What is the role and function of vitamin D3

 Vitamin D3 is mainly synthesized by the human body itself. 

The skin of the human body contains a special cholesterol, which will be converted into vitamin D3 after exposure to sunlight. 

If children can receive more than 46 hours of sunlight, they can synthesize enough vitamin D3 on their own, and do not need to supplement. 

Adequate vitamin D3 can maintain the normal level of citrate in the body, which can prevent rickets.

The role and function of vitamin D3 in infants:

1. Vitamin D3 can promote the absorption of calcium and phosphorus by the human body, so that the levels of plasma calcium and phosphorus can reach saturation, thereby preventing and treating rickets. stronger.

2. Vitamin D3 can increase the absorption of phosphorus through the intestinal wall, and then increase the reabsorption and absorption of phosphorus through the renal tubules to prevent phosphateuria.

3. Vitamin D3 for babies can increase the development of bones, reduce the absorption of calcium in the intestines and kidneys, and prevent the loss of amino acids through the kidneys.

The correct way to eat baby D3:

1. Appropriate vitamin D3 supplementation can be started about half a month after the baby is born. It is best to take vitamin D3 after the meal to ensure that the stomach is in a non-emptying state to avoid nausea and stomach pain and other uncomfortable symptoms.

2. Avoid excessive supplementation of vitamin D3, which will cause adverse consequences. It depends on the instructions for taking the medicine and the doctor's order.

3. The lack of  vitamin D3  produced by the baby can easily lead to calcium deficiency. Under normal circumstances, it needs to be supplemented until the age of two. If it is two years old in winter, it should be extended for several months.