During a cold, it is advisable to eat fewer chestnuts.

Although chestnuts are rich in proteins, vitamins, and carbohydrates, and can provide the necessary substances for the body, especially high in carbohydrates, providing the body's energy, it is important to note that chestnuts are warm in nature. Eating too many during a cold can possibly induce symptoms of 'internal heat', leading even to sore throats, which is not conducive to alleviating the condition.

Furthermore, during a cold, the patient’s digestive function generally declines, particularly in those with gastroenteric colds, who may also experience significant nausea, abdominal bloating and pain, diarrhea, etc. Consuming too many chestnuts at this time can potentially cause an increase in abdominal symptoms like bloating and nausea, which are not conducive to recovery and might worsen the patient's appetite. Therefore, during a cold, it is recommended to avoid spicy, stimulating, and hard-to-digest foods.