1, look at the content of vitamin AD drops, children under the age of 1 years old with vitamin A is generally 1500IU/granule, the content of vitamin D is 500IU/granule; more than 1 year old children with children with vitamin A2000IU/granule, vitamin D700IU /pellet.

2, look at the solvent, different cod liver oil or vitamin AD drops, it is used in the solvent may be different fats and oils, corn, germ oil, soybean oil, peanut oil and so on, if your baby is allergic to the body, in this regard must pay attention.

Cod liver oil contains vitamins A and D, as well as vitamin AD drops, both of which can be good, are supplemented with vitamins A and D, the selection of the main according to the above two principles can be.