Osteoporosis is a very common phenomenon in the elderly, which will lead to various serious consequences, especially fractures in various parts. One of the main reasons is that vitamin D deficiency leads to a series of metabolic disorders.

The deficiency of vitamin D in the elderly is mainly due to the decrease of ultraviolet radiation in the sun due to the home life of the elderly, which leads to the decrease of endogenous vitamin D synthesis through photosynthesis. In addition, vitamin D in the diet of the elderly is poorly absorbed with age. Long-term vitamin D deficiency can cause osteoporosis and osteomalacia. Causing all kinds of fractures. Therefore, it is necessary for the elderly to supplement vitamin D.