what is melatonin
Melatonin is a hormone made by the pineal gland, a small gland in the brain. Melatonin helps control your sleep and wake cycles. Very small amounts of it are found in foods such as meats, grains, fruits, and vegetables.You can also buy it as a supplement.uring health exams, tell your doctor if you are taking melatonin. And tell your doctor if you are having trouble sleeping (insomnia), because it may be related to a medical problem. In adults, melatonin is taken in doses from 0.2 mg to 20.0 mg, based on the reason for its use.