Strontium There is no evidence yet that strontium is an essential mineral. Our body contains about 300-350 mg., nearly 99 percent of it in the bones and teeth. It closely resembles calcium chemically and can actually displace it. It forms strontium bone salts, which may actually be slightly stronger than those of calcium.

Source: Elson M. Haas M.D. (Excerpted from Staying Healthy with Nutrition: The Complete Guide to Diet and Nutritional Medicine)