NEVER use artificial sugars, added sweeteners, refined flours, or use ingredients containing hydrogenated oils, pesticides, herbicides, hormones or antibiotics. We ONLY use the highest quality REAL Food ingredients that are Organic, Sprouted, Vegan, and Paleo. This is your QUICK EASY MIX which is easily digestible & gut-friendly fiber supplement.
  • ✅HIGH-QUALITY SUPPLEMENTS FROM A BRAND YOU CAN TRUST: At GoBiotix, we use only the highest-quality ingredients, produced under strict quality standards and inspection in a GMP certified facility, right here in the USA!
#6 Real Supplements Rated Best in 2020
Fiber Choice Metabolism & Energy Prebiotic Fiber Gummies, Excellent Source of Vitamins B6 and B12, Helps Support Regularity*, Prebiotic Fiber Helps Support Immune Function*, 90 Count (3 Pack)
  • Prebiotic fiber stimulates the growth and activity of the friendly good bacteria that live in your digestive system, which is also vital for a healthy immune system*.
  • Made with inulin, a prebiotic fiber found in many fruits and vegetables.
  • The #1 Gastroenterologist recommended prebiotic fiber brand (tablets and gummies). (Alpha ImpactRx Provoice Survey (June 2019).
  • A simple and tasty way to get the additional fiber you need each day with NO gelatin and NO artificial colors or flavors.
  • An excellent source of Vitamins B6 and B12, which helps support your metabolic system and energy production*.
#7 Real Supplements Rated Best in 2020
Benefiber Daily Prebiotic Fiber Supplement, Chewable Tablet for Digestive Health, Assorted Fruit, Sugar Free, 100 Count, 100ct
  • Benefiber Original Assorted Fruit fiber chewables. 100% natural prebiotic fiber ingredient
  • Comes in a 100 ct size with orange, lemon, and strawberry/raspberry flavors.
  • For under 6 years or if you are pregnant, ask a health professional before use.
  • Benefiber supports your digestive system’s good bacteria and overall digestive health*
  • These statements have not been evaluated by the FDA. This product is not intended to diagnose, treat, cure or prevent disease.
Sale#8 Real Supplements Rated Best in 2020
NOW Supplements, Psyllium Husk Caps
  • WITH 50 mg APPLE PECTIN: Surveys have shown that the fiber content of the American diet is typically about half of government recommended levels. Psyllium Husks and Apple Pectin can be a convenient way to increase the intake of dietary fiber.*
  • INTESTINAL HEALTH*/HELPS MAINTAIN REGULARITY*: Psyllium has the ability to swell up to 50 times its initial volume when added to liquid. This bulking action can play an important role in maintaining regularity and gastrointestinal health.*
  • CERTIFICATIONS/CLASSIFICATIONS: Non-GMO, Soy Free, Made without Gluten, Keto Friendly
  • GMP Quality Assured: NOW closely adheres to both mandatory U.S. FDA Current Good Manufacturing Practices (CGMP) regulations and voluntary Natural Products Association (NPA) Good Manufacturing Practices (GMP) regulations. Good manufacturing practices ensure compliance with sanitation, processing, documentation, and testing requirements that are designed to promote consistent, highly reproducible product quality and safety.
  • Packaged in the USA by a family owned and operated company since 1968
#9 Real Supplements Rated Best in 2020
Metamucil Sugar-Free Fiber Supplement, 180 Servings, 4-in-1 Psyllium Husk Powder, Orange Flavored Drink, 36.8 Ounce
1,065 Reviews
Metamucil Sugar-Free Fiber Supplement, 180 Servings, 4-in-1 Psyllium Husk Powder, Orange Flavored Drink, 36.8 Ounce
  • FEEL WHAT LIGHTER FEELS LIKE by trapping and removing the waste that weighs you down by making Metamucil a part of your daily fiber routine.*
  • TRAPS AND REMOVES THE WASTE THAT WEIGHS YOU DOWN. Metamucil works by helping you feel lighter and more energetic**
