ラットのカルシウム吸収に及ぼすL型発酵乳酸カルシウムの影響

We investigated the effect of fermentation calcium L-lactate on the absorption of calcium in rats. Calcium carbonate was used as a source of calcium of control diet and fermentation calcium L-lactate was used as a source of calcium of test diet. Five-week-old rats were divided into two groups, one group was fed a control diet and another group was fed a test diet for 3 weeks. Both diets contained the same amounts of calcium (0.52%), phosphorus (0.40%) and magnesium (0.05%). Calcium absorption ratio, calcium retention ratio and the concentration of femur calcium of rats fed a test diets did not differ from a control diet group. The amount of femur calcium of rats fed a test diet was slightly higher than those of rats fed a control diet. These results suggest that the ingestion of fermentation calcium L-lactate was imagined to be valid for bony health