The reason why you don’t eat much in late pregnancy and still gain weight is because the fetus grows faster in late pregnancy, the activity level of the pregnant woman is less and the edema caused by water and sodium retention in late pregnancy is also more obvious. Fetal growth and development in the second trimester is relatively fast, basically linear growth, this time although not eat much, but the fetus grows fast, pregnant women belly is bigger, looks fatter. The uterus is larger in the second trimester, the body is more awkward and less active, and what you eat is not consumed through activities, so the body absorbs more, and your weight still grows. Estrogen levels are higher during pregnancy, estrogen will lead to water and sodium retention, the body will appear puffy phenomenon, to the second trimester is particularly significant, so the second trimester of pregnancy, although you do not eat a lot but looks like the body is fatter. Diet in late pregnancy should pay attention to light, eat less high-calorie, greasy food, half an hour after meals can be appropriate to walk, the need for regular monitoring of blood pressure and blood glucose, there is a problem in a timely manner to consult the examination and treatment.