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?
The set is generated, never written by the brand.
Equate Calcium 600mg + D3: a solid everyday formula. Lead: Calcium at 600 mg. Calcium carbonate at 600mg exceeds the 500mg single-dose absorption maximum. The primary is covered; some supporting doses sit below the studied amounts.
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.
2 of 2 shown, 1 dose at what the trials used

This read comes from the product's own supplement facts panel. Every dose was cross-referenced with published clinical trials to see whether it matches what the studies actually used.

