Whether you can eat seafood after vaccination depends on when you eat it. If it is within 1-3 days after vaccination, it is not recommended to eat seafood, but if it is about 1 week after vaccination, as long as the vaccine does not produce obvious side effects, or you are not allergic to seafood, you can naturally eat it. The reason why it is not recommended to eat seafood within 1-3 days after vaccination is for the following two reasons: 1. Confusing vaccine adverse reactions: whether inactivated vaccine or mRNA vaccine, it is a foreign substance to the body and will cause a certain stress reaction in the organism, if it is not sensitive to the vaccine, it may only appear redness, swelling, heat, pain and other sensations around the needle holes, but if it is more sensitive to the substances contained in the vaccine, it may If you are not sensitive to the vaccine, you may only experience redness, swelling, heat and pain around the needle hole. There are many seafoods and inconsistent practices, which may cause allergy, food poisoning and diarrhea, and it is easy to confuse them with adverse reactions to vaccines after the appearance of related symptoms. The reaction to the vaccine occurs mostly within 1-3 days, and it is not recommended to consume seafood during this period. After 3 days, if discomfort occurs, in most cases it can be judged to be caused by seafood, which is beneficial to the doctor’s diagnosis; 2. aggravate discomfort: seafood food itself is easy to cause allergic reactions, especially for people with allergies. Once an allergic reaction occurs, it is easy to aggravate the adverse reaction of the vaccine and make the condition more complicated. If there is no allergic reaction per se, only a mild vaccine reaction usually lasts for 2-3 days, no special treatment is needed, and the symptoms can be relieved naturally. However, when an allergic reaction occurs, the original vaccine reaction will be aggravated and the allergic reaction will be aggravated by the adverse reaction caused by the vaccine injection, which affect each other and are mutually beneficial, making the recovery time of symptoms longer. If a serious allergic reaction occurs, you should go to the hospital immediately. Therefore it is still recommended to avoid seafood for 3 days after the completion of vaccination. After vaccination, in addition to avoiding seafood, you should also pay attention to a light diet and avoid spicy and stimulating foods.