Alimentary osteopathies are classified into primary (with food deficient of Ca, vitamin "D", or of proteins) and secondary ones, that develop consequent to disturbed assimilation and absorption of these substances. Basic causes responsible for the development of alimentary osteopathies are listed and the pathogenesis of this malady is considered. The osteopathies are classified with respect to their causes, the prevalent form (osteoporosis, osteomalacia, or mixed forms) and according to the severity of the skeletal affection (latent stage, that of clinical manifestation and the stage with complications). A review of modern methods of diagnosis and therapy in dealing with alimentary osteopathies by using calcium, vitamin "D" and fluorine, as well as by applying other remedies (thyrocalcitonin, estrogens, androgens, anabolic hormones, diphosphonates) or measures (exercises, rehabilitation) is presented.