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We follow longevity science. That means 3,700+ hours of recorded interviews with 380 researchers and doctors, and 48,500+ research studies, from clinical trials to large reviews. Each supplement you take gets one verdict per claim, and every line shows the minute or the study it came from.
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“It's hard to know which heads to listen to.” That comment has 2,300 likes. Some version of it turns up 2,189 times in the 298,879 comments on these six channels, and it rose by about half across 2025.
Glycinate or malate for the daily dose. Bisglycinate or threonate for sleep. Each form gets its own recommendation. Which do you take?
Magnesium glycinate and malate are better absorbed than other forms of magnesium.
2 sources: 1 positive, 1 partly 2 counted mentions from 2 sources
Magnesium glycinate is a better form for sleep than magnesium threonate.
No counted mention yet. No counted mention yet
A real viewer wrote that. One magnesium answer sits in 17 videos. Creatine took 50 videos and 85 hours. Positions also change, and nobody has time to catch the update.
ChatGPT gives you an answer. It rarely gives you the name and the minute behind it. An answer with no source is a guess in a confident voice.
You can re-watch the episode, read the thread or ask ChatGPT. You still won't know how many researchers and studies back a claim, who disagrees, or where it was said.
Precis keeps track. It reads every mention of a claim, in the interviews and in the studies, then works out one verdict and links each mention to its minute or its study.
Type your list or upload a photo. Each supplement comes back with its verdict and the receipts behind it. Check my stack →
Agreement is easy to find. Precis shows you where the sources split, then computes the verdict from every counted mention.
Glycinate for the daily dose. Other forms for sleep or the brain. The pick changes with the job.
Threonate is what the shelf pushes. One researcher calls it a poor way to hit your daily need.
The verdict on taking it still reads Strong consensus for. The split is over the form.
Evidence report
Magnesium supplements are worth taking.
8 sources: 6 positive, 2 partly.
Researchers say
6 positive, 2 partly
Mark Hyman, 15 mentions on this claim
Positive Video
on The Dr. Hyman Show, at 16:27 · positive
“magnesium is my number one sleep supplement”
on The Dr. Hyman Show, at 19:28 · positive
“It's one of the most consistently helpful nutrients for sleep. And you can use forms like magnesium glycinate or thrienate.”
on The Dr. Hyman Show, at 06:00 · positive
“take magnesium supplements now this is very important I think most of us do need these”
on The Dr. Hyman Show, at 07:17 · positive
“we need to be taking probably 300 400 milligrams a day I take about 4 or 600 I take it at night”
on The Dr. Hyman Show, at 29:24 · positive
“so magnesium is my first go-to a lot of people are low in magnesium that can cause insomnia”
on The Dr. Hyman Show, at 10:14 · positive
“there's some supplements that can really be helpful um I I like magnesium”
on The Dr. Hyman Show, at 05:18 · positive
“I want you to supplement wisely a highquality multivitamin magnesium vitamin D3 omega-3 fats or fish oil”
on The Dr. Hyman Show, at 27:47 · positive
“magnesium glycinate or magnesium 38 which is some the form that crosses the bloodb brain barrier helps reduce anxiety”
on The Dr. Hyman Show, at 11:40 · positive
“magnesium is one of my favorites to take magnesium before bed two to 400 milligrams”
on The Dr. Hyman Show, at 07:24 · positive
“we need to be taking probably 300 400 milligrams a day i take about four or six hundred”
on The Dr. Hyman Show, at 06:50 · positive
“try some relaxing minerals like magnesium and calcium.”
