This supplement provides a blend of three calcium forms: carbonate, citrate, and hydroxide, offering a combined 350mg of elemental calcium per serving. The inclusion of various calcium forms can help with absorption for different individuals, making it a fairly straightforward option for daily calcium intake.
It also includes a small amount of Vitamin D (3.30mcg, or 132 IU) and Vitamin K-1 (30mcg). While these vitamins are known to work with calcium, the D dose is quite modest, and K-1 is traditionally recognized for its role in blood clotting more than the specific bone mineralization support often associated with K2 forms.