In this first chapter, we describe different Osteopathies of degenerative or inflammatory nature related to the ageing of people. We are going to give a brief description of the pathogenic processes responsible for bone diseases, with a particular focus on osteoporosis and we will present various options and proposals for the prevention and treatment of changes in bone metabolism with medicines and food supplements. We are going to devote particular attention to the effects of Silicon in these pathologies, until now poorly considered, and we will propose our own formulation composed of Organic Silicon plus trace elements. We have treated a large number of patients, osteopenics or osteoporotics and we have obtained good and encouraging results with this innovative formulation. We therefore consider the proposal presented here to be a valid alternative to traditional pharmacological treatment, with respect to which it has the double advantage of equal effectiveness and absolute absence of side effects.