New Study Raises Concerns About Long-Term Melatonin Use
Recent research on melatonin, a common sleep aid, has alarmed some scientists regarding its extended use. An analysis involving over 130,000 adults with insomnia from various countries indicates that those prescribed melatonin for more than a year face significantly higher health risks.
Key Findings
- Long-term melatonin users had an 89% increased risk of heart failure over a five-year period.
- They were twice as likely to die from any cause compared to individuals not using melatonin.
Important Clarifications
The findings have not yet undergone peer review and do not alter current health guidelines. This does not confirm a direct cause-effect link between melatonin and serious health problems.
“What the results do suggest is that longer-term uses of melatonin need to be studied further to ensure they are safe.”
Melatonin remains the fourth most popular natural supplement in the United States and is generally regarded as safe for short-term use, typically one to two months, especially in individuals who are not pregnant or breastfeeding.
Research Gaps and Recommendations
There is limited data on the effects of melatonin beyond the short-term, prompting calls from some researchers to explore the long-term safety of this increasingly popular supplement. This new analysis was shared at the American Heart Association's Scientific Sessions.
“Melatonin is typically considered safe and well-tolerated for short-term use among those who are not pregnant or breastfeeding.”
Related: One dietary supplement was shown to reduce aggression by up to 28%.
Author’s summary: While melatonin is widely used and deemed safe short term, emerging evidence suggests a need for more research on its potential long-term heart risks.