Who makes ONE A DAY? Amazon sales, products and sellers
Updated November 2026 with September 2026 data
At a glance
- Size
- Large
- $4.9M est./mo
- Trend
- Declining
- -16%, last 2 vs prior 2 months
- Ratings
- Strong
- 4.7 ★ · 203,253 reviews
- Who sells it
- Mostly one seller
- Top seller has >99% of units
ONE A DAY estimated monthly revenue on Amazon
Our read on ONE A DAY
ONE A DAY ranks 3 of 346 brands in Multivitamins within Health & Household, with an estimated 6% of the category's revenue. In September 2026, estimated revenue was $4.9M on 253,000 units, about the same as June 2026, when it was also $4.9M (-1% since the first month). Over the latest 2 months the trend is labeled Declining, at -16%. The brand has 29 products selling, led by One A Day Multivitamin for Men at 81,000 units per month. Ratings are strong, with an average of 4.7 across 203,253 reviews. Sales are concentrated: Amazon accounts for more than 99% of units, out of 4 sellers. This view rests on 4 months of data.
Top ONE A DAY products on Amazon
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| Product | Rating | Est. units/mo | Amazon link |
|---|---|---|---|
| One A Day Multivitamin for Men | 4.7 ★58,612 reviews | 81,000 | Check price on Amazon |
| One A Day Multivitamin for Women- Daily Vitamins for Woman with Biotin | 4.7 ★18,345 reviews | 40,000 | Check price on Amazon |
| One A Day Men’s 50+ Healthy Advantage Multivitamin | 4.8 ★17,342 reviews | 27,000 | Check price on Amazon |
| One A Day Prenatal Advanced- Prenatal Vitamins with Folic Acid | 4.5 ★9,666 reviews | 14,000 | Check price on Amazon |
| One A Day Women’s Petites Multivitamin,Supplement with Vitamin A | 4.7 ★37,836 reviews | 13,000 | Check price on Amazon |
| One A Day Prenatal Vitamins- Folic Acid | 4.5 ★7,301 reviews | 12,000 | Check price on Amazon |
| One A Day Men’s Pro Edge Multivitamin | 4.7 ★7,161 reviews | 7,100 | Check price on Amazon |
| One A Day Women's Menopause Multivitamin | 4.8 ★275 reviews | 6,600 | Check price on Amazon |
| One A Day Teen Boy’s Daily Essentials Multivitamin Gummies | 4.7 ★1,001 reviews | 6,200 | Check price on Amazon |
| One A Day Men’s Daily Essentials Multivitamin Gummies | 4.4 ★664 reviews | 5,500 | Check price on Amazon |
Who sells ONE A DAY
- Amazon>99%
- GreatDeal2025<1%
- One More Sale<1%
- supersonic supply<1%
Share of estimated units sold in September 2026, by the seller holding the Buy Box.
Place in its category
#3 of 346
Rank 3 of 346 brands in Multivitamins by estimated revenue in September 2026, with 6% of the category.
Frequently asked questions
Who makes ONE A DAY?
ONE A DAY is the brand name on 29 products we tracked on Amazon in September 2026 mostly in Multivitamins (Health & Household). The largest seller of ONE A DAY products that month was Amazon, with >99% of estimated units. Amazon listings don't show the brand owner's legal name, so the brand's own website is the place to confirm its parent company.
How much does ONE A DAY sell on Amazon?
ONE A DAY sold an estimated $4.9M on Amazon in September 2026, about 253,000 units. That is -1% compared with June 2026. These are Ecominsights estimates, not figures reported by the brand.
What are ONE A DAY's best-selling products on Amazon?
By estimated units sold in September 2026: 1. One A Day Multivitamin for Men (about 81,000 units); 2. One A Day Multivitamin for Women- Daily Vitamins for Woman with Biotin (about 40,000 units); 3. One A Day Men’s 50+ Healthy Advantage Multivitamin (about 27,000 units).