Cod liver oil is rich in vitamin A and vitamin D. Among them, vitamin A is an important nutrient element, and enhance the body’s resistance and synthesize the photoreceptor in the retina of the eye; and vitamin D can help calcium ions through the cell membrane, promote the absorption of calcium, therefore, cod liver oil for the baby’s benefits, especially in the baby to take calcium supplements, it should be supplemented with cod liver oil. How much cod liver oil should babies eat every day Research has found that babies need 10 micrograms (equivalent to 400 international units) of vitamin D and 400 micrograms (equivalent to 1,330 international units) of vitamin A every day, and if they eat more, they will be stored in the liver and subcutaneous fat, and if they overdose, i.e., if vitamin D exceeds 20-25 micrograms (800-1,000 international units) and vitamin A exceeds 2,000 micrograms (6,670 international units). 2,000 micrograms (6,670 international units) can cause poisoning. How old is the baby to start supplementing cod liver oil? The content of vitamin D in daily food is very small, and there are only 10 international units of vitamin D per liter of breast milk at the most. Even if the mother takes cod liver oil, the maximum amount of vitamin D per liter of breast milk will not be more than 70 international units, which is far from meeting the baby’s daily intake requirements. Therefore, you should start supplementing cod liver oil from 15 days after your baby is born. At first, one drop can be taken every day. With normal stools, it can be increased to 2 drops a day after a week. Gradually increase the dosage until you take one capsule a day. If the baby does not have diarrhea and other uncomfortable symptoms after taking it, it can be taken until two weeks old. How to buy cod liver oil Currently on the market, there are three main categories of cod liver oil products: drug approval number, health number and food number. Drug approval number is a product that can be marketed only after clinical control, the production process of health number is not as strict as that of drug approval number, and the requirements of food number are lower, as long as it meets the food hygiene standards, it can be marketed. Mom shopping, should see the batch number. In addition, it should be noted that the efficacy of cod liver oil, deep sea fish oil and shark liver oil is different. Cod liver oil mainly provides vitamin D, deep sea fish oil mainly contains DHA (brain gold), DHA can promote the development of the nervous system and retina, and shark liver oil can improve human resistance, three kinds of cod liver oil can not replace each other.