The diet plays an important role in affecting the physical conditions of the human body. It also affects the pregnancy of women. Some foods can increase the probability of pregnancy, and some foods can decrease the probability. If women want to have children, they should avoid eating the foods which can decrease the probability of pregnancy.

According to the research in America, coffee can directly affect the female pregnancy. The researchers make the research among 104 women who want to have children. The result shows that it is easier for women who do not drink coffee every day to be pregnant than women who drink more than one cup of coffee every day. Therefore, the researchers advise that women who want to have children should reduce the intake amount of coffee.

Carrot contains abundant carotene, vitamins and other beneficial nutrients. According to the research result of some gynecologic experts in America, the excessive intake of carotene can cause amenorrhea and restrain the normal ovulation function of the ovary. Therefore, women should not too many carrots if they want to have children.

Liquor can also decrease the probability of pregnancy and cause the female sterility. The main composition of liquor is ethanol which can increase the density of catecholamine inside the human body. In addition, the development of testicle can be seriously affected and the structures of spermation function can be changed to cause the inadequate secretion of male sex hormone like stosterone. These phenomena can cause both the male sterility and the female sterility. Abnormal menstruation, amenorrhea and anerotism can be caused to affect the normal pregnancy of women.

Except coffee, carrot and liquor, other foods like garlic, sunflower seed and barbecued mutton can also cause the female sterility. The excessive intake of garlic can kill the male sperms. The protein contained in sunflower seed contains some certain compositions which can restrain the testicle to shrink the testicle and further affect the pregnancy. Eating barbecued mutton is a very common habit of people in northwest area of China. People find that the babies are usually weakly intelligent or freaky if their mothers like to eat barbecued mutton. According to the modern medicine, these mothers and their babies are both the victims of toxoplasma infection.

In short, some foods can cause the male or female sterility. Women who want to have children should avoid these foods to create good conditions for pregnancy.