Can I eat longan with a cold. Of course you can eat it, but it depends on what kind of cold it is, some colds cannot eat longan, wind-cold colds can eat longan, but eat it sparingly. Because longan, also known as cinnamon, is rich in glucose, sucrose, protein, and high iron content, it can promote the regeneration of hemoglobin while improving heat and nutrition, and achieve the effect of blood replenishment. In addition to being beneficial to the whole body, longan is particularly effective for brain cells, eliminating fatigue and strengthening immunity. Patients with cold and flu are suitable to eat longan, which has a certain effect on reducing the symptoms of wind and cold and can dispel the cold. However, longan should not be eaten too much, eating too much is not conducive to recovery from cold and may aggravate the symptoms of cold, especially when the cold and fever is not easy to eat nourishing longan.