Lychee eat too much will be poisoned that is not scientific, lychee in no toxic substances, according to limited research shows mainly contains glucagon or secondary blood sugar metabolism disorders caused by hypoglycemia in more cases. 1. lychee contains glucagon, excessive intake may appear dizziness, weakness, pallor, palpitations, sweating and other symptoms, excessive consumption of lychee after the adverse reactions need to be timely medical attention. 2. Lychee itself is not toxic, poisoning is mainly a hypoglycemic reaction, lychee sugar containing fructose will promote insulin secretion, but need to be converted into glucose to be absorbed, the body’s enzymes are rationed, if you eat a large number of lychee in a short period of time, the conversion of fructose in the process of hypoglycemia will occur in response to chest tightness, dizziness, panic, nausea and other symptoms. After eating a large number of lychee adverse symptoms if more serious, need to go to the nearby hospital in time for timely treatment, to avoid because of prolonged hypoglycemia and affect the health of the body, serious and life-threatening.