SuppRankedTop 10 dietary fiber brands on Amazon (estimated revenue)
Ranked by estimated monthly revenue from Amazon's Dietary Fiber Best Sellers top 100. Updated October 15, 2026.
Metamucil is the top-selling dietary fiber brand on Amazon by estimated revenue, at about $2.6M/mo from 11 products in the Dietary Fiber Best Sellers top 100. That is about 2.0× as much as #2 Benefiber (~$1.3M/mo). The list is fairly concentrated: the top 3 brands take about 33% of its estimated sales and the top 10 about 54%, spread across 65 brands in total. The median list price in this top 100 is $22.00, and 36% of the products are gummies. All figures are modeled estimates, not Amazon data.
| # | Brand | Est. revenue/mo |
|---|---|---|
| 1 | Metamucil19% share · best #1 | $2.6M |
| 2 | Benefiber10% share · best #4 | $1.3M |
| 3 | Amazon Basics4% share · best #2 | $527K |
| 4 | Belli3% share · best #10 | $455K |
| 5 | FOODOLOGY3% share · best #5 | $444K |
| 6 | THORNE3% share · best #20 | $439K |
| 7 | MiraLAX3% share · best #3 | $432K |
| 8 | Tomorrow's3% share · best #6 | $416K |
| 9 | Pendulum3% share · best #30 | $346K |
| 10 | Olly2% share · best #8 | $332K |
The top 10, brand by brand
1. Metamucil
~$2.6M/mo est. revenue (19% of this list) and ~1K units/mo from 11 products; best position #1. Its highest-ranked product here is Metamucil 4-in-1 Psyllium Husk GLP-1 Friendly Fiber Supplement, Sugar-Free, 72… at #1. Overall it ranks #20 of 935 brands.
2. Benefiber
~$1.3M/mo est. revenue (10% of this list) and ~65.2K units/mo from 5 products; best position #4. Its highest-ranked product here is Benefiber Prebiotic Fiber Supplement Powder, Unflavored, 250 Teaspoons… at #4. Overall it ranks #50 of 935 brands.
3. Amazon Basics
~$527K/mo est. revenue (4% of this list) and ~54.1K units/mo from 1 product; best position #2. Its highest-ranked product here is Amazon Basics Fiber 4g Gummy - Digestive Health, Supports Regularity, Orange… at #2. Overall it ranks #12 of 935 brands.
4. Belli
~$455K/mo est. revenue (3% of this list) and ~19.3K units/mo from 3 products; best position #10. Its highest-ranked product here is Belli Welli Fiber Supplement Powder with Prebiotics for Digestive Health and… at #10. Overall it ranks #183 of 935 brands.
5. FOODOLOGY
~$444K/mo est. revenue (3% of this list) and ~20.2K units/mo from 1 product; best position #5. Its highest-ranked product here is FOODOLOGY Coleology Cutting Jelly, Pomegranate Flavor, 10 Sticks | Dietary… at #5. Overall it ranks #162 of 935 brands.
6. THORNE
~$439K/mo est. revenue (3% of this list) and ~10K units/mo from 2 products; best position #20. Its highest-ranked product here is THORNE FiberMend, Prebiotic Fiber Powder with Antioxidants, 30 Servings… at #20. Overall it ranks #3 of 935 brands.
7. MiraLAX
~$432K/mo est. revenue (3% of this list) and ~27.1K units/mo from 1 product; best position #3. Its highest-ranked product here is MiraFIBER Gummies, from The Makers of MiraLAX, Vegan Formula, 8g Per Serving… at #3. Overall it ranks #120 of 935 brands.
8. Tomorrow's
~$416K/mo est. revenue (3% of this list) and ~16.7K units/mo from 1 product; best position #6. Its highest-ranked product here is Tomorrow's Nutrition, Fiber, GLP-1 Friendly, Made with Sunfiber, Unflavored… at #6. Overall it ranks #201 of 935 brands.
9. Pendulum
~$346K/mo est. revenue (3% of this list) and ~5.4K units/mo from 1 product; best position #30. Its highest-ranked product here is Pendulum Akkermansia Probiotic with Prebiotic Fiber - Increases GLP-1… at #30. Overall it ranks #295 of 935 brands.
10. Olly
~$332K/mo est. revenue (2% of this list) and ~19.4K units/mo from 2 products; best position #8. Its highest-ranked product here is OLLY Fiber Gummy Rings, Digestive Health Supplement, Berry Melon - 50 Count… at #8. Overall it ranks #11 of 935 brands.
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Full Dietary Fiber ranking
All 65 brands in the list, ordered by rank strength, plus the top 10 products.
See all Dietary Fiber brands →