CYP27A1 and osteoporosis: The results showed a 30% reduction in CTX (C-terminal cross-linked telopeptide type I collagen) in the treated group compared to the placebo group, assuming that the intake of a serum protein product in the evening or before bed of milk can intervene on the homeostasis processes of bone tissue, helping to counteract the onset of degenerative bone diseases, such as osteopenia or osteoporosis [93].