Nearly 30% of Americans say insomnia has a negative impact on their daily lives. It’s no wonder then that a growing number of people are reaching for melatonin supplements to help solve their sleep problems. Marketed as “all-natural” and sold at practically every grocery and drug store, melatonin seems harmless almost because it’s so ubiquitous. But experts point to some concerns that may lead you to reconsider how you take it—or whether you should at all.