on The Dr. Hyman Show, at 21:25 · positive
“of all the supplements all the things that I use one of the most important is magnesium”
on The Dr. Hyman Show, at 03:12 · partly
“number two try magnesium take 300 to 600 milligrams of magnesium twice a day in the form of magnesium glycinate or citrate”
on The Dr. Hyman Show, at 06:13 · partly
“magnesium is a very powerful relaxation mineral for the digestive system it helps prevent the reflux”
on The Dr. Hyman Show, at 10:51 · partly
“if you need a little extra help getting asleep you could try magnesium at night”
Dr. Uma Naidoo, on The Dr. Hyman Show, at 59:10
Positive Video · Opinion
Open the tape at 59:10 →“you can certain certainly supplement uh for this”
Dr Michael Breus, 3 mentions on this claim
Positive Video
on Rangan Chatterjee's channel, at 1:28:48 · positive
“So, I start most people on magnesium glycinate um with about 150 to 200 milligrams.”
on The Diary Of A CEO, at 1:40:42 · positive
“So, a lot of people require magnesium supplementation.”
on The Diary Of A CEO, at 1:36:47 · partly
“If you're deficient in vitamin D, magnesium, iron, fix those three things first.”
Rhonda Patrick, 5 mentions on this claim
Positive Video
on The Dr. Hyman Show, at 1:15:58 · positive
“you want to make sure you're getting an organic salt so that would be something like magnesium citrate magnesium malate magnesium um glycinate”
on FoundMyFitness, at 22:46 · positive
“the answer is I hedge my bets I take a supplement that has many different forms of magnesium salts”
on FoundMyFitness, at 23:06 · positive
“ideally increasing leafy greens and also taking a supplement magnesium glycinate citrate malate are”
on The Dr. Hyman Show, at 1:19:02 · partly
“you about three 250 300 milligrams you know is a good is a good range”
on Huberman Lab, at 20:56 · partly
“supplementation with magnesium, it can cause GI distress at like high doses. I personally like to take around 130 or 135 milligrams”
Dr. Matt Walker, on Huberman Lab, at 2:20:10
Positive Video · Opinion
Open the tape at 2:20:10 →“the supplements that I recommend when people ask and for supplement recommendations specifically are magnesium 3 and”
Dr. Gabrielle Lyon, on Huberman Lab, at 2:30:09
Positive Video · Opinion
Open the tape at 2:30:09 →“but yes magnesium supplementation can be very beneficial uh for muscle for brain”
Guy Leschziner, on The Diary Of A CEO, at 1:16:37
Partly Video · Opinion
Open the tape at 1:16:37 →“magnesium so so anecdotally magnesium can help some individuals”
Andrew Huberman, 6 mentions on this claim
Partly Video
on Huberman Lab, at 27:31 · partly
“taking 300 to 400 milligrams of magnesium diglycinate or magnesium 3enate 30 to 60 minutes before sleep can aid them in falling asleep.”
on Huberman Lab, at 1:51:53 · partly
“So for many people, taking 300 to 400 milligrams of magnesium bisglycinate or magnesium threonate, and there I'm referring to the elemental magnesium for you aficionados,”
on Huberman Lab, at 1:13:55 · partly
“For many people, however, taking 145 milligrams of magnesium threonate can be very beneficial.”
on Huberman Lab, at 1:15:04 · partly
“About 5% of people report that magnesium threonate really disrupts their gut. It gives them diarrhea or gastric distress. In which case, don't take it.”
on Huberman Lab, at 1:01:44 · partly
“But magnesium threonate, most people I recommend it to have benefit from it tremendously.”
on Huberman Lab, at 18:15 · partly
“The supplements that I've suggested and that I personally take in order to improve my sleep are magnesium threonate”
Studies show
No study counted yet.
