SuppRankedCalcium market on Amazon
Calcium products on Amazon bring in an estimated $9.5M/mo (~440K units) across the 87 products from 52 brands we track. Citracal leads with about 11% of estimated sales and the top 3 brands hold 27%, a fragmented market.
Brand share Share of est. revenue · top 10
Track the Calcium market
Weekly brand ranks and changes, or every brand as a CSV.
Calcium brand leaderboard By est. revenue/mo
Plus 22 more brands. Full list for every brand: SuppRanked Data.
Rising brands Overall rank, like-for-like vs the previous day · how
Top Calcium products By est. revenue/mo
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Calcium market FAQ
How big is the Calcium market on Amazon?
About $9.5M a month in estimated Amazon.com sales at list price (~440K units), summed across the 87 Calcium 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 16, 2026), not official Amazon sales data.
Which brands lead the Calcium market on Amazon?
Citracal leads with about 11% of estimated sales (~$1M/mo). The top 3 (Citracal, Nature Made, Pure Encapsulations) hold about 27% and the top 10 about 55%.
How many Calcium brands sell on Amazon?
We count 52 identified brands with at least one Calcium product in the lists we track, as of October 16, 2026. A product counts when its title names Calcium as its main ingredient or form; see the methodology.
Updated October 16, 2026. A product counts when its title names Calcium as its main ingredient or form; a product can count in more than one market. Methodology · All 60 markets