As we all know, walnut is a good brain tonic and is known as brain gold. Especially pregnant women should eat walnuts. This is conducive to the baby's brain development. In order to have a smart baby, many expectant mothers will consciously eat more walnuts during pregnancy. Some pregnant women eat 10 to 20 walnuts every day, and some can eat half a catty of small walnuts at a time. However, since then, because of the high fat content in walnuts, eating too much will inevitably lead to obesity due to excessive calorie intake, which will affect the normal blood sugar, blood lipid and blood pressure of pregnant women. Therefore, we should pay attention to the following points when eating walnuts: 1. Take it in moderation for a long time; 2. Some people like to peel off the thin brown skin on the surface of walnut kernel, which will lose some nutrition, so they take this thin skin together with tonic. Walnut is very angry and contains a lot of oil. Eating too much will make people get angry and get sick. People who get angry and have loose bowels should not eat it.