Osteoporosis and calcium, vitamin D, protein and other deficiencies have a greater relationship, the specific analysis is as follows: 1, calcium: as age increases, calcium will be lost, a person from childhood to 30 years of age, calcium is in the process of accumulation, to 30 years of age to reach the peak of bone, and after 30 years of age, bone will gradually lose, once women menopause, bone will be rapidly lost, prone to osteoporosis; 2, vitamin D: especially in the In the north, the winter is longer, we wear more, coupled with air pollution, ultraviolet light to accept less, so vitamin D is more likely to lose; vitamin D loss and lead to calcium is not easily absorbed, adding to the loss of calcium; 3, protein: in addition to calcium and vitamin D, we must pay attention to the matrix, that is, collagen, and protein-related, the elderly are prone to osteoporosis because after age, the gastrointestinal tract Function degenerates, protein intake gradually decreases, there will be a decrease in muscle, i.e. sarcopenia, which eventually leads to a decrease in collagen and eventually an increased risk of falls, osteoporosis, and osteoporotic fractures will follow. Osteoporosis is a disease that results from a decrease in bone mass and destruction of bone microstructure, which eventually leads to increased bone fragility and increased risk of fracture. Bone has two major basic substances, one is the bone matrix, this part determines the toughness of the bone, mainly formed by collagen, and determines the strength of the bone, mainly the complex formed by calcium and phosphorus is deposited on top of the bone matrix, so the bone has both strength and toughness.