SuppRankedOne A Day vs THORNE: Amazon sales compared
By SuppRanked's estimates, THORNE brings in about $35.9M/mo on Amazon versus $3.7M/mo for One A Day (about 9.8×), on ~1M vs ~200K units a month. They meet in 3 Best Sellers lists or markets, and THORNE leads in all of them (est.).
Side by side
| Metric | One A Day | THORNE |
|---|---|---|
| Est. revenue/mo | $3.7M | $35.9M |
| Est. units/mo | 200K | 1M |
| Rank by est. revenue | #45 | #1 |
| SuppRanked rank | #57 | #6 |
| Best-selling products | 14 | 100 |
| Lists ranked in | 5 | 78 |
| #1 list ranks | 0 | 2 |
Head to head where they compete Est. revenue/mo in each list or market · position by est. revenue
| List / market | One A Day | THORNE |
|---|---|---|
| Vitamins List | $1.8M | $5M |
| Multivitamins List | $2.7M | $3M |
| Prenatal Vitamins List | $967K | $1.4M |
History Est. revenue/mo by day · like-for-like, gaps where data changed · how
One A Day
THORNE
Top products By est. revenue/mo
One A Day
- One A Day Multivitamin for Men - Daily Mens Multivitamins with… · ~$961K/mo est.
- One A Day Prenatal Advanced- Prenatal Vitamins with Folic Acid… · ~$453K/mo est.
- One A Day Men’s 50+ Healthy Advantage Multivitamin, Multivitamin for… · ~$449K/mo est.
THORNE
- THORNE Creatine, Micronized Creatine Monohydrate Powder, 90 Servings… · ~$6.6M/mo est.
- THORNE Magnesium Glycinate, Chelated Magnesium Supplement, 90… · ~$1.9M/mo est.
- THORNE Basic Nutrients 2/Day, Vitamin & Mineral Formula, 60 Capsules… · ~$1.6M/mo est.
Watch this rivalry weekly
Rank and est. sales changes for both brands, or every brand as a CSV.
FAQ
Which sells more on Amazon, One A Day or THORNE?
By SuppRanked's estimates, THORNE sells more: about $35.9M/mo in Amazon revenue versus $3.7M/mo for One A Day, and ~1M vs ~200K units a month. These are SuppRanked's modeled estimates from public Amazon Best Sellers ranks and list prices (October 18, 2026), not official Amazon sales data.
Who sells more Vitamins on Amazon, One A Day or THORNE?
In Vitamins, the Best Sellers list where they compete most, THORNE leads with ~$5M/mo against ~$1.8M/mo for One A Day. Modeled estimates, October 18, 2026, not Amazon data.