There is no need for children to take walnut oil. Although walnut oil has the effect of strengthening the brain and kidney, which is good for children’s brain health, but because of the high fat content in walnut oil, giving it to children in excess will cause diarrhea and indigestion and other symptoms. Children usually only need to drink more milk and add supplementary food appropriately. It is not necessary to give children walnut oil because milk and complementary foods can provide children with the necessary trace elements, minerals, sugars, proteins and so on. Children are young and do not need to eat walnut oil, and if they do, they should eat it in small amounts.