SuppRankedTHORNE vs One A Day: Amazon sales compared
Estimated Amazon revenue, units and category ranks for both brands, side by side. Updated October 15, 2026.
On Amazon, THORNE brings in an estimated $43.4M/mo versus $2.8M/mo for One A Day, roughly 15× as much as its rival (modeled estimates, Oct 15, 2026). THORNE also sells more units (~1.2M vs ~141K a month) across 100 ranked products to 13. They meet in 4 Best Sellers lists, and THORNE out-sells One A Day in every one.
Head to head
| Metric | THORNE | One A Day |
|---|---|---|
| Est. revenue/mo | $43.4M | $2.8M |
| Est. units/mo | 1.2M | 141K |
| Overall rank (score) | #8 | #110 |
| Rank by est. revenue | #4 | #153 |
| SuppRanked score | 78.0 | 53.0 |
| Best-selling products | 100 | 13 |
| Categories ranked in | 79 | 5 |
| #1 category ranks | 2 | 0 |
| Gummy share | 0% | 15% |
Shared categories Est. revenue/mo in each Best Sellers top 100 · best position
| Category | THORNE | One A Day |
|---|---|---|
| Vitamins, Minerals & Supplements | $9M | $627K |
| Vitamins | $4.3M | $1.2M |
| Multivitamins | $2M | $1.6M |
| Prenatal Vitamins | $1.5M | $1.2M |
Top products
THORNE
One A Day
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FAQ
Which sells more on Amazon, THORNE or One A Day?
By SuppRanked's estimates, THORNE sells more: about $43.4M/mo in Amazon revenue versus $2.8M/mo for One A Day. These are SuppRanked's modeled estimates from public Amazon Best Sellers ranks and list prices (October 15, 2026), not official Amazon sales data.
Who sells more Vitamins, Minerals & Supplements on Amazon, THORNE or One A Day?
In the Vitamins, Minerals & Supplements Best Sellers top 100, THORNE leads with ~$9M/mo estimated, against ~$627K/mo for One A Day. Estimates only.