Melatonin Warning: Study Links Long-Term Use to Heart Failure Risk | NewsNation Health Alert (2025)

Here’s a shocking revelation that might keep you up at night: A new study suggests that the melatonin supplement you’ve been relying on for better sleep could be quietly impacting your heart health. Yes, the same natural remedy often hailed as a safe solution for insomnia may come with a surprising downside. But here’s where it gets controversial: while melatonin has long been marketed as a harmless sleep aid, this research hints at a potential link between long-term use and an increased risk of heart failure hospitalization. Should you be worried? Let’s dive in.

The American Heart Association recently reported findings that have raised eyebrows across the health community. Researchers analyzed five years of health records from over 130,000 adults with insomnia, comparing those who used melatonin long-term (defined as one year or more) to those who didn’t. The results? Approximately 90% of long-term melatonin users showed a higher likelihood of heart failure compared to nonusers, even after accounting for other health factors. Lead researcher Nnadi admitted, ‘We didn’t expect to see such a clear signal linking long-term use with higher rates of heart failure, hospitalizations, and death.’

But here’s the catch: The study hasn’t been peer-reviewed yet, and experts caution against jumping to conclusions. While the findings are concerning, they don’t prove a direct cause-and-effect relationship. This means more research is needed to fully understand melatonin’s impact on heart health. Still, it’s a wake-up call for the millions who turn to this supplement nightly.

And this is the part most people miss: The study has limitations. For instance, over-the-counter melatonin use might not always be recorded in medical records, so some ‘nonusers’ could actually be taking it. Additionally, there’s a lack of data on insomnia severity and psychiatric conditions, which could skew results. So, while the findings are alarming, they’re not the final word.

Heart failure, a condition where the heart can’t pump enough blood to meet the body’s needs, affects 6.7 million adults in the U.S. alone. If melatonin—a supplement many consider harmless—is contributing to this risk, it’s a game-changer. But before you toss your melatonin bottle, remember: this is just one study, and more evidence is needed.

Now, here’s a thought-provoking question for you: Should melatonin remain unregulated and widely recommended, or is it time for stricter guidelines and public awareness? Let us know your thoughts in the comments below.

In the meantime, if you’re concerned about your heart health or sleep habits, consult your doctor. And if you’re tuning in to NewsNation’s ‘Decision Desk 2025’ coverage of the nationwide elections on Tuesday from 7 p.m. to 12 a.m. EST, hosted by Chris Cuomo, Elizabeth Vargas, Leland Vittert, and Chris Stirewalt, you’ll find plenty of bipartisan discussions to keep you engaged. Not sure where to find NewsNation? Use their Channel Finder https://www.newsnationnow.com/channel-finder/ or stream live on their website. Stay informed, stay healthy, and let’s keep the conversation going.

Melatonin Warning: Study Links Long-Term Use to Heart Failure Risk | NewsNation Health Alert (2025)
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