Osteoporosis is a chronic disease with a growing prevalence due to the increase in life expectancy [1]. It is far more common in women than in men, and its prevalence increases markedly after the menopause. Approximately 30% of all postmenopausal women have osteoporosis in the United States and Europe, and at least 40% of these women will suffer one or more fragility fractures [2]. As with other chronic diseases affecting modern societies, such as cardiovascular disease and cancer, risk reduction is a preferred strategy.