  • SUPPORTS HEALTHY BLOOD SUGAR LEVELS. Taking Metamucil every day helps you maintain healthy blood sugar levels*
  • PROMOTES HEART HEALTH BY LOWERING CHOLESTEROL. Taking Metamucil every day helps you lower your cholesterol
  • CONTROL YOUR APPETITE. The plant-based psyllium fiber in Metamucil helps curb your appetite so you feel less hungry between meals*
#10 Real Supplements Rated Best in 2020
Guardian Fiber Capsules, Natural Psyllium Husk Supplement, 360 Count (520mg per Capsule), Fiber Pills
  • Promotes digestive health and regularity*
  • Helps lower cholesterol to promote heart health*
  • Helps maintain healthy blood sugar levels as part of your diet, helps you feel less hungry in between meals*
  • Made with 100% NATURAL psyllium husk
  • 360 capsules, Compare to Metamucil
#11 Real Supplements Rated Best in 2020
Premium Psyllium Husk Capsules [All Natural & Potent] - Powerful Soluble Fiber Supplement Helps Support Regularity & Digestion, Reduce Constipation, Lower Cholesterol & Support Weight Loss - 240 Caps
  • INCREASE FIBER INTAKE - Our Psyllium Husk Capsules are an excellent source of soluble fiber that cleans digestive tract without any discomfort. It helps ease constipation and improve heart health by lowering cholesterol in a convenient and easy to swallow capsule that is gentle for daily use.
  • BOOST YOUR INTESTINAL AND DIGESTIVE HEALTH by increasing fiber intake in your body. Our psyllium husk supplement is proven to reduce constipation by drawing water to your intestines to help soften your stool and keep your bowel movements regular and comfortable. Feel active and energetic every day by removing the waste that weighs you down.
  • IMPROVES HEART HEALTH & BLOOD PRESSURE as regular intake of our supplement will help prevent cholesterol from entering the blood stream which strengthens your heart muscle and lowers your risk for heart disease.
  • ACHIEVE HEALTHY WEIGHT MANAGEMENT with the concentrated fiber in every capsule. The fiber expands to form a gel-like substance in the gut and helps to curb your appetite in between meals to keep you feeling fuller longer while promoting weight loss naturally.
  • ALL NATURAL INGREDIENTS. N1 Nutrition Psyllium Husk formula is made in the USA in a GMP approved facility to ensure quality & potency. Experience all the benefits our Psyllium Fiber Caps has to offer for a healthier you. Get yours today!
#12 Real Supplements Rated Best in 2020
Anthony's Organic Oat Fiber, 1.5 lb, Gluten Free, Non GMO, Keto Friendly, Product of USA
  • Certified Organic Oat Fiber
  • Contains 1.5 pounds of plant based insoluble fiber
  • All natural, no preservatives, fillers or additives
  • Extremely fine powder, perfect for adding fiber to smoothies
  • Batch tested and verified gluten-free
#13 Real Supplements Rated Best in 2020
Fiber Choice Daily Prebiotic Fiber Chewable Tablets, Sugar-Free, #1 Gastroenterologist Recommendedⱡ, Helps Support Regularity*, Prebiotic Fiber Helps Support Immune Function*, 90 Count Assorted Fruit
  • Prebiotic fiber stimulates the growth and activity of the friendly good bacteria that live in your digestive system, which are helpful for a healthy immune system*.
  • Made with inulin, a prebiotic fiber found in many fruits and vegetables, that helps support regularity*.
  • The #1 Gastroenterologist recommended prebiotic fiber brand (tablets and gummies). (Alpha ImpactRx Provoice Survey (June 2019).
  • Chewable tablets are a simple and tasty way to get the additional fiber you need each day.
  • Helps to close THE FIBER GAP
#14 Real Supplements Rated Best in 2020
Now Foods Psyllium Husk 500mg (. 2Pack (500Vcaps Each))
3,855 Reviews
Sale#15 Real Supplements Rated Best in 2020
