Night terrors, sweating, and occipital protrusions may be indicative of a calcium deficiency in your child. But just supplementing calcium is not enough, sometimes supplementing vitamin D is more important than calcium. Because vitamin D can not be obtained from food, in general, 2-year-old children have to adhere to vitamin D supplementation, normal children after 1 month, we must supplement vitamin D 400-600 units per day; preterm children 2 weeks to supplement, and incremental increase in the first three months of 600-800 units, and later 400-600 units. Zhou Zheng, Department of Pediatrics, The First Affiliated Hospital of Henan College of Traditional Chinese Medicine 1 Vitamin D-need for growth. However, excessive calcium supplementation can increase gastrointestinal burden, showing anorexia, constipation; at the same time, inhibit the absorption of iron, zinc, etc., so that the decline in immunity, slow growth, anemia and other manifestations. At the same time, it can cause premature calcification of the bones, affecting height. 2. Vitamin A, the patron saint of the eyes, a great help to the development of young children’s eyes, teeth ‘bones, hair also help, affecting the normal functioning of cells. Involved in the visual process, life in a variety of red, yellow and green vegetables and fruits contain. 3. Vitamin B2, a growth vitamin, plays a big role in the neurological function of young children, such as the lack of which can lead to poor development of young children. Milk, liver, fish, eggs, green leafy vegetables are high in vitamin B2. It can lower the level of homocysteine and reduce the toxic stimulation of the vascular endothelium. 4. Vitamin C, a good helper for health, can promote the absorption of iron, activate cells and intercellular links, promote the synthesis of collagen in the human body, the human body teeth, bones, tissue cells are beneficial. In addition, vitamin E vegetable oil content, known abroad as the miracle pill of life, can delay cell oxidation. Vitamin K can prevent osteoporosis, exist in natural green plants. Vitamin B6 white meat content, it is involved in amino acid, glycogen, fatty acid metabolism, involved in various physiological functions of the nervous system and so on!