One type of isoflavone called daidzein is very similar to a drug widely used in Asia and Europe to treat osteoporosis. This drug prevents bone from breaking down. When the drug is metabolized in the body, it produces daidzein - the same compound found in soybeans. But another isoflavone in soyfoods, genistein, may help. In one recent animal study, genistein was also shown to inhibit breakdown of bone.
Many factors affect bone health.
Weight-bearing exercise, such as walking and running, is one of the most important factors affecting bone health. Choose calcium-rich foods often. Avoid excessive animal protein by eating more grains, beans, fruits and vegetables. Most sodium comes from processed foods. Because many soyfoods provide calcium, are rich in the type of protein that does not induce calcium loss and are a source of isoflavones, they provide a unique way to improve bone health.