Medically reviewed by Allison Herries, RDN Melatonin is a naturally occurring hormone produced by a gland in the brain. It regulates your circadian rhythm (the body's natural 24-hour internal clock) ...

In most cases, 10 mg of melatonin is too much melatonin ... A 2023 study found that of 25 brands of melatonin gummies, a product often aimed at children, most had higher than the declared amount ...

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 ...

Although many studies were carried out to evaluate the role of melatonin in GERD based on its effect in alleviation of GERD symptoms only, the review of literature showed that no previous studies ...

However, combining the two can make melatonin supplements more potent. As a result, you might feel tired, sluggish, or have trouble waking up in the morning. With around 25% of women dealing with ...