Fructose is a natural sugar found in many fruits and vegetables. It has a sweet taste and is used as a sugar substitute when the patient has fructose intolerance. However, despite its benefits, fructose can also cause some side effects such as fatigue, headache and stomach upset. In some cases, high levels of fructose can lead to a serious condition called fructosemia or hyperfructosemia.
Fructosemia or fructosenuria is a rare hereditary disease that is characterized by excessive intake of fructose into the body due to a violation of its metabolism. Fructose