Mark Hyman Video · positive · 15 mentions
on The Dr. Hyman Show, at 16:27 · positive · Opinion
“magnesium is my number one sleep supplement”
on The Dr. Hyman Show, at 19:28 · positive · Opinion
“It's one of the most consistently helpful nutrients for sleep. And you can use forms like magnesium glycinate or thrienate.”
on The Dr. Hyman Show, at 06:00 · positive · Opinion
“take magnesium supplements now this is very important I think most of us do need these”
on The Dr. Hyman Show, at 07:17 · positive · Opinion
“we need to be taking probably 300 400 milligrams a day I take about 4 or 600 I take it at night”
on The Dr. Hyman Show, at 29:24 · positive · Opinion
“so magnesium is my first go-to a lot of people are low in magnesium that can cause insomnia”
on The Dr. Hyman Show, at 10:14 · positive · Opinion
“there's some supplements that can really be helpful um I I like magnesium”
on The Dr. Hyman Show, at 05:18 · positive · Opinion
“I want you to supplement wisely a highquality multivitamin magnesium vitamin D3 omega-3 fats or fish oil”
on The Dr. Hyman Show, at 27:47 · positive · Opinion
“magnesium glycinate or magnesium 38 which is some the form that crosses the bloodb brain barrier helps reduce anxiety”
on The Dr. Hyman Show, at 11:40 · positive · Opinion
“magnesium is one of my favorites to take magnesium before bed two to 400 milligrams”
on The Dr. Hyman Show, at 07:24 · positive · Opinion
“we need to be taking probably 300 400 milligrams a day i take about four or six hundred”
on The Dr. Hyman Show, at 06:50 · positive · Opinion
“try some relaxing minerals like magnesium and calcium.”
on The Dr. Hyman Show, at 21:25 · positive · Opinion
“of all the supplements all the things that I use one of the most important is magnesium”
on The Dr. Hyman Show, at 03:12 · partly · Opinion
“number two try magnesium take 300 to 600 milligrams of magnesium twice a day in the form of magnesium glycinate or citrate”
on The Dr. Hyman Show, at 06:13 · partly · Opinion
“magnesium is a very powerful relaxation mineral for the digestive system it helps prevent the reflux”
on The Dr. Hyman Show, at 10:51 · partly · Opinion
“if you need a little extra help getting asleep you could try magnesium at night”
Dr. Uma Naidoo, on The Dr. Hyman Show, at 59:10 Video · positive · Opinion
“you can certain certainly supplement uh for this”
Dr Michael Breus Video · positive · 3 mentions
on Rangan Chatterjee's channel, at 1:28:48 · positive · Opinion
“So, I start most people on magnesium glycinate um with about 150 to 200 milligrams.”
on The Diary Of A CEO, at 1:40:42 · positive · Opinion
“So, a lot of people require magnesium supplementation.”
on The Diary Of A CEO, at 1:36:47 · partly · Opinion
“If you're deficient in vitamin D, magnesium, iron, fix those three things first.”
Rhonda Patrick Video · positive · 5 mentions
on The Dr. Hyman Show, at 1:15:58 · positive · Opinion
“you want to make sure you're getting an organic salt so that would be something like magnesium citrate magnesium malate magnesium um glycinate”
on FoundMyFitness, at 22:46 · positive · Opinion
“the answer is I hedge my bets I take a supplement that has many different forms of magnesium salts”
on FoundMyFitness, at 23:06 · positive · Opinion
“ideally increasing leafy greens and also taking a supplement magnesium glycinate citrate malate are”
on The Dr. Hyman Show, at 1:19:02 · partly · Opinion
“you about three 250 300 milligrams you know is a good is a good range”
on Huberman Lab, at 20:56 · partly · Opinion
“supplementation with magnesium, it can cause GI distress at like high doses. I personally like to take around 130 or 135 milligrams”
Dr. Matt Walker, on Huberman Lab, at 2:20:10 Video · positive · Opinion
“the supplements that I recommend when people ask and for supplement recommendations specifically are magnesium 3 and”
Dr. Gabrielle Lyon, on Huberman Lab, at 2:30:09 Video · positive · Opinion
“but yes magnesium supplementation can be very beneficial uh for muscle for brain”
Guy Leschziner, on The Diary Of A CEO, at 1:16:37 Video · partly · Opinion
“magnesium so so anecdotally magnesium can help some individuals”
Andrew Huberman Video · partly · 6 mentions
on Huberman Lab, at 27:31 · partly · Opinion
“taking 300 to 400 milligrams of magnesium diglycinate or magnesium 3enate 30 to 60 minutes before sleep can aid them in falling asleep.”
