Men can eat more vitamins, according to their own situation under the guidance of the doctor reasonable supplementation, such as vitamin A, B vitamins, vitamin C, vitamin D, vitamin K and so on. 1. Vitamin A: belongs to the anti-dry eye disease vitamin, usually found in cod liver oil, green vegetables, animal liver, etc., if the patient lacks vitamin A easy to suffer from night blindness. 2. B vitamins: the vitamin is categorized more, such as vitamin B₁, also known as anti-neuritis factor, anti-foot fungus factor, etc., mostly found in grains, meat, soy and other foods. And patients who lack vitamin B₂ are prone to diseases such as mouth ulcers. 3. Vitamin C: This vitamin is ascorbic acid resistant and mostly found in fresh fruits and vegetables. 4. Vitamin D: preventing and treating rickets, it is also a vitamin that can be synthesized after the body’s ultraviolet irradiation, mostly found in yeast, dairy products, egg yolk, cod liver oil and other foods. 5. Vitamin K: mainly from green leafy plants or animal products, such as liver, spinach and other foods. It is recommended that men who are deficient in the corresponding vitamins need to use medication under the guidance of a doctor; if they are not deficient in vitamins, they can maintain a balanced diet.