Suggestion: The growth rate of children is different throughout the year. Children grow fastest in spring, so spring is the time for children to supplement calcium. Calcium supplementation should be combined with dietary supplements and medicinal supplements. For dietary supplements, you can eat more foods rich in calcium, such as milk, kelp, dried shrimps, dried shrimps, oysters, fish, beans, peanuts, sesame seeds and vegetables (water spinach, cabbage, spinach), etc. The first recommendation is milk. Milk contains high calcium and is well absorbed by the human body. But according to statistics, about a quarter of Orientals are intolerant to lactose in milk, which is manifested by bloating, diarrhea, vomiting, and crying after eating milk. The symptoms are more obvious the fresher the milk. If your baby is lactose intolerant, you can switch to lactose-free milk powder or soy products. Calcium supplements should be easy to absorb. The absorption rate of calcium gluconate and calcium lactate is about 25~30%; oyster calcium is difficult to absorb and has low calcium content, so the absorption rate is very low; calcium carbonate has a higher absorption rate, up to more than 35%; calcium amino acid is a chelate Calcium is expensive, has low solubility and is difficult to absorb, so it is recommended to choose calcium carbonate, calcium gluconate or calcium lactate preparations. Relatively speaking, liquid calcium is easier to absorb than solid calcium tablets. When taking calcium supplements, you should also note that different ages require different amounts. We often hear parents say, "I just let my children bask in the sun to supplement calcium" or "Take cod liver oil to supplement calcium." They mistakenly think that this can supplement calcium. In fact, these two can only promote the absorption of calcium. If the body How can we promote absorption if there is insufficient calcium? "Ultraviolet rays in the sun can convert vitamin D2 in the human body into active vitamin D3. Vitamin D3 can promote the body's absorption of calcium in the intestines. The main components of cod liver oil are fat-soluble vitamins A and D, which can promote intestinal absorption of calcium." It plays a role in calcium absorption and metabolism. Cod liver oil should not be eaten for a long time, otherwise it is easy to be poisoned. Animal liver, fish meat, and egg yolk are rich in cod liver oil. If these substances are included in the daily diet, children do not need to supplement with cod liver oil for a long time. For children in the growth and development period, it is enough to supplement for one month each in spring and autumn. Spring is the golden season for bone growth. For example, the human body is like a bank, and calcium is easy to absorb. Just like money, only by continuously depositing it in advance can you avoid making ends meet. Autumn has many seafood, rich fruits and vegetables, and many sources of calcium. It is a good season for calcium supplements. In addition, it is best to give children calcium supplements for breakfast in the early morning. Calcium supplementation is easier for the body to absorb in the second half hour or one hour, preferably at five or six o'clock in the afternoon or after dinner.