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 harmony of male endocrine performance 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 contagion levels, but also contains nutrients such as DNA that enhances brain development and physical fitness, which is very favorable to expectant fathers. But not excessive intake. Protein substances intake of the right amount of easy to damage the body nutrient intake balance, resulting in vitamins and other materials intake is insufficient, and cause acidic body, very unfavorable to the conception. 2, reasonable to make up for minerals and trace elements. The minerals and trace elements in the body have the same major impact on male fertility. The more common is zinc, selenium and other elements, they participate in the male testosterone synthesis and transport movement, while assisting in the progress of sperm activity ability and fertilization and other reproductive physiological activities. Zinc in the body is able to modulate the function of the immune system and improve sperm motility. The lack of zinc in the human body will cause a reduction in the number of sperm, the number of abnormal sperm increases, as well as sexual and reproductive function, or even infertility; selenium will reduce the sperm activity required for the origin of energy, so that the sperm’s vitality energy landing. Higher zinc-containing foods are: shellfish, animal offal, cereal germ, sesame seeds, shrimp, etc.. Higher selenium-containing foods are: kelp, cuttlefish, shrimp, seaweed and so on. 3, do not underestimate the fruits and vegetables. Men tend to disdain fruits and vegetables, thought that is the girls’ diet food. But do not understand that fruits and vegetables contain a large number of vitamins are necessary for male reproductive physiological activities. Some of the food containing high vitamins, to improve the quality of sperm viability has great sponsorship. Such as vitamin a and vitamin e have delayed aging, slowing down the role of sexual function, but also on the birth of sperm, improve sperm activity with good results. Lack of these vitamins can often cause sperm production obstacles. Men if the long-term lack of fruits and vegetables in 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 important by the fat cholesterol conversion, cholesterol is an important raw material for the synthesis of sex hormones, fat also contains essential fatty acids needed for sperm production, if the lack of, not only affects the generation of spermatozoa, 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, can take more fish, poultry food, especially eat more deep-sea fish, deep-sea fish contains essential fatty acids, intervene in the hormone generation and balance, beneficial to male reproductive health. 5, strict abstinence from smoking and alcohol. Smokers in the number of malformed sperm decreased by 10%, and sperm aberration rate has increased, the longer the smoking time, the more malformed sperm, the lower the sperm viability. At the same time, smoking can also cause atherosclerosis and other diseases, more than 90% of smokers, penile blood circulation is poor, penile erection speed is slowed down. Excessive or long-term alcohol consumption can accelerate the decomposition of testosterone in the body, resulting in a decline in the level of testosterone in the blood of men, presenting a loss of libido, sperm deformities and impotence. Thus, for the healthy birth of the next generation, should try to quit smoking and ban alcohol.