03/07/2026
Day 24 of Not Everything You’ve Heard is True about Nutrition… we’ve been covering nutrition myths and supplement myths, let’s keep on going!
Myth: Melatonin is dangerous.‼️�Truth: It is a hormone with specific uses and modest benefits.
I’m going to cover this topic in more depth in my Monday newsletter, so comment SLEEP if you want more details on this topic!
But let’s talk about it quickly
There is no strong evidence that taking melatonin shuts down your own body’s production of it
Melatonin is commonly used as a sleepy vitamin, but it’s actually a hormone.
Your brain SHOULD naturally produce it when it gets dark to signal that it is time to wind down. But in some people that doesn’t always happen.
First goal would babe to improve sleep hygeine, of course. Things like sleep routines, light exposure, caffeine timing, and stress are where to start.
Research in adults shows melatonin can help people fall asleep a little faster and slightly improve perceived sleep quality.
Short term use in common doses around 0.5–5 mg appears reasonably safe for most adults.
The bigger unknown is long term use. We simply do not have strong multi year data on otherwise healthy people taking it nightly for years.
Melatonin tends to be most helpful in a few specific situations:
• Delayed sleep phase when someone cannot fall asleep until very late�• Jet lag when crossing time zones�• Short term support while someone works on improving sleep habits
There is also interesting research showing melatonin signaling is often disrupted in people with metabolic stress like insulin resistance and chronic inflammation. Some studies suggest melatonin may help support blood sugar, blood pressure, and lipid markers when used alongside lifestyle changes.
Think of melatonin more like a bridge tool for sleep and circadian rhythm rather than a forever solution.
If you want the deeper breakdown including when it actually makes sense to use melatonin and when it probably will not help, this week’s newsletter goes into the research. I also include my favorite brands and information on kids and melatonin in my newsletter. 📧
Comment SLEEP and I’ll send it to you!