on Huberman Lab, at 1:51:53 · partly · Opinion
“So for many people, taking 300 to 400 milligrams of magnesium bisglycinate or magnesium threonate, and there I'm referring to the elemental magnesium for you aficionados,”
on Huberman Lab, at 1:13:55 · partly · Opinion
“For many people, however, taking 145 milligrams of magnesium threonate can be very beneficial.”
on Huberman Lab, at 1:15:04 · partly · Opinion
“About 5% of people report that magnesium threonate really disrupts their gut. It gives them diarrhea or gastric distress. In which case, don't take it.”
on Huberman Lab, at 1:01:44 · partly · Opinion
“But magnesium threonate, most people I recommend it to have benefit from it tremendously.”
on Huberman Lab, at 18:15 · partly · Opinion
“The supplements that I've suggested and that I personally take in order to improve my sleep are magnesium threonate”
Magnesium supplements improve sleep and overall health.
8 sources: 7 partly, 1 negative.
Researchers say
4 partly
Dr. Mark Hyman, 6 mentions on this claim
Partly Video
on Huberman Lab, at 51:45 · positive
“It's also helps with detoxification and sleep and other things.”
on The Dr. Hyman Show, at 21:35 · positive
“most people have such improvements pretty quickly when they take it uh and it can improve your sleep”
on The Dr. Hyman Show, at 19:02 · partly
“Okay. Now, here's here's uh the most helpful ones. Magnesium.”
on The Dr. Hyman Show, at 29:20 · partly
“there are a lot of things you can do to help improve sleep through supplementation so magnesium is my first go-to”
on The Dr. Hyman Show, at 10:48 · partly
“magnesium is absorbed through the skin which helps you relax”
on The Dr. Hyman Show, at 10:53 · partly
“need a little extra help getting asleep you could try magnesium at night”
Dr Michael Breus, on Rangan Chatterjee's channel, at 1:28:41
Partly Video · Opinion
Open the tape at 1:28:41 →“You get your magnesium which can help with your deficiency”
Guy Leschziner, on The Diary Of A CEO, at 1:16:37
Partly Video · Opinion
Open the tape at 1:16:37 →“anecdotally magnesium can help some individuals”
Andrew Huberman, 4 mentions on this claim
Partly Video
on Huberman Lab, at 1:51:53 · partly
“So for many people, taking 300 to 400 milligrams of magnesium bisglycinate or magnesium threonate, and there I'm referring to the elemental magnesium for you aficionados,”
on Huberman Lab, at 1:12:28 · partly
“There are supplements that for most people will greatly improve their ability to fall and stay asleep”
on Huberman Lab, at 1:01:44 · partly
“But magnesium threonate, most people I recommend it to have benefit from it tremendously.”
on Huberman Lab, at 18:15 · partly
“The supplements that I've suggested and that I personally take in order to improve my sleep are magnesium threonate,”
Studies show
3 partly, 1 negative
4 papers we read
Pooled analysis, BMC Complement Med Ther, 2021, PMID 33865376
Partly Study
Read the paper on PubMed →The findings suggest that the true effect of magnesium supplementation on insomnia symptoms lies somewhere between a positive effect and a null effect in comparison to placebo as measured by sleep parameters and questionnaires.
Systematic review, Nutrients, 2024, PMID 39064758
Partly Study
Read the paper on PubMed →One study shows that magnesium and vitamin B6 supplementations alleviate RLS symptoms, with magnesium being superior in terms of efficacy, albeit with limited evidence.
Controlled trial, Front Endocrinol (Lausanne), 2024, PMID 39534260
Partly Study
Read the paper on PubMed →In addition, supplementation significantly decreased the severity of insomnia among patients with diabetes by improving sleep duration.
