Common Supplement Shows Concerning Link to Heart Failure

Common Supplement Shows Concerning Link to Heart Failure

New research on a widely used sleeping aid has raised concerns among scientists about its long-term effects. An analysis involving more than 130,000 adults with insomnia from multiple countries suggests that those prescribed melatonin for over a year face increased health risks.

Key Findings

The findings are preliminary and do not change current health recommendations. They do not necessarily mean that melatonin causes dangerous effects.

Melatonin, the fourth most popular natural supplement used by adults in the US, is generally considered safe for short-term use (1 to 2 months), especially for those who are not pregnant or breastfeeding.

Implications and Recommendations

The study highlights the need for further research on long-term melatonin usage to properly assess its safety. Despite its widespread popularity, there is limited data on effects beyond short-term use, a gap that researchers urge to fill.

The new research was presented at the American Heart Association's Scientific Sessions.

Related Insight

Another dietary supplement has been shown to reduce aggression by up to 28%, indicating the complex effects supplements can have on health.

Summary: Preliminary research suggests that melatonin use beyond one year may increase risks of heart failure and mortality, underscoring the need for further long-term safety studies.

more

ScienceAlert ScienceAlert — 2025-11-07