Pregnancy is best not to eat or eat less fried things, after deep-fried food nutrient content completely or partially lost, after eating can not provide too much nutrients for the body. Because of the high fat content of fried food, the feeling of satiety is relatively strong, affecting the eating of other foods, which indirectly affects the intake of nutrients. Deep-fried food is difficult to digest and absorb, easy to increase the burden on the gastrointestinal tract, may cause indigestion. After deep-frying, food is prone to starch pasting, protein denaturation and other physicochemical changes, resulting in a large amount of trans fatty acids, which can easily affect essential fatty acids and other normal biochemical reactions after entering the body, and have certain adverse effects on the health of pregnant women. Long-term consumption of fried food may lead to the lack of essential fatty acids in the body and affect the normal development of the fetus.