Controlled trial, Nutrients, 2024, PMID 38257144
Negative Study
Read the paper on PubMed →Supplementation of ZMA for two nights of partial sleep deprivation had no effect on sleep or subsequent morning performance.
Dr. Mark Hyman Video · partly · 6 mentions
on Huberman Lab, at 51:45 · positive · Opinion
“It's also helps with detoxification and sleep and other things.”
on The Dr. Hyman Show, at 21:35 · positive · Opinion
“most people have such improvements pretty quickly when they take it uh and it can improve your sleep”
on The Dr. Hyman Show, at 19:02 · partly · Opinion
“Okay. Now, here's here's uh the most helpful ones. Magnesium.”
on The Dr. Hyman Show, at 29:20 · partly · Opinion
“there are a lot of things you can do to help improve sleep through supplementation so magnesium is my first go-to”
on The Dr. Hyman Show, at 10:48 · partly · Opinion
“magnesium is absorbed through the skin which helps you relax”
on The Dr. Hyman Show, at 10:53 · partly · Opinion
“need a little extra help getting asleep you could try magnesium at night”
Dr Michael Breus, on Rangan Chatterjee's channel, at 1:28:41 Video · partly · Opinion
“You get your magnesium which can help with your deficiency”
Guy Leschziner, on The Diary Of A CEO, at 1:16:37 Video · partly · Opinion
“anecdotally magnesium can help some individuals”
Andrew Huberman Video · partly · 4 mentions
on Huberman Lab, at 1:51:53 · partly · Opinion
“So for many people, taking 300 to 400 milligrams of magnesium bisglycinate or magnesium threonate, and there I'm referring to the elemental magnesium for you aficionados,”
on Huberman Lab, at 1:12:28 · partly · Opinion
“There are supplements that for most people will greatly improve their ability to fall and stay asleep”
on Huberman Lab, at 1:01:44 · partly · Opinion
“But magnesium threonate, most people I recommend it to have benefit from it tremendously.”
on Huberman Lab, at 18:15 · partly · Opinion
“The supplements that I've suggested and that I personally take in order to improve my sleep are magnesium threonate,”
Pooled analysis, BMC Complement Med Ther, 2021, PMID 33865376 Study · partly
The findings suggest that the true effect of magnesium supplementation on insomnia symptoms lies somewhere between a positive effect and a null effect in comparison to placebo as measured by sleep parameters and questionnaires.
Systematic review, Nutrients, 2024, PMID 39064758 Study · partly
One study shows that magnesium and vitamin B6 supplementations alleviate RLS symptoms, with magnesium being superior in terms of efficacy, albeit with limited evidence.
Controlled trial, Front Endocrinol (Lausanne), 2024, PMID 39534260 Study · partly
In addition, supplementation significantly decreased the severity of insomnia among patients with diabetes by improving sleep duration.
Controlled trial, Nutrients, 2024, PMID 38257144 Study · negative
Supplementation of ZMA for two nights of partial sleep deprivation had no effect on sleep or subsequent morning performance.
Magnesium supplements improve sleep and overall health.
Researchers
Dr. Mark Hyman, 6 mentions on this claim
Partly Video
on Huberman Lab, at 51:45 · positive
“It's also helps with detoxification and sleep and other things.”
on The Dr. Hyman Show, at 21:35 · positive
“most people have such improvements pretty quickly when they take it uh and it can improve your sleep”
on The Dr. Hyman Show, at 19:02 · partly
“Okay. Now, here's here's uh the most helpful ones. Magnesium.”
