The baby’s hair is mainly related to genetic factors, if the father and mother’s hair is thicker, the baby’s hair will not be particularly small, so it mainly depends on genetic factors. Some foods are rich in nutrients, rich in DHA, to promote the baby’s hair growth is also an auxiliary role. 1, black sesame: black sesame is rich in vitamin E and a variety of trace elements, such as calcium, iron, selenium, copper, etc., and research has found that black sesame water extract can promote the expression of tyrosinase, can increase the body melanin, and conducive to hair growth; 2, nuts: nuts contain a large number of nutrients that have a certain effect on the black density of the hair. But in moderation, not too much, may cause obesity; 3, high protein foods: such as milk, deep-sea fish, soy products, eggs and other foods, the main body of the hair is a keratinized protein, the daily intake of sufficient protein for hair growth is beneficial. During pregnancy, you should have a reasonable diet to ensure a balanced nutritional intake, do not picky or partial food. Do not over-consume to avoid problems such as obesity and indigestion during pregnancy.