The ingredients in the New Crown vaccine do not react with watermelon in the clinic, so watermelon can be consumed in moderation after vaccination, but chilled watermelon is not recommended. Due to the different tolerance level of each individual to the New Crown vaccine, there will be different degrees of adverse reactions. Some of the vaccinated people will have redness, swelling, hard core, pain at the vaccination site, or dizziness, headache, nausea, vomiting, diarrhea and other symptoms, which can be easily caused or aggravated by consuming chilled watermelon. For people who suffer from gastrointestinal diseases or children, the elderly and other gastrointestinal vulnerability, sensitive people, after consuming more watermelon is also prone to frequent urination, abdominal pain, diarrhea. Symptoms of discomfort after eating watermelon can be easily confused with adverse reactions after vaccination, and may aggravate the adverse reactions of the vaccine, if the situation is serious enough to require medical attention, it may affect the doctor’s diagnosis of the disease, so you can eat watermelon in moderation after the new crown vaccine, and avoid eating too much or eating ice-cold watermelon. In addition, after receiving the new crown vaccine, diet is also recommended to light, easy to digest food, avoid spicy, stimulating, greasy food, such as chili peppers, onions, leeks, garlic, fries, fried cake, etc., to avoid aggravating the digestive burden of the stomach and intestines; should also be prohibited from eating hairy food, such as lamb, seafood, etc., to avoid increasing the risk of triggering uncomfortable physical symptoms.