on The Dr. Hyman Show, at 29:20 · partly
“there are a lot of things you can do to help improve sleep through supplementation so magnesium is my first go-to”
on The Dr. Hyman Show, at 10:48 · partly
“magnesium is absorbed through the skin which helps you relax”
on The Dr. Hyman Show, at 10:53 · partly
“need a little extra help getting asleep you could try magnesium at night”
Dr Michael Breus, on Rangan Chatterjee's channel, at 1:28:41
Partly Video · Opinion
Open the tape at 1:28:41 →“You get your magnesium which can help with your deficiency”
Guy Leschziner, on The Diary Of A CEO, at 1:16:37
Partly Video · Opinion
Open the tape at 1:16:37 →“anecdotally magnesium can help some individuals”
Andrew Huberman, 4 mentions on this claim
Partly Video
on Huberman Lab, at 1:51:53 · partly
“So for many people, taking 300 to 400 milligrams of magnesium bisglycinate or magnesium threonate, and there I'm referring to the elemental magnesium for you aficionados,”
on Huberman Lab, at 1:12:28 · partly
“There are supplements that for most people will greatly improve their ability to fall and stay asleep”
on Huberman Lab, at 1:01:44 · partly
“But magnesium threonate, most people I recommend it to have benefit from it tremendously.”
on Huberman Lab, at 18:15 · partly
“The supplements that I've suggested and that I personally take in order to improve my sleep are magnesium threonate,”
Studies
Pooled analysis, BMC Complement Med Ther, 2021, PMID 33865376
Partly Study
Read the paper on PubMed →The findings suggest that the true effect of magnesium supplementation on insomnia symptoms lies somewhere between a positive effect and a null effect in comparison to placebo as measured by sleep parameters and questionnaires.
Systematic review, Nutrients, 2024, PMID 39064758
Partly Study
Read the paper on PubMed →One study shows that magnesium and vitamin B6 supplementations alleviate RLS symptoms, with magnesium being superior in terms of efficacy, albeit with limited evidence.
Controlled trial, Front Endocrinol (Lausanne), 2024, PMID 39534260
Partly Study
Read the paper on PubMed →In addition, supplementation significantly decreased the severity of insomnia among patients with diabetes by improving sleep duration.
Controlled trial, Nutrients, 2024, PMID 38257144
Negative Study
Read the paper on PubMed →Supplementation of ZMA for two nights of partial sleep deprivation had no effect on sleep or subsequent morning performance.
Magnesium supplements are worth taking.
Mark Hyman, 15 mentions on this claim
Positive Video
on The Dr. Hyman Show, at 16:27 · positive
“magnesium is my number one sleep supplement”
on The Dr. Hyman Show, at 19:28 · positive
“It's one of the most consistently helpful nutrients for sleep. And you can use forms like magnesium glycinate or thrienate.”
on The Dr. Hyman Show, at 06:00 · positive
“take magnesium supplements now this is very important I think most of us do need these”
on The Dr. Hyman Show, at 07:17 · positive
“we need to be taking probably 300 400 milligrams a day I take about 4 or 600 I take it at night”
on The Dr. Hyman Show, at 29:24 · positive
“so magnesium is my first go-to a lot of people are low in magnesium that can cause insomnia”
on The Dr. Hyman Show, at 10:14 · positive
“there's some supplements that can really be helpful um I I like magnesium”
on The Dr. Hyman Show, at 05:18 · positive
“I want you to supplement wisely a highquality multivitamin magnesium vitamin D3 omega-3 fats or fish oil”
on The Dr. Hyman Show, at 27:47 · positive
“magnesium glycinate or magnesium 38 which is some the form that crosses the bloodb brain barrier helps reduce anxiety”
on The Dr. Hyman Show, at 11:40 · positive
“magnesium is one of my favorites to take magnesium before bed two to 400 milligrams”
on The Dr. Hyman Show, at 07:24 · positive
“we need to be taking probably 300 400 milligrams a day i take about four or six hundred”
on The Dr. Hyman Show, at 06:50 · positive
“try some relaxing minerals like magnesium and calcium.”
