Long-term use of melatonin supplements to support sleep may have negative health effects
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I agree with Dr. Peat about melatonin, especially since the usual supplements often come in absurd doses.
However, I'm a bit sceptical about that study. Did they control for other variables? Who takes melatonin long-term? People with chronic insomnia. Who has a higher risk of all sorts of health problems including heart disease? Chronic insomniacs. It's one of the worst things that can happen to the body. So I wouldn't be surprised if studies like that just find that insomniacs have more health problems, which is logical.
Having said that, it's not worth it to take melatonin. For me personally it had no effect at all on my sleep when I tried it on two occasions many years ago. For people who are desperate, an sleep-inducing anti histamine drug is likely the safer option. Although these can be hard on the liver if used longer term.
