Medically reviewed by Allison Herries, RDN Melatonin is a naturally occurring hormone produced by a gland in the brain. It ...

Melatonin overdose is not common or typically life-threatening but there are questions about how much melatonin is too much. While low doses are recommended, adult doses of up to 5 milligrams (mg ...

You can overdose on melatonin which causes daytime sleepiness, dizziness, and headaches. Most people should not take more than 0.5 to 5 mg of melatonin at once. While melatonin is not addictive ...

You should start with a low dose of melatonin (0.5 mg) and gradually taper up according to your needs. You should never take more than 10 mg or you could experience nausea and other side effects.