Baby can eat walnuts, but eat less. Because of the high fat content in walnuts, excessive consumption will lead to indigestion. The main components of walnut are plant protein, unsaturated fatty acid, 18 amino acid, lecithin, riboflavin, carrot, carbohydrate, vitamin E, vitamin B 1, vitamin C and trace elements such as calcium, zinc, manganese, magnesium, iron and phosphorus. Eating walnuts regularly can improve human immunity; Lecithin can enhance memory, strengthen brain, improve intelligence, soften blood vessels and reduce blood lipid; Zinc, magnesium and manganese can tonify kidney and solidify sperm; Vitamin E, vitamin C and iron make the skin rosy, fair, delicate and smooth; Calcium can promote children's physical development. It can be ground into powder and put into rice paste and porridge, which is convenient and easy to absorb.