After vaccination, attention should be paid to a reasonable diet, cultivate healthy eating habits, and eat more fresh fruits and vegetables and grains and cereals, which can supplement vitamins, proteins and other nutrients. At the same time, attention should also be paid to limiting diets that may increase inflammatory reactions or cause excitement, as well as foods with allergy risks such as seafood: 1. Recommended food: The diet should be light and nutritionally balanced after vaccination. The immune excitation process will increase vitamin consumption, so attention should be paid to supplementing vitamin-rich vegetables and fruits such as carrots, tomatoes, kiwis, hawthorn, strawberries, citrus, etc. It is also necessary to appropriately supplement proteins such as soybeans, freshwater fish, and miscellaneous grains such as black rice and buckwheat to replenish the nutrients required by the body, but the intake of beef and mutton needs to be limited to avoid aggravating the inflammatory reaction; 2. Avoid: foods that have caused allergic reactions, such as some people are allergic to mangoes, milk and eggs, and should be avoided after vaccination. Seafood is easy to induce allergies, so even for people who usually have no obvious allergy to seafood, they should avoid eating it as much as possible. You should also avoid alcohol, fried and smoked foods, and processed red meat products, which are rich in pro-inflammatory factors and can aggravate adverse reactions. Strong tea, coffee, etc. are likely to cause excitement and even insomnia, affecting the immune status, and are not recommended. Food cooking process should be less oil and sugar, avoid spicy stimulation to help the body recover.