Nutritional value of walnut
Walnut is rich in nutrition, containing protein15-20g, fat 60-70g, carbohydrate10g per 100g, and contains various trace elements and minerals such as calcium, phosphorus and iron, as well as various vitamins such as carotene and riboflavin. According to the determination, 500 grams of walnut kernel is equivalent to the nutritional value of 2,500 grams of eggs or 4,750 grams of milk, and the contents of calcium, iron, vitamin B 1 and vitamin B2, which are especially beneficial to brain nerve cells, are relatively high.
The benefits of walnuts to pregnant women and babies
Walnut contains high linoleic acid, which can synthesize DHA in the body and is considered as an essential fatty acid. If pregnant women don't have enough linoleic acid supply, the fetus can't form a healthy brain, and once the nervous system is formed, it can't be repaired. As a result, the chances of attention deficit, hyperactivity disorder, impulsiveness, anxiety, temper tantrum, poor sleep and poor memory and mental disorders in adulthood are six times higher than those of ordinary people.
The walnut oil in walnut kernel is rich in linoleic acid and DHA, which are the necessary nutrients for the development of baby's brain and visual function. Trace elements such as zinc and manganese are the key components of pituitary gland. Walnut oil is helpful to children's brain development, intelligence and memory. It also has the functions of invigorating qi and nourishing blood, warming lung and moistening intestine. The structure of its nutrients is very beneficial to the brain development of embryos. Chewing walnut kernel can also prevent dentin hypersensitivity. However, walnuts are very angry and contain a lot of oil. Eating too much will make people get angry and get fat. Therefore, pregnant women should eat 2 ~ 3 walnuts every day.
The best time to eat walnuts during pregnancy
Generally speaking, it is better to start eating when you are pregnant for three or four months, that is, from the 26th week of the fetal period to the second year after birth, which is a very important stage for the development of fetal brain and retina. However, when choosing walnuts, I suggest that you don't choose walnuts with white color, but try to choose walnuts with reliable quality and natural skin, so that it is safer to eat.
When is the best time to eat and how to eat every day?
Generally speaking, it is best to eat walnuts raw after peeling them between breakfast and lunch, or between lunch and dinner. You can choose to make some snacks and eat them directly at two meals, or grind them into steamed buns mixed with brown sugar, or cook porridge or make peach cakes. This can better promote the expectant mother's absorption of walnut nutrition.