SuppRankedFiber & Psyllium market on Amazon
Fiber & Psyllium products on Amazon bring in an estimated $18.5M/mo (~811K units) across the 142 products from 68 brands we track. Metamucil leads with about 34% of estimated sales and the top 3 brands hold 54%, a concentrated market.
Brand share Share of est. revenue · top 10
Track the Fiber & Psyllium market
Weekly brand ranks and changes, or every brand as a CSV.
Fiber & Psyllium brand leaderboard By est. revenue/mo
Plus 38 more brands. Full list for every brand: SuppRanked Data.
Rising brands Overall rank, like-for-like vs the previous day · how
Top Fiber & Psyllium products By est. revenue/mo
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Fiber & Psyllium market FAQ
How big is the Fiber & Psyllium market on Amazon?
About $18.5M a month in estimated Amazon.com sales at list price (~811K units), summed across the 142 Fiber & Psyllium products SuppRanked tracks in Amazon's supplement Best Sellers lists. Products outside those lists are not counted, so treat it as a floor and an order-of-magnitude figure. These are SuppRanked's modeled estimates from public Amazon Best Sellers ranks and list prices (October 18, 2026), not official Amazon sales data.
Which brands lead the Fiber & Psyllium market on Amazon?
Metamucil leads with about 34% of estimated sales (~$6.4M/mo). The top 3 (Metamucil, Benefiber, Vitafusion) hold about 54% and the top 10 about 72%.
How many Fiber & Psyllium brands sell on Amazon?
We count 68 identified brands with at least one Fiber & Psyllium product in the lists we track, as of October 18, 2026. A product counts when its title names Fiber & Psyllium as its main ingredient or form; see the methodology.
Updated October 18, 2026. A product counts when its title names Fiber & Psyllium as its main ingredient or form; a product can count in more than one market. Methodology · All 60 markets