Evidence report · Sleep
Melatonin tells the body it is night; it does not make sleep, and for most healthy adults it adds only a few minutes. It helps more with jet lag, shift work and in older adults, ideally at low doses, since store doses run far above natural levels. Protecting your own melatonin with morning light and dark evenings comes first.
Verdict
Leaning for
Melatonin is worth taking for sleep.
8 sources: 2 positive, 4 partly, 1 neutral, 1 negative
10 sources credited23 counted mentions28 episodes · 48 h17 checked quotesChecked against the tape 2026-03-23
Each claim gets one verdict, worked out from every counted mention. One dot is one source: a researcher or a study. Tap a dot to see its receipt.
positive partly neutral negative Each researcher and each study counts once per claim, however often they come up.
Melatonin is worth taking for sleep.
8 sources: 2 positive, 4 partly, 1 neutral, 1 negative.
Researchers say
2 positive, 4 partly, 1 neutral, 1 negative
David Sinclair, on Rangan Chatterjee's channel, at 1:26:14
Positive Video · Opinion
Open the tape at 1:26:14 →“a bit of melatonin is works well for me”
Mark Hyman, 4 mentions on this claim
Positive Video
on The Dr. Hyman Show, at 25:11 · positive
on The Dr. Hyman Show, at 06:58 · positive
“Try melatonin even.”
on The Dr. Hyman Show, at 03:37 · positive
on The Dr. Hyman Show, at 04:08 · partly
Andrew Huberman, 5 mentions on this claim
Partly Video
on Huberman Lab, at 15:30 · partly
on Huberman Lab, at 44:26 · negative
“when it comes to melatonin, I'm extremely cautious.”
on Huberman Lab, at 19:23 · negative
“My personal bias on this is, except in rare cases, no,”
on Huberman Lab, at 1:18:19 · negative
“I personally do not recommend supplementing melatonin because it's supplemented typically at very high levels.”
on Huberman Lab, at 56:05 · negative
“I am not a fan of melatonin for a couple of reasons”
Bryan Johnson, on Bryan Johnson's channel, at 01:47
Partly Video · Opinion
No checked quote for this mention yet. The link opens the source at the moment it comes up.
Open the tape at 01:47 →Jeff Cavaliere, on The Diary Of A CEO, at 2:03:35
Partly Video · Opinion
Open the tape at 2:03:35 →“I believe it to be um helpful, you know, for people that are having a problem establishing a normal sleep pattern.”
Matthew Walker, 2 mentions on this claim
Partly Video
on The Diary Of A CEO, at 25:19 · partly
“And so, there under conditions of jet lag, very helpful.”
on The Dr. Hyman Show, at 1:15:03 · negative
“melatonin I probably wouldn't favor it right now”
Peter Attia, on The Drive, at 02:31
Neutral Video · Opinion
No checked quote for this mention yet. The link opens the source at the moment it comes up.
Open the tape at 02:31 →Michael Breus, on The Diary Of A CEO, at 1:22:20
Negative Video · Opinion
Open the tape at 1:22:20 →“So, first of all, that's not what melatonin does. Melatonin is a sleep regulator, not a sleep initiator.”
Studies show
No study counted yet.
David Sinclair, on Rangan Chatterjee's channel, at 1:26:14 Video · positive · Opinion
“a bit of melatonin is works well for me”
Mark Hyman Video · positive · 4 mentions
on The Dr. Hyman Show, at 25:11 · positive · Opinion
on The Dr. Hyman Show, at 06:58 · positive · Opinion
“Try melatonin even.”
on The Dr. Hyman Show, at 03:37 · positive · Opinion
on The Dr. Hyman Show, at 04:08 · partly · Opinion
Andrew Huberman Video · partly · 5 mentions
on Huberman Lab, at 15:30 · partly · Opinion
on Huberman Lab, at 44:26 · negative · Opinion
“when it comes to melatonin, I'm extremely cautious.”
on Huberman Lab, at 19:23 · negative · Opinion
“My personal bias on this is, except in rare cases, no,”
on Huberman Lab, at 1:18:19 · negative · Opinion
“I personally do not recommend supplementing melatonin because it's supplemented typically at very high levels.”
on Huberman Lab, at 56:05 · negative · Opinion
“I am not a fan of melatonin for a couple of reasons”
Bryan Johnson, on Bryan Johnson's channel, at 01:47 Video · partly · Opinion
Jeff Cavaliere, on The Diary Of A CEO, at 2:03:35 Video · partly · Opinion
“I believe it to be um helpful, you know, for people that are having a problem establishing a normal sleep pattern.”