on The Dr. Hyman Show, at 21:25 · positive
“of all the supplements all the things that I use one of the most important is magnesium”
on The Dr. Hyman Show, at 03:12 · partly
“number two try magnesium take 300 to 600 milligrams of magnesium twice a day in the form of magnesium glycinate or citrate”
on The Dr. Hyman Show, at 06:13 · partly
“magnesium is a very powerful relaxation mineral for the digestive system it helps prevent the reflux”
on The Dr. Hyman Show, at 10:51 · partly
“if you need a little extra help getting asleep you could try magnesium at night”
Dr. Uma Naidoo, on The Dr. Hyman Show, at 59:10
Positive Video · Opinion
Open the tape at 59:10 →“you can certain certainly supplement uh for this”
Dr Michael Breus, 3 mentions on this claim
Positive Video
on Rangan Chatterjee's channel, at 1:28:48 · positive
“So, I start most people on magnesium glycinate um with about 150 to 200 milligrams.”
on The Diary Of A CEO, at 1:40:42 · positive
“So, a lot of people require magnesium supplementation.”
on The Diary Of A CEO, at 1:36:47 · partly
“If you're deficient in vitamin D, magnesium, iron, fix those three things first.”
Rhonda Patrick, 5 mentions on this claim
Positive Video
on The Dr. Hyman Show, at 1:15:58 · positive
“you want to make sure you're getting an organic salt so that would be something like magnesium citrate magnesium malate magnesium um glycinate”
on FoundMyFitness, at 22:46 · positive
“the answer is I hedge my bets I take a supplement that has many different forms of magnesium salts”
on FoundMyFitness, at 23:06 · positive
“ideally increasing leafy greens and also taking a supplement magnesium glycinate citrate malate are”
on The Dr. Hyman Show, at 1:19:02 · partly
“you about three 250 300 milligrams you know is a good is a good range”
on Huberman Lab, at 20:56 · partly
“supplementation with magnesium, it can cause GI distress at like high doses. I personally like to take around 130 or 135 milligrams”
Dr. Matt Walker, on Huberman Lab, at 2:20:10
Positive Video · Opinion
Open the tape at 2:20:10 →“the supplements that I recommend when people ask and for supplement recommendations specifically are magnesium 3 and”
Dr. Gabrielle Lyon, on Huberman Lab, at 2:30:09
Positive Video · Opinion
Open the tape at 2:30:09 →“but yes magnesium supplementation can be very beneficial uh for muscle for brain”
Guy Leschziner, on The Diary Of A CEO, at 1:16:37
Partly Video · Opinion
Open the tape at 1:16:37 →“magnesium so so anecdotally magnesium can help some individuals”
Andrew Huberman, 6 mentions on this claim
Partly Video
on Huberman Lab, at 27:31 · partly
“taking 300 to 400 milligrams of magnesium diglycinate or magnesium 3enate 30 to 60 minutes before sleep can aid them in falling asleep.”
on Huberman Lab, at 1:51:53 · partly
“So for many people, taking 300 to 400 milligrams of magnesium bisglycinate or magnesium threonate, and there I'm referring to the elemental magnesium for you aficionados,”
on Huberman Lab, at 1:13:55 · partly
“For many people, however, taking 145 milligrams of magnesium threonate can be very beneficial.”
on Huberman Lab, at 1:15:04 · partly
“About 5% of people report that magnesium threonate really disrupts their gut. It gives them diarrhea or gastric distress. In which case, don't take it.”
on Huberman Lab, at 1:01:44 · partly
“But magnesium threonate, most people I recommend it to have benefit from it tremendously.”
on Huberman Lab, at 18:15 · partly
“The supplements that I've suggested and that I personally take in order to improve my sleep are magnesium threonate”
positive partly neutral negative Each researcher and each study counts once per claim, however often they come up.
Adult women need about 310 to 320 mg a day, adult men about 400 to 420.
Dr. Rhonda Patrick, The Science of Magnesium, 3:10.
The form, the timing and what the other sources say are in the report.
The method has three steps and none of them is a judgment call.
We read every video on the topic and log each mention of a claim. Own research or an opinion counts for the person who said it. A cited study counts for the study, once. A host's remark inside an interview is not counted. Creatine took 50 videos and 85 hours of tape.
