Last year, Kristen Bell, the voice of Anna in “Frozen,” said that she found gummies containing melatonin helped her young children sleep more peacefully. A recent government report that says last year there was a 500% increase in the number of poison center calls involving kids eating melatonin gummies. We hope her kids dodged that bullet.

Melatonin is a brain hormone produced in response to darkness. It helps control a person’s circadian rhythms (24-hour internal clock) and stimulates sleep. And from 2012 to 2021, a Centers for Disease Control and Prevention study found that more than 4,000 children were hospitalized after ingesting melatonin (either accidently or intentionally) and two died while at home.

Health pioneer Michael Roizen, M.D., is chief wellness officer emeritus at the Cleveland Clinic and author of four No. 1 New York Times bestsellers. His next book is “The Great Age Reboot: Cracking the Longevity Code for a Younger Tomorrow.” Do you have a topic Dr. Mike should cover in a future column? If so, please email