How many months should babies take cod liver oil? Cod liver oil is a nutritional supplement whose main ingredient is cod liver, which is rich in vitamins A and D. Especially for infants and young children, cod liver oil supplementation is even more important, because during this period, cod liver oil can help infants and young children obtain adequate nutrition, improve immunity, and promote growth and development. However, you also need to pay attention to the use of cod liver oil. The following will explain in detail how to correctly supplement cod liver oil for babies. 1. The function and dosage of cod liver oil. The first thing you need to know is that cod liver oil is not a panacea. Its main function is to help