Every counted mention of a claim feeds one verdict: Strong consensus, Leaning, Mixed, Conflicting or Not enough evidence. Fewer than 3 counted mentions, or a single source, reads Not enough evidence.
Every counted mention carries the video and the minute, or the study. Go listen.
Creatine, start to finish
videos read, across 85 hours
counted mentions from 11 sources, each with its receipt
the verdict that count produces
The verdict moves only when a new mention is counted. Nothing here is our opinion.
Most people come here to add something. The more useful half of this page is the bottom row.
Where the evidence agrees
35 counted mentions from 35 sources
20 counted mentions from 20 sources
14 counted mentions from 14 sources
Where the sources split
11 counted mentions from 11 sources
7 counted mentions from 7 sources
Conflicting means the counted sources take both sides.
7 of 44 topics do not have enough counted evidence for a verdict yet.
39 more topics, from Vitamin D to fasting and HRT.
Browse All ReportsA report tells you what the sources said. Chat answers the follow-up: what did any of them say about this next to my labs, my meds, my age. Every answer still carries the expert, the video and the minute.
You don't have to trust us. Check the tape.
My magnesium is normal but my vitamin D is low. Do I still need magnesium?
A normal result doesn't settle it. Around 99% of your magnesium sits inside cells, so a serum test reads a sliver of it. Your body also pulls from bone to hold that number steady. A real shortfall can hide behind a clean report. Magnesium is also what turns vitamin D into the form your body uses.
When do I take them?
Magnesium in the evening. Huberman suggests 300 to 400mg, 30 to 60 minutes before bed. Take vitamin D with a meal that has fat in it, since it is fat-soluble and you absorb little without fat. Morning or midday is the better slot.
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Questions
We didn't build Precis for people who read the trials themselves. We built it for the reader who wrote "just tell me the 6 things." That's why every verdict comes with a count you can check, and every line links to the minute it was said or the study it came from.
No. No brand pays us. There are no affiliate links and there is no storefront. Only readers pay us, through Pro or a one-off $49 health assessment that scores you against the optimal targets researchers set on the record. A free account opens the dose, form and timing for every topic, and your saved stack. Pro adds unlimited chat and Ask. You are the customer, not the product. That is why we have no reason to prefer one magnesium form over another.
Plenty of people do, and it answers fast. The difference is what comes back with the answer. Every claim here names the person who said it, the video and the minute. You can open the source and hear it yourself. Where someone cites a study, we surface that too. We draw from one fixed set of videos we have read. If nobody said it on tape, we don't print it. That rule is the whole product. We never ask you to take our word for anything. Reports update monthly, or sooner when a source changes position.
Each claim gets one verdict, computed from every counted mention of it in 3,700+ hours of recorded interviews with 380 researchers and doctors, plus 48,500+ research studies. Own research or an opinion counts for the person who said it. A study they cite counts for the study, once. A host's remark inside an interview is not counted. The verdict reads Strong consensus, Leaning, Mixed, Conflicting or Not enough evidence, with the direction for or against. Each counted mention links to its video and timestamp, or to its study.
Researcher interviews on the longevity channels we follow: 3,700+ hours of recorded interviews with 380 researchers and doctors, plus 48,500+ research studies. Someone counts as a researcher or doctor only when an episode title puts Dr., Professor, PhD or MD next to their name. Every recommendation traces back to a specific video and timestamp.
Across 3,700+ hours of recorded interviews with 380 researchers and doctors, plus 48,500+ research studies, this is where the evidence lands on the main claim for each supplement. Strong consensus for: Creatine and Magnesium. Leaning for: Probiotics & Gut Health, GLP-1 Agonists, Omega-3, Glutathione, Caffeine, Vitamin D, Vitamin B12, Electrolytes, Ashwagandha, Folate, Garlic, Glycine, Melatonin, Zinc, CoQ10, Vