Osteoporosis refers to decreased bone density and bone mass, which increases the fragility of bones and can lead to fractures and other systemic skeletal diseases. It commonly occurs in postmenopausal women or arises due to degenerative changes in the elderly. To prevent osteoporosis, one can start with dietary adjustments by increasing the intake of calcium-rich foods such as milk, shrimp crackers, kelp, and legumes. It is also important to engage in appropriate physical activities to enhance bone strength, thereby helping to prevent the exacerbation of osteoporosis. However, merely supplementing with calcium might not be very effective; it is also appropriate to supplement with Vitamin D. If adding calcium alone does not alleviate the symptoms, it might be necessary to use medications that reduce the loss of calcium to prevent and treat osteoporosis.