Matthew Walker Video · partly · 2 mentions
on The Diary Of A CEO, at 25:19 · partly · Opinion
“And so, there under conditions of jet lag, very helpful.”
on The Dr. Hyman Show, at 1:15:03 · negative · Opinion
“melatonin I probably wouldn't favor it right now”
Peter Attia, on The Drive, at 02:31 Video · neutral · Opinion
Michael Breus, on The Diary Of A CEO, at 1:22:20 Video · negative · Opinion
“So, first of all, that's not what melatonin does. Melatonin is a sleep regulator, not a sleep initiator.”
Melatonin supplements improve sleep.
8 sources: 2 positive, 5 partly, 1 negative.
Researchers say
1 positive, 5 partly, 1 negative
Mark Hyman, 2 mentions on this claim
Positive Video
on The Dr. Hyman Show, at 03:37 · positive
on The Dr. Hyman Show, at 25:11 · partly
Dr. Michael Grandner, on FoundMyFitness, at 1:44:06
Partly Video · Opinion
Open the tape at 1:44:06 →“Melatonin can promote sleep in humans.”
David Sinclair, on Rangan Chatterjee's channel, at 1:26:14
Partly Video · Opinion
Open the tape at 1:26:14 →“a bit of melatonin is works well for me”
Andrew Huberman, 3 mentions on this claim
Partly Video
on Huberman Lab, at 15:30 · partly
on Huberman Lab, at 1:16:56 · partly
“And melatonin indeed can help us fall asleep,”
on Huberman Lab, at 1:18:16 · partly
“Melatonin helps you fall asleep. It doesn't help you stay asleep.”
Jeff Cavaliere, on The Diary Of A CEO, at 2:03:35
Partly Video · Opinion
Open the tape at 2:03:35 →“I believe it to be um helpful, you know, for people that are having a problem establishing a normal sleep pattern.”
Matthew Walker, on The Diary Of A CEO, at 25:19
Partly Video · Opinion
Open the tape at 25:19 →“And so, there under conditions of jet lag, very helpful.”
Michael Breus, on The Diary Of A CEO, at 1:22:22
Negative Video · Opinion
Open the tape at 1:22:22 →“that's not what melatonin does. Melatonin is a sleep regulator, not a sleep initiator.”
Studies show
1 positive
1 paper we read
Pooled analysis, PLoS One, 2013, PMID 23691095
Positive Study
Read the paper on PubMed →Our meta-analysis demonstrates that melatonin significantly improves sleep in subjects with primary sleep disorders compared to placebo.
Mark Hyman Video · positive · 2 mentions
on The Dr. Hyman Show, at 03:37 · positive · Opinion
on The Dr. Hyman Show, at 25:11 · partly · Opinion
Pooled analysis, PLoS One, 2013, PMID 23691095 Study · positive
Our meta-analysis demonstrates that melatonin significantly improves sleep in subjects with primary sleep disorders compared to placebo.
Dr. Michael Grandner, on FoundMyFitness, at 1:44:06 Video · partly · Opinion
“Melatonin can promote sleep in humans.”
David Sinclair, on Rangan Chatterjee's channel, at 1:26:14 Video · partly · Opinion
“a bit of melatonin is works well for me”
Andrew Huberman Video · partly · 3 mentions
on Huberman Lab, at 15:30 · partly · Opinion
on Huberman Lab, at 1:16:56 · partly · Opinion
“And melatonin indeed can help us fall asleep,”
on Huberman Lab, at 1:18:16 · partly · Opinion
“Melatonin helps you fall asleep. It doesn't help you stay asleep.”
Jeff Cavaliere, on The Diary Of A CEO, at 2:03:35 Video · partly · Opinion
“I believe it to be um helpful, you know, for people that are having a problem establishing a normal sleep pattern.”
Matthew Walker, on The Diary Of A CEO, at 25:19 Video · partly · Opinion
“And so, there under conditions of jet lag, very helpful.”
Michael Breus, on The Diary Of A CEO, at 1:22:22 Video · negative · Opinion
“that's not what melatonin does. Melatonin is a sleep regulator, not a sleep initiator.”
4 more claims on dose, form and timing, each with its verdict and receipts, are in the full report.
