Knochenstärkendes Mittel, Lebensmittel und Getränke enthaltend dieses Mittel

摘要

A bone reinforcing agent comprising a basic protein fraction or a basic peptide fraction derived from milk as an effective component. The basic protein fraction is obtained preparing milk or a raw material derived from milk in a cation exchange resin and eluting the adhered fraction. The basic peptide fraction is obtained by hydrolyzing the basic protein fraction with a protease. The basic protein fraction and basic peptide fraction of the present invention promote growth of osteoblast and suppress resorption of osteoclast, and thereby strengthen bones, when orally administered. It is useful for treating or preventing various bone diseases such as osteoporosis.