lecithin
Adequate lecithin can improve the speed and accuracy of information transmission and is of special value to the developing fetal brain. Pregnant mothers may wish to take it from soybeans, egg yolks, walnuts, nuts, meat, animal offal and other foods.
iodine
Fetal development (including brain development) depends on maternal supply of adequate thyroxine, and iodine is an important raw material for the synthesis of thyroxine. The intellectual diet during pregnancy should also include foods rich in iodine such as kelp, laver and jellyfish.
nut
Dried fruit is rich in unsaturated fatty acids, which can provide sufficient "building materials" for fetal brain development.
walnut
Rich in brain-nourishing phospholipids, it can be used as the first choice snack. Eat raw or add appropriate amount of salt water to cook, or cook porridge with barley and chestnuts.
peanut
Protein, with a content as high as 30%, is as nutritious as eggs, milk and lean meat, and is easily absorbed by human body. You can stew it with soybeans, or put it in porridge or lotus seed rice, but you can't fry it.