The 8 Best Fiber Supplements to Buy in 2019

Keep your digestive system in check with these options

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.

Fiber is important to keep our digestive systems working properly, and it can also help lower cholesterol, maintain healthy blood sugar and even manage our weight. While it’s readily available in many fruits and vegetables, many of us still come up lacking when it comes to packing enough fiber into our diets. Fiber supplements may help fill in the gap.

Whether in pill, powder, or even gummy form, there are a variety of fiber supplements on the market today for adults and kids alike. While it’s always important to speak with your healthcare provider before adding any supplement to your diet, it’s especially important when it comes to fiber, as supplements can interfere with certain medications. If you decide one is right for you, here are the best fiber supplements to consider.

Our Top Picks

Best Overall: Metamucil® Orange Sugar Free Multihealth Fiber Powder

Metamucil® Orange Sugar Free Multihealth Fiber Powder

Courtesy of Target

Perhaps the most well-known name in the fiber supplement industry, Metamucil gets high marks from customers and doctors alike. This powder, made of 100 percent psyllium husk, promotes overall digestive health by helping you feel full longer and maintaining healthy blood sugar. It may also help keep your cholesterol in check, which is, of course, good for your heart.

Each serving (2 teaspoons) contains 90 calories and 6 grams of fiber, and it can be taken up to three times a day by those ages 12 and older. Customers love the trusted brand and say it’s a good value, works effectively and tastes good. Some, however, complain that it includes artificial sweeteners (sucrose is the first ingredient listed).

Runner Up, Best Overall: Fibercon Fiber

These capsules from FiberCon are designed to help keep you regular without some of the side effects of other fiber supplements, such as gas and bloating. It’s made primarily of calcium polycarbophil, which absorbs water from the stool to help regulate bowel movements and eliminate occasional diarrhea and constipation.

The recommended dose is two caplets, which should always be taken with at least 8 glasses of fluid, and up to four doses per day may be taken depending on your needs.

Customers give this supplement high marks, with 75 percent of the 250 plus reviewers on Amazon giving it five stars. They say it works well, and they like the pill form that eliminates the mess of mixing. Many also note that it doesn’t come with the bloating and gas they experience with other fiber supplements.

Best to Help Lower Cholesterol: Konsyl Original Formula, 15.9 oz.

This fiber formula from Konsyl is designed to promote heart health by lowering cholesterol. Gluten-free as well as sugar-free, it contains 6 grams of psyllium fiber in each dose (1 teaspoon). It’s recommended for use up to three times a day for adults and children 12 and older.

Customers say it works well, with many noting that their doctor recommended this brand. While the taste alone isn’t a favorite, they say it mixes well with juice or a smoothie, and the results are worth it.

Best Taste-Free: Benefiber Fiber Supplement - 760g 190 Servings Sugar Free

If you don’t like all the fancy flavorings that come in many other fiber supplements, this one from Benefiber is taste-free. Each serving (2 teaspoons) contains 15 calories, 3 grams of fiber and is made to dissolve completely in your favorite foods or beverages. This formula is 100 percent natural, gluten-free and sugar-free.

Customers say they love its lack of flavoring, because it’s easy to mix into virtually any food or drink, and you don’t even realize it’s in there. While some report gassiness and bloating when first using the product, most say that gradually adding it to their diet eliminates those side effects. Most find it an easy and effective way to add fiber to their diet with more than 75 percent of the 330-plus reviewers on Amazon giving it five stars.

Best Organic: Garden of Life Raw Organic Superfood Fiber

For a pure fiber formula, there’s this Raw Fiber from Garden of Life. Made from 15 raw, organic superfoods, including grains, sprouted seeds and legumes, along with probiotics and omega-3 fatty acids, it’s designed to support not only your digestive system, but your heart and overall health as well. Each 120-calorie serving contains 9 grams of fiber, 9 grams of protein and 1 gram of sugar (sweetened with Stevia). The formula is vegan, gluten-free and dairy-free, so it works well for most people with dietary restrictions.

Customers say it’s effective and while it doesn’t taste the best, it mixes in well with smoothies and other beverages. Many recommended drinking it quickly, however, to avoid clumping.

Easiest on the Stomach: Citrucel Powder Orange Flavor Fiber Therapy

While fiber is a good thing, too much fiber can lead to too much gas and bloating. This powder from Citrucel has been proven to eliminate occasional constipation without causing gas. To use, it’s recommended that adults mix one scoop of the orange-flavored, soluble fiber with cold water and take it up to three times per day. Half that dose is recommended for children ages 6 to 12. Each scoop contains 60 calories.

Customers say it tastes good and works well for diarrhea as well as constipation. Many with Irritable Bowel Syndrome say it’s a great tool for managing symptoms. More than 70 percent of the 190-plus reviewers on Amazon gave it five stars.

Best For Kids: Yummi Bears Fiber Supplement Gummy Vitamin for Kids

Made just for little tummies, these Yummi Bears taste like a treat, but are actually packed with good stuff to keep their digestive system moving and healthy. One serving (four bears) contains 15 calories and 3 grams of fiber. They’re free of most allergens include gluten, nuts, dairy, wheat and eggs, and contain just 1 gram of sugar per serving.

The bears come in four yummy flavors—strawberry, orange, grape and pineapple—and customers say even the pickiest eaters love them. More than 65 percent of the 550-plus reviewers on Amazon gave these gummies five stars.

Best Gummies: Vitafusion Fiber Well Fit Gummies

Gummies aren’t just for kids. These fruity chews from Vitafusion for adults pack in 5 grams of fiber per serving (two gummies). The chews are sugar-free, and also contain six B vitamins and 100 percent of the recommended daily amount of folic acid.

Customers say they taste great and get the job done. The downside: They taste so good, you may want to eat more than the recommended dose, which is not a good idea. More than 800 customers have reviewed these chews on Amazon, with 70 percent giving them five stars.

Was this page helpful?