You're getting 1,000mg of **Calcium** and 400mg of **Magnesium** per three-tablet serving — both at the top of their supplemental ranges for bone and muscle support. However, calcium absorption drops sharply above 500mg per dose, so splitting your three tablets across meals (rather than taking all at once) will significantly improve how much your body actually absorbs.

The **Magnesium** blend includes citrate (well-absorbed) alongside oxide, which has roughly 4% absorption. The mixed forms mean you're not getting the full benefit of that 400mg number. **Zinc** at 15mg as gluconate covers the minimum studied dose for immune support — adequate but not generous.

The biggest gap here is the absence of **Vitamin D** — without it, your body absorbs only 10-15% of supplemental calcium. If bone health is your primary goal, you'd want to pair this with a separate vitamin D supplement to make the calcium count.