The 7 Best Fiber Supplements of 2019

Ease your stomach aches with extra fiber

Our editors independently research, test, and recommend the best products; you can learn more about our review process here. We may receive commissions on purchases made from our chosen links.

First Look

Best Overall: NOW Psyllium Husk Powder at Amazon

“Improves bowel regularity without irritating your digestive system.”

Best Budget: Equate Daily Fiber Powder at Amazon

“Uses affordable psyllium husks to help keep you regular.”

Best for Diarrhea: Heather’s Tummy Fiber at Amazon

“It’s tasteless, so you can mix it with water.”

Best for Constipation: Garden of Life RAW Fiber at Amazon

“Has nine grams of fiber per serving."

Best for High Cholesterol: Benefiber Fiber Supplement at Amazon

“Uses wheat dextrin, a soluble fiber that lowers cholesterol.”

Best Gummies: VitaFusion Fiber Well Fit at Amazon

“Won the 2018 ChefsBest Excellence Award for their taste.”

Best for Sensitive Stomachs: SuperDosing Acacia Fiber at Amazon

“Safer for people with sensitive digestive systems."

Our Top Picks

Best Overall: NOW Psyllium Husk Powder

Psyllium husk is a form of soluble fiber, which means it absorbs water from your stomach and intestines, then turns into a gel consistency. It can increase your bowel frequency without taking you into diarrhea territory (much like insoluble fiber), but it’s easier on your intestines.

NOW’s powder improves bowel regularity without irritating your digestive system. It’s simple to take—just mix one tablespoon into 12 ounces of water every day. Make sure that you increase your water intake whenever you take any fiber supplement: the added bulk can swell in your throat, making it difficult to swallow, or create intestinal discomfort. For an even tastier dose of fiber, bake NOW’s powder into homemade breads or muffins.

Best Budget: Equate Daily Fiber Powder

Equate’s Daily Fiber Powder uses affordable psyllium husks to help keep you regular. This 100% natural psyllium husk powder comes in a tasty, sugar-free orange flavor. Just mix one teaspoon into a 12-ounce glass of water up to three times a day. You should start noticing a positive difference in your bowel movements in 24 to 72 hours.

Best for Diarrhea: Heather’s Tummy Fiber

Soluble fiber is helpful for people with diarrhea. It slows down the passage of stool through your intestines. Acacia Senegal, a soluble fiber taken from trees in sub-Saharan Africa, has been shown to reduce diarrhea.

Heather’s Tummy Fiber uses 100% organic, Kosher-certified Acacia Senegal to improve diarrhea symptoms. It’s tasteless, so you can mix it with water, your favorite flavored beverage, or cook it into food to get your daily intake. An added bonus? It’s only 10 calories per serving.

Best for Constipation: Garden of Life RAW Fiber for Constipation Relief

If you’re struggling with constipation, you’ll want to go for an insoluble fiber supplement. Insoluble fiber adds bulk to your stool and helps it pass through your digestive system more quickly. Garden of Life’s organic superfood fiber supplement has a mix of soluble and insoluble fiber to improve your constipation without creating loose stools.

RAW has nine grams of fiber per serving. It uses a soothing blend of fibers from plants, and it doesn’t contain psyllium husk, which may irritate sensitive stomachs. The powder also contains omega-3 fatty acids, which keep your heart, immune system, and lungs running smoothly. Adults should mix one scoop with a glass of water every day.

If you’re also dealing with hemorrhoids, read our roundup of the best over-the-counter hemorrhoid treatments.

Best for High Cholesterol: Benefiber Fiber Supplement

If you have high cholesterol, fiber supplements are an inexpensive option to help lower your cholesterol count. If you’re not getting enough from your diet, a supplement like Benefiber can add soluble fiber to your daily regimen.

Benefiber uses wheat dextrin, a soluble fiber that lowers cholesterol, to up your fiber intake. It also contains prebiotics that can improve the overall health of your digestive system. Benefiber is 100% clear and dissolves quickly in water or other drinks. Stir two teaspoons in your beverage of choice once a day.

Want to stay on top of your cholesterol from home? Check out our list of the best cholesterol test kits.

Best Gummies: VitaFusion Fiber Well Fit

If you have trouble remembering to take your fiber supplement every day, adding fun gummies to the mix might help. VitaFusion’s gummies pack a serious fiber punch.

These gummies won the 2018 ChefsBest Excellence Award for their delicious taste. Each serving contains five grams of fiber. The natural Peach, Cherry, and Raspberry flavors are made without high-fructose corn syrup, synthetic dyes, or gluten.

Best for Sensitive Stomachs: SuperDosing Acacia Fiber for Sensitive Stomachs

Fiber supplements are the go-to solution for constipation, diarrhea, and other intestinal upsets. But if you’ve already got a sensitive stomach, it’s a little tougher to find a supplement that won’t make the problem worse. SuperDosing’s fiber supplement is designed for people with sensitive stomachs who still need a daily fiber boost.

SuperDosing’s supplement contains acacia fiber, a soluble fiber that’s been proven to reduce diarrhea and stomach upset, improving your overall digestive health. The supplement is gluten, dairy, and lactose-free. It comes in convenient capsules, and the bottle contains enough doses for a full year of fiber supplementation. It doesn’t contain any bulking laxatives, so it’s safer for those with sensitive digestive systems.

Experiencing gas? Take a look at our reviews of the best gas medicines.

Our Process

Our writers spent 4 hours researching the best fiber supplements on the market. Before making their final recommendations, they considered 20 different fiber supplements to buy overall, screened options from 28 different brands and manufacturers, read over 36 user reviews (both positive and negative), and tested 2 of the supplements themselves. All of this research adds up to recommendations you can trust.

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