Spermatozoa are not liquefied by eating foods rich in vitamins, trace elements and high protein foods to improve semen quality, as follows: 1, vitamin-rich foods: daily consumption including fruits such as lemons, oranges and other acidic fruits rich in vitamins; 2, trace element-rich foods: including zinc and selenium foods can improve semen quality, more zinc-containing foods such as coarse noodles, oat noodles, etc., more selenium-containing foods such as seafood kelp, nori, shrimp skin, etc.; 3, high protein foods: such as milk, lean meat and soy products, etc.