Abstract: In order to study the preventive effects of soybean on osteoporosis of ovariectomized rats. The results show that ALP and HYP significantly decreasa in rats of Soy group compared with rats of Ovx group. In rats of Soy, the excretion from feces and urine significantly appears lower than that in rats of Ovx group, apparent absorption of calcium and calcium retention significantly higher than that in rats of Ovx group.

Key words: Soybean Osteoporosis Ovariectomy Rats