SuppRankedTop 10 Vitamin D3 & K2 brands on Amazon (estimated revenue)
Ranked by estimated monthly revenue from Amazon's Vitamin D3 & K2 Best Sellers top 100. Updated October 15, 2026.
Sports Research is the top-selling Vitamin D3 & K2 brand on Amazon by estimated revenue, at about $1.9M/mo from 4 products in the Vitamin D3 & K2 Best Sellers top 100. That is about 23% more than #2 Micro Ingredients (~$1.5M/mo). The list is fragmented: the top 3 brands take about 24% of its estimated sales and the top 10 about 47%, spread across 68 brands in total. The median list price in this top 100 is $22.38, and 8% of the products are gummies. All figures are modeled estimates, not Amazon data.
The top 10, brand by brand
1. Sports Research
~$1.9M/mo est. revenue (11% of this list) and ~78.5K units/mo from 4 products; best position #1. Its highest-ranked product here is Sports Research® Vegan Vitamin D3 + K2 w/Coconut Oil, 60 Count Plantgels™… at #1. Overall it ranks #6 of 935 brands.
2. Micro Ingredients
~$1.5M/mo est. revenue (9% of this list) and ~56.8K units/mo from 4 products; best position #5. Its highest-ranked product here is Micro Ingredients Vitamin D3 K2 MK-7 10,000 IU Per Serving, 300 Softgels | Made… at #5. Overall it ranks #8 of 935 brands.
3. Nature Made
~$804K/mo est. revenue (5% of this list) and ~67K units/mo from 2 products; best position #2. Its highest-ranked product here is Nature Made Vitamin D3 K2 Supplement, 30 Softgels | Vitamin D 5000 IU (125 mcg)… at #2. Overall it ranks #1 of 935 brands.
4. Dr. Berg Nutritionals
~$682K/mo est. revenue (4% of this list) and ~37.9K units/mo from 1 product; best position #3. Its highest-ranked product here is Dr. Berg 7-in-1 Vitamin D3 K2 5000 IU | Naturally Derived D3 | 4X Lab-Tested &… at #3. Overall it ranks #109 of 935 brands.
5. Metagenics
~$661K/mo est. revenue (4% of this list) and ~22.1K units/mo from 1 product; best position #7. Its highest-ranked product here is Metagenics Vitamin D3 5000 + K2, MK-7 Bone Support, 60 Softgels | 125 mcg… at #7. Overall it ranks #67 of 935 brands.
6. Bronson Vitamins
~$625K/mo est. revenue (4% of this list) and ~58.3K units/mo from 4 products; best position #4. Its highest-ranked product here is Bronson Vitamin K2 D3 (MK7) Supplement 2-in1 D3 & K2 Complex, 60 Capsules… at #4. Overall it ranks #17 of 935 brands.
7. Designs for Health
~$573K/mo est. revenue (3% of this list) and ~14.2K units/mo from 2 products; best position #19. Its highest-ranked product here is Designs for Health Vitamin D Supreme, D3 + K2 Enhanced, 60 Capsules | D3 with… at #19. Overall it ranks #61 of 935 brands.
8. Organics Ocean
~$549K/mo est. revenue (3% of this list) and ~15.3K units/mo from 1 product; best position #11. Its highest-ranked product here is Organics Ocean Better D3+K2 Vitamin Supplement, 30 Softgels | 3,000 IU VegD3… at #11. Overall it ranks #83 of 935 brands.
9. Sandhu's
~$431K/mo est. revenue (2% of this list) and ~14.4K units/mo from 1 product; best position #12. Its highest-ranked product here is Vitamin D3 K2 5000 IU 120mcg Magnesium Zinc B6 Quercetin Capsules 120 Count… at #12. Overall it ranks #272 of 935 brands.
10. Nordic Naturals
~$421K/mo est. revenue (2% of this list) and ~15.1K units/mo from 2 products; best position #29. Its highest-ranked product here is Nordic Naturals Vitamin D3+K2 Gummies, Pomegranate - 120 Count | 1000 IU… at #29. Overall it ranks #14 of 935 brands.
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Full Vitamin D3 & K2 ranking
All 68 brands in the list, ordered by rank strength, plus the top 10 products.
See all Vitamin D3 & K2 brands →