
Calcium carbonate absorbs poorly, 600mg exceeds single-dose max, and no K2 means calcium might end up in your arteries instead of bones. Research suggests calcium supplements without K2 may increase heart risk. Eat dairy or use calcium citrate + K2 instead.
Calcium carbonate at 600mg exceeds the 500mg single-dose absorption maximum. D3 at 800 IU is only 20% of optimal. Carbonate form requires stomach acid and is the cheapest, least absorbed calcium. No K2 for calcium direction, no magnesium. For bone health, this is the absolute minimum effort. Split doses would help, but why not just buy calcium citrate?

Verified Supplement Facts
Every dose checked against clinical research
We analyzed the actual supplement facts panel for this product. Every ingredient dose below was cross-referenced with published clinical trials to determine if it matches what studies actually use.
Source: Official product page
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