Pregnant women can moderate intake of flaxseed oil. Flaxseed oil is rich in vitamins and polysaccharides, which are antiviral, antithrombotic, antioxidant and hypolipidemic. Moderate consumption of flaxseed oil is good for pregnant women and fetuses. Consumption of attention to low-temperature cooking, high temperature will destroy the nutrients, and after use to avoid open mouth placed, the nutrients in the air is easy to be oxidized. Linseed oil is rich in linolenic acid can be converted into DHA, which helps the fetal brain, retina and other growth and development. But pregnant women should moderate intake of flaxseed oil, excessive intake may cause high blood cholesterol, in addition to flaxseed oil has the effect of promoting gastrointestinal motility, may aggravate the situation of diarrhea. During pregnancy, we should pay attention to a balanced diet, which will help the growth and development of the fetus.