To have a healthy baby, you can’t ignore pre-pregnancy nutrition, especially for men. Reasonable choice of food and good dietary habits for men who want to be a father has all the advantages and none of the disadvantages. 1, to ensure adequate quality protein. Protein is an important part of the cell, but also an important raw material for the generation of spermatozoa, reasonable supplementation of food rich in high quality protein is beneficial to the coordination of male endocrine function as well as improve the quantity and quality of spermatozoa. Foods rich in high-quality protein: deep-sea fish and shrimp, oysters, soybeans, lean meat, eggs and so on. Seafood is not only low in pollution, but also contains nutrients such as dha and eha that promote brain development and enhance physical fitness, which are very beneficial to expectant fathers. But not excessive intake. Protein substance intake is easy to destroy the body nutritional intake balance, resulting in vitamins and other substances intake is insufficient, and cause acidic body, very unfavorable to the conception. 2, reasonable supplementation of minerals and trace elements. Minerals and trace elements in the human body have the same important impact on male fertility. The most common are elements such as zinc and selenium, which are involved in the synthesis and transportation of testosterone in men, and at the same time help to improve the ability of sperm activity as well as reproductive physiological activities such as fertilization. Zinc regulates the functioning of the immune system in the body and improves sperm motility. Zinc deficiency in the body can cause a decrease in the number of sperm, an increase in the number of abnormal sperm, as well as reduced sexual and reproductive function, or even infertility; selenium deficiency can reduce the source of energy needed for sperm activity, making sperm motility decline. Higher zinc-containing foods are: shellfish, animal offal, cereal germ, sesame, shrimp, etc.; higher selenium-containing foods are: kelp, cuttlefish, shrimp, seaweed, etc.. 3, do not look down on fruits and vegetables. Men tend to disdain fruits and vegetables, that is the girl’s diet food. But do not understand the fruit and vegetables contain a lot of vitamins are necessary for male reproductive physiological activities. Some foods high in vitamins are very helpful in improving the quality of sperm viability. Such as vitamin a and vitamin e have delayed aging, slowing down the role of sexual function decline, but also on the generation of sperm, improve sperm activity has a good effect. Lack of these vitamins can often cause spermatogenesis disorder. Men if long-term lack of fruits and vegetables among the various types of vitamins, may hinder the normal development of the gonads and sperm production, so that the sperm reduce or affect the normal activity of sperm, and even lead to infertility. 4, moderate fat is also good. Sex hormones are mainly converted from fat cholesterol, cholesterol is an important raw material for the synthesis of sex hormones, fat also contains essential fatty acids needed for spermatogenesis, if the lack of, not only affects spermatogenesis, but also may cause a decrease in libido. Meat, fish, eggs contain more cholesterol, moderate intake is conducive to the synthesis of sex hormones. Try to eat less pork, you can choose more fish, poultry food, especially eat more deep-sea fish, deep-sea fish contains essential fatty acids, involved in the production and balance of hormones, beneficial to male reproductive health. 5, strictly abstain from smoking and alcohol. The number of normal sperm in smokers is reduced by 10%, and the rate of sperm aberrations has increased, the longer the smoking time, the more deformed sperm, the lower the sperm vitality. At the same time, smoking can also cause atherosclerosis and other diseases, more than 90% of smokers, poor blood circulation in the penis, penile erection slowed down. And excessive or long-term alcohol consumption can accelerate the decomposition of testosterone in the body, resulting in lower levels of testosterone in the blood of men, loss of libido, sperm deformities and impotence. Therefore, for the healthy birth of the next generation, you should try to quit smoking and prohibit alcohol.