| 摘要 |
A composition containing readily absorbable calcium which comprises a calcium salt and 0.2 to 5% by weight of chondroitin sulfate based on the calcium content in the calcium salt. A calcium salt preferably used in this composition is obtained by, for example, baking external skeletons of sea urchins in an oven to thereby give calcium oxide, hydrating it into calcium hydroxide and then reacting it with an organic carboxylic acid to thereby give a calcium salt. The absorption of calcium in vivo is highly promoted by adding chondroitin sulfate. As a calcium source various natural and synthetic calcium can be used. |
