A Closer Look at Whether Two Calcium Supplements Make the Grade

January 2005
Environmental Nutrition;Jan2005, Vol. 28 Issue 1, p7
This article compares several different brands of calcium-containing bone supplements. These supplements are often with several different forms and formulas within each brand. Caplets, tablets, chewables, even liquids and calcium gum are now available. Both Os-Cal and Ciracal, both leading brands of calcium supplements, differ in their sources of calcium and cost. Os-Cal, which comes from oyster shells, costs a little less than Ciracal, which is made from calcium citrate. In the late 1990's, lead was found in some calcium supplements derived from natural sources, such as bone meal and oyster shells. A recent study found that after testing 136 natural calcium for lead, there was significantly less in lead in oyster shell supplements compared to previous reports.


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