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Scored forOutcome alternatives
21st Century400 count • 400 servingsAvailable now$13.29$0.03 / serving4.8 · 7,515 ratings16 / day
92Category leader
#2 of 9504 ranked for bone mineral densityLeader · 21st Century, 21st Century, Calcium Plus D3, 90 Tablets — 92
Why this ranks #2 for bone mineral densityBecause it wins
- Evidence fitVitamin D3 (Cholecalciferol) and Calcium Carbonate are the strongest evidence signals for this outcome.
- Dose fit1 of 2 dosed ingredients land in the studied range. Vitamin D3 (Cholecalciferol) at 20 mcg sits below the studied 800-4000 IU window.
- Price / serving$0.03 per serving — low price tier for this outcome.
- AvailabilityIn stock across major retailers; 99% availability confidence.
- TrustStrong trust signals — consistently high marks from verified buyer ratings.
Trade-offsDose fit is the weak spot on this listPopularity trails the other picks here
The numbers · Bone mineral densityWhat's inside
92
94
57
99
20 mcgBelow rangebelow the studied 800-4000 IU window
600 mgIn rangeinside the studied 500-1200 mg window
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