According to the data published by the Chinese Nutrition Society, the daily intake of calcium should be about 300mg for infants, increasing to 400mg per day after the age of 5, reaching 800mg per day after the age of 7, and 800mg per day for adults, and increasing to 1000mg per day for the elderly, and higher to 1200mg per day for pregnant women and lactating mothers. Each person, whether they are calcium deficient and need to supplement The amount of calcium needed varies from person to person. Excessive calcium levels in the body can cause calcium salt deposits, which can affect the absorption of phosphorus and, in turn, cause some damage to the body. The maximum tolerable intake of calcium for adults is 2000 mg per day, which is not the recommended standard intake. Generally speaking, the recommended intake for adults is 800mg per day. The closer the intake of calcium is to the tolerable maximum intake, the greater the risk of health hazards. Excessive calcium intake may interfere with the body’s absorption and utilization of other nutrients, and may also lead to an increased risk of kidney stone disease, etc. Therefore, the more calcium supplementation is not the better. In the process of calcium supplementation, you should get more sunlight to accelerate the synthesis of vitamin D in your body, which is beneficial for calcium absorption. As for the need to supplement vitamin D at the same time as calcium, experts suggest that it is best to follow the guidance of your doctor.