Calcium
It is an alkaline earth metal, as well as magnesium.
Avoid high-calcium diets, which have been shown to stimulate prostate cancer growth.
Consume calcium citrate, don't consume calcium carbonate
vitamin D and/or magnesium help with absorption
Given the wide use of refined sugar and flour in processed foods, the widespread use of calcium supplements, and the increased practice of fortifying foods with calcium, daily magnesium supplements can be protective. Magnesium supplements can be found in various forms such as inorganic MgO and MgCl2, in tablets and capsules and in a better-absorbed organic form such as water soluble Magnesium Citrate.
Calcium supplementation must be accompanied with magnesium, vitamin D and vitamin K2.
If you are going to take calcium, you need to balance it out with vitamin D and vitamin K2, at the very least. It is also important that you get adequate magnesium, silica, omega-3 fatty acids, and weight-bearing exercise, which are all important to the health of your bones.
See also:
atherosclerosis