This clinical study investigates the effects of Fonte Fausta® water on bone and muscle metabolism, as well as quality of life, in patients with osteoporosis or osteopenia, with or without sarcopenia. Conducted as a multicenter, triple-arm trial, it evaluates functional and biochemical markers over 12 months. Patients are randomized into groups receiving either Fonte Fausta® or standard mineral water, with assessments including laboratory tests, bioimpedance analysis, physical and nutritional evaluations, bone density measurements, and quality of life surveys.