Calcium supplementation does not need any season, all year round is the best time for calcium supplementation, mainly depends on whether the patient especially some middle-aged and elderly patients really have calcium deficiency performance, some elderly patients due to the lack of outdoor activities often easy to lead to osteoporosis, especially in winter this time we recommend patients to properly strengthen more outdoor exercise, for adequate sunshine calcium supplementation. Calcium supplementation is generally recommended to use some active vitamin D3 and calcium carbonate, and dietary supplementation is mainly carrot and spinach juice, which contain some active calcium components and beta-carotene, which can be converted into active vitamin D. All of these can play a role in improving osteoporosis.