1, eat more food containing zinc, selenium trace elements For men preparing for pregnancy, the quality of sperm and zinc, folic acid two nutrients are more related. Appropriate supplementation of zinc will be beneficial to sperm quality, for example, you can eat more zinc-containing seafood or pork liver, kidney, nuts and other foods; supplementation of folic acid, you can directly eat the regular folic acid sold on the market or eat folic acid-rich foods such as spinach and other vegetables. 2, eat more food containing high quality protein, sperm metabolism depends on the nutrients in the male body, and the most basic nutrient is protein. Proper supplementation of foods rich in high quality protein is beneficial to the coordination of male endocrine function and improvement of sperm quantity and quality. 3, eat more food rich in wheat germ lack of vitamin E can lead to male sex hormone secretion is too small. It is recommended to eat foods rich in wheat germ, corn, whole wheat flour, etc., which can supplement the B vitamins and vitamin E. 4, intake of appropriate amount of fat The human sex hormones are mainly converted from the cholesterol in the fat, and the fat contains fatty acids needed for sperm production. If the lack of, not only affect the generation of sperm, but also may cause a decline in libido. Meat, fish, eggs contain more cholesterol, moderate intake is conducive to the synthesis of sex hormones. However, less pork should be eaten, and more fish and poultry food can be chosen, especially more deep-sea fish. In short, to improve male fertility, to all aspects of the comprehensive consideration, eat more food that should be eaten, do not eat unsuitable food, but also adhere to good living and eating habits, appropriate physical exercise, have a healthy body.