But if you wanted to really take some calcium I would suggest algae-sourced (from companies like Garden of Life - Raw Calcium, New Chapter - Bone Strength, or Nature's Plus's food-sourced line); most other calciums are simply made from rock such as limestone and not very well absorbed by the body. Sadly this source of calcium is extremely expensive (but definitely much better absorbed since it is plant/food sourced). The next alternative to AlgaeCal would be a calcium hydroxyapatite which is usually derived from cattle bones, but still better absorbed than limestone junk. Solaray, Country Life (Bone Solid), and Jarrow (original Bone Up) all make products that use this type of calcium.

I may or may not work full time telling people about this stuff.... *looks around guiltily*... LOL!!!