Influenza A is a respiratory infectious disease caused by H 1N 1 virus, mainly characterized by fever, cough and fatigue. In terms of diet, patients are advised to follow the following principles:

1. Drink plenty of water: maintaining adequate water intake can help the body excrete metabolites and toxins.

2. Eat in moderation: adjust your diet according to your appetite and physical condition, and don't overeat or diet.

3. avoid irritating food: spicy and greasy food will increase the burden on the digestive system and is not conducive to rehabilitation.

4. Increase nutritional intake: Eating more fresh vegetables, fruits and meat rich in vitamin C and protein is good for health.

On the issue of cold/hot food, Chinese medicine theory holds that there are yin and yang in the human body, which interact with the external environment. Therefore, during a cold, we should try to avoid eating a lot of cold or cold food (such as watermelon and water chestnut), but we don't have to avoid it completely. If you want to eat these foods with strong coolness/coldness, it is recommended to control the amount appropriately and take them together with other meals that warm the stomach. At the same time, we also need to pay attention to personal taste and physical reaction, and make adjustments according to the actual situation.