7 risks to check before you start
Built from every credited researcher and cited study on each claim.
Melatonin is worth taking for sleep.
David Sinclair, on Rangan Chatterjee's channel, at 1:26:14
Positive Video · Opinion
Open the tape at 1:26:14 →“a bit of melatonin is works well for me”
Mark Hyman, 4 mentions on this claim
Positive Video
on The Dr. Hyman Show, at 25:11 · positive
on The Dr. Hyman Show, at 06:58 · positive
“Try melatonin even.”
on The Dr. Hyman Show, at 03:37 · positive
on The Dr. Hyman Show, at 04:08 · partly
Andrew Huberman, 5 mentions on this claim
Partly Video
on Huberman Lab, at 15:30 · partly
on Huberman Lab, at 44:26 · negative
“when it comes to melatonin, I'm extremely cautious.”
on Huberman Lab, at 19:23 · negative
“My personal bias on this is, except in rare cases, no,”
on Huberman Lab, at 1:18:19 · negative
“I personally do not recommend supplementing melatonin because it's supplemented typically at very high levels.”
on Huberman Lab, at 56:05 · negative
“I am not a fan of melatonin for a couple of reasons”
Bryan Johnson, on Bryan Johnson's channel, at 01:47
Partly Video · Opinion
No checked quote for this mention yet. The link opens the source at the moment it comes up.
Open the tape at 01:47 →Jeff Cavaliere, on The Diary Of A CEO, at 2:03:35
Partly Video · Opinion
Open the tape at 2:03:35 →“I believe it to be um helpful, you know, for people that are having a problem establishing a normal sleep pattern.”
Matthew Walker, 2 mentions on this claim
Partly Video
on The Diary Of A CEO, at 25:19 · partly
“And so, there under conditions of jet lag, very helpful.”
on The Dr. Hyman Show, at 1:15:03 · negative
“melatonin I probably wouldn't favor it right now”
Michael Breus, on The Diary Of A CEO, at 1:22:20
Negative Video · Opinion
Open the tape at 1:22:20 →“So, first of all, that's not what melatonin does. Melatonin is a sleep regulator, not a sleep initiator.”
Melatonin supplements improve sleep.
Mark Hyman, 2 mentions on this claim
Positive Video
on The Dr. Hyman Show, at 03:37 · positive
on The Dr. Hyman Show, at 25:11 · partly
Pooled analysis, PLoS One, 2013, PMID 23691095
Positive Study
Read the paper on PubMed →Our meta-analysis demonstrates that melatonin significantly improves sleep in subjects with primary sleep disorders compared to placebo.
Dr. Michael Grandner, on FoundMyFitness, at 1:44:06
Partly Video · Opinion
Open the tape at 1:44:06 →“Melatonin can promote sleep in humans.”
David Sinclair, on Rangan Chatterjee's channel, at 1:26:14
Partly Video · Opinion
Open the tape at 1:26:14 →“a bit of melatonin is works well for me”
Andrew Huberman, 3 mentions on this claim
Partly Video
on Huberman Lab, at 15:30 · partly
on Huberman Lab, at 1:16:56 · partly
“And melatonin indeed can help us fall asleep,”
on Huberman Lab, at 1:18:16 · partly
“Melatonin helps you fall asleep. It doesn't help you stay asleep.”
Jeff Cavaliere, on The Diary Of A CEO, at 2:03:35
Partly Video · Opinion
Open the tape at 2:03:35 →“I believe it to be um helpful, you know, for people that are having a problem establishing a normal sleep pattern.”
Matthew Walker, on The Diary Of A CEO, at 25:19
Partly Video · Opinion
Open the tape at 25:19 →“And so, there under conditions of jet lag, very helpful.”
Michael Breus, on The Diary Of A CEO, at 1:22:22
Negative Video · Opinion
Open the tape at 1:22:22 →“that's not what melatonin does. Melatonin is a sleep regulator, not a sleep initiator.”
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This report on Melatonin draws on 28 videos (48 hours analyzed) out of 3,700+ hours of recorded interviews with 370+ researchers and doctors, plus 18,100+ research studies. Every mention of a claim gets a stance, and the verdict is worked out from all of them, never written by hand.
The full report adds 7 key findings and the dose and protocol. It also has the verdict on every claim, a receipt for each mention, the risks to check, and what combines with it.
Get dosages, timing and the verdict on every claim with its receipts for Melatonin.