Fiber supplements tested and reviewed for 2026

The article reports testing of eight fiber supplements and consultation with dietitians and physicians, noting most adults fall short of the recommended 25–38 grams of daily fiber; the top pick was checked on Jan. 30, 2026 and remained unchanged.

Most adults do not get recommended amounts of fiber, and the piece reviews supplements that can help bridge that gap. Health experts and registered dietitians were consulted, and eight products were personally tested over several weeks. The article explains types of fiber, forms of supplements, potential side effects, and factors to consider when choosing a product. Prices and availability were checked on Jan. 30, 2026 and the author's top pick remained the same. Key findings: - Recommended daily fiber is commonly cited as about 25 grams for many women and 38 grams for many men, with adjusted amounts after age 50 noted in the article. - The article reports that roughly 1 in 20 Americans meet recommended fiber intake. - Eight fiber supplements were tested and evaluated alongside input from registered dietitians and physicians; the top choice was rechecked on Jan. 30, 2026 and unchanged. - Common types of supplement fibers include soluble fibers (like inulin and beta‑glucan) and synthetic options (such as polydextrose and methylcellulose), and supplements are available as powders, gummies, capsules and liquids. - Experts cited potential side effects when increasing fiber intake too quickly, including gas, bloating and abdominal discomfort, and noted that supplements can affect absorption of some medications. Summary: The review emphasizes that fiber supplements can help people who are not meeting dietary fiber recommendations and provides information about types, forms and expected effects of these products. Undetermined at this time.