Fiber Fueled: The Plant-Based Gut Health Program for Losing Weight, Restoring Your Health, and Optimizing Your Microbiome
  • Hardcover Book
  • Bulsiewicz MD, Will (Author)
  • English (Publication Language)
  • 400 Pages - 05/12/2020 (Publication Date) - Avery (Publisher)
Sale#16 Real Supplements Rated Best in 2020
Kirkland Signature OPTIFIBER Sugar Free Favor Free Gluten Free Non Thickening, NET WT. 760g/26.8 oz (1.6 lbs) (190 Servings)
  • Natural Fiber Supplement, 190 Serving
  • Compare to BENEFIBER
  • Flavor free, Gluten Free, Sugar Free
  • Completely Dissolves in Water
  • Non-Thickening and Grit-Free
Sale#17 Real Supplements Rated Best in 2020
Heather's Tummy Fiber Organic Acacia Senegal for IBS, 16 Ounce Pouch
  • PREBIOTIC FIBER: Our 100% organic acacia senegal powder may help ease IBS-related constipation & diarrhea.* This whole food fiber prebiotic can assist with the growth of good bacteria in the gut.*
  • FORMULATED FOR IBS: Soluble fiber may help support bowel motility, which can help IBS-related diarrhea & constipation.* Designed to slow colonic fermentation which may decrease gas & bloating.*
  • IMPROVES BOWEL STABILITY: Our fiber supplement is non-GMO, CRC Kosher, & contains no gluten or FODMAPS. Heather's Tummy Fiber has excellent GI tolerance & is safe for long-term use in adults & children.*
  • HEATHER'S TUMMY CARE: We have tools to help you take control of IBS symptoms. From managing pain & bloating to dealing with constipation & diarrhea, our medical foods can help you lead your best life.
  • YOU'RE NOT ALONE: Heather's Tummy Care offers education & support for those living with IBS. Our teas, capsules & soluble fiber supplements can help manage symptoms with simple, effective lifestyle changes.
Sale#18 Real Supplements Rated Best in 2020
Metamucil 14-Day Cleanse Fiber, Eliminate Waste, 30 Servings, Psyllium Husk Fiber Supplement, Sugar-Free Powder, Citrus Flavored Drink
  • HELPS ELIMINATE WASTE & PROMOTE REGULARITY by using the power of Metamucil’s natural psyllium fiber.*
  • CLEANSE WITHOUT RADICALLY CHANGING YOUR ROUTINE – just add Metamucil to your healthy diet
  • SUGAR-FREE & GLUTEN FREE fiber powder that’s designed to supplement your daily diet, so you can continue to eat and drink while you cleanse
  • NATURAL CITRUS FLAVOR. Metamucil’s citrus powder is great-tasting and naturally flavored
  • PLANT BASED NATURAL PSYLLIUM FIBER. Metamucil is the only leading brand that contains plant-based psyllium fiber that helps promote digestive health and regularity
#19 Real Supplements Rated Best in 2020
#20 Real Supplements Rated Best in 2020
SmartyPants Kids Formula & Fiber Daily Gummy Multivitamin: Fiber for Digestive Health, Vitamin C, D3, & Zinc for Immunity, Omega 3 Fish Oil (EPA & DHA), B6, Methyl B12, 120 Count (30 Day Supply)
  • Kids Formula & Fiber with new premium ingredients, all in one delicious serving: Beta Carotene, Vitamin B6, Vitamin K2 & Choline (Packaging May Vary).
  • Non-GMO. Free of milk, eggs, peanuts, tree nut allergens, fish allergens, shellfish, soy, gluten and wheat. No synthetic colors or artificial sweeteners/flavors. 3RD PARTY LAB TESTED. No refrigeration required.
  • For children 4 years of age and older, take 2 gummies daily for the first week, 4 gummies daily thereafter. May be taken with or without food. Chew each gummy thoroughly.
  • 15 essential nutrients: omega-3 EPA & DHA (from fish oil), fiber for digestion, vitamin D3 for bone & immune health, vitamin B12 (methylcobalamin) for energy, vitamin E (from sunflower oil) for antioxidant support and iodine for thyroid support.*
  • Multivitamin gummies for kids with omega-3 EPA & DHA (essential fatty acids) sustainably sourced from wild-caught small fish; contains annatto

Fiber Supplements

Fiber is very important to get in our daily diet and unfortunately, most Americans fall short.  Turning to fiber supplements is one of the easiest ways to get it in.   Simple additions of either a pill or powder allows us to get in our recommended daily amount. 

Fiber Factoid:

  • Fiber plays an essential role in your digestive, heart, and skin health, and may improve blood sugar control, weight management, and more
  • Whole grains are not the best source of fiber, as they contain anti-nutrients and glutinous, “binding” proteins; vegetables, nuts, and seeds are the most healthful sources of fiber
  • If your gut health is compromised, fiber may feed pathogenic bacteria; healing your gut with probiotic-rich fermented vegetables is recommended before eating a high-fiber diet
  • Most people need upwards of 50 grams of fiber per 1,000 calories consumed; most Americans get nowhere near this amount

Benefits of Supplementing with Fiber

Why is something completely insoluble to the body so important to ingest?  The FDA recommends that Americans eat between 20-30 grams of fiber a day; however, most adults don’t get even close. Vegetables, fruits, nuts and seeds are among the healthiest forms. Fiber refers to the indigestible portion of these plant foods. Unfortunately, the American diet is so processed that the beneficial healthy fibers are refined out. Fiber is classified as soluble (like cucumbers, beans and nuts) and insoluble (found in dark leafy greens, celery and carrots). Both are important to get in our diet. Soluble fiber benefits by dissolving into a gel which helps slow down digestion.  Insoluble fiber does not dissolve and adds bulk. The benefit being food is moved through more quickly to help in elimination; taking out bad things with it.

9 Health Benefits of Fiber

There’s no shortage of research showing how fiber may boost your health. Some of its top potential benefits include:

Blood sugar control: Soluble fiber may help to slow your body’s breakdown of carbohydrates and the absorption of sugar, helping with blood sugar control.

Heart health: An inverse association has been found between fiber intake and heart attack, and research shows that those eating a high-fiber diet have a 40 percent lower risk of heart disease.

Stroke: Researchers have found that for every seven-grams more fiber you consume on a daily basis, your stroke risk is decreased by 7 %.

Weight loss and management: Fiber supplements have been shown to enhance weight loss among obese people, likely because fiber increases feelings of fullness.

Skin health: Fiber, particularly psyllium husk, may help move yeast and fungus out of your body, preventing them from being excreted through your skin where they could trigger acne or rashes.

Diverticulitis: Dietary fiber (especially insoluble) may reduce your risk of diverticulitis – an inflammation of polyps in your intestine – by 40 percent.

Hemorrhoids: A high-fiber diet may lower your risk of hemorrhoids.

Irritable bowel syndrome (IBS): Fiber may provide some relief from IBS.

Gallstones and kidney stones: A high-fiber diet may reduce the risk of gallstones and kidney stones, likely because of its ability to help regulate blood sugar.

Healthiest Sources of Fiber

If your diet could use more fiber, resist the urge to fortify it with whole grains. Instead, focus on eating more vegetables, nuts, and seeds. The following whole foods, for example, contain high levels of soluble and insoluble fiber.

Chia seeds, Berries, Vegetables such as broccoli and Brussels sprouts, Root vegetables and tubers, including onions and sweet potatoes, Almonds, Psyllium seed husk, flax, chia seeds, Green beans, Cauliflower, Beans, and Green Peas


Real Supplements gives you the best Fiber Supplements on the market today. Our top-rated lists are fresh and current so you get the best options.

Real Supps Team

We needed to put together a site we could send our friends and clients to with confidence they were getting the most updated information.  We hope this site is used as a reference that will make your purchase easier and with as much knowledge as we can share.

With over 30 years experience in the health and fitness industry, we are a team of fitness bloggers and entrepreneurs, certified personal trainers and nutritionists contributing to bringing the most up-to-date content.  We send our friends and clients here for reference to new supplements and hope it serves as a reference site for you as well.

Amazon Best Rated Products - Last Updated on 2020-07-09.

DISCLAIMER: There are affiliate links on this page. This means that at no cost to you, we will receive a small commission if you purchase through our link.