Ice-cream can be eaten in moderation after receiving the new crown vaccine, but care should be taken not to over-consume it to avoid triggering or aggravating gastrointestinal adverse reactions and causing gastrointestinal discomfort. After vaccination with the new crown vaccine, the body may experience a series of adverse reactions, including systemic adverse reactions, such as mild fever, mental disorientation, etc., but there may also be gastrointestinal discomforts such as abdominal pain, diarrhea, etc., but the probability of occurrence is relatively low. There is usually no requirement not to eat ice-cream after vaccination with the new crown vaccine. Normally eating ice-cream will not affect the functioning of the new crown vaccine in the organism, and therefore it is considered to have no effect on the vaccine itself. However, excessive consumption of ice-cream may cause gastrointestinal discomfort, which is not easily distinguishable from vaccine-induced adverse reactions, and therefore it is recommended that ice-cream should only be consumed in moderation after vaccination with the new crown vaccine.