Abstract
THE importance of studying the efficiency of different calcium salts in the animal as well as the human diet has long been recognized. Many studies have appeared in the literature concerning the availability of various calcium salts. Much of these data were accumulated, however, before the action of vitamin D on the assimilation of calcium and phosphorus and their relation to bone formation were clearly demonstrated. The results obtained were therefore influenced, if not entirely determined, by the vitamin D content of the diet.Steenbock, Hart, Sell, and Jones (1923) reviewed these data in 1920 and, recognizing the necessity for fat soluble vitamins in the ration, fed rats calcium in the form of the following salts: lactate, carbonate, phosphate, sulfate, and silicate, at a level equivalent to that of .3 percent of calcium. They found no difference in the availability of these salts, basing their conclusions on the rate of .
Published Version
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