What are the risks of taking too much melatonin?

Dr. Mehmet Oz, MD
Cardiology (Cardiovascular Disease)
Melatonin is a natural, nonaddicting hormone supplement that assists with sleep. Millions of people in the United States take it to get a good night’s sleep after having difficulties falling asleep or staying asleep. However, beware! Melatonin may be harmful to your sleep if taken inappropriately.

Melatonin is naturally produced in your brain. It tells your body that it’s nighttime and it’s time to go to bed. Melatonin is a powerful hormone. Many may mistake its power for that of a sleeping pill and feel compelled to take more for better sleep. However, at the wrong dosage, melatonin may actually destroy your sleep cycle. Too much melatonin at one time may also cause headaches, nausea, dizziness, or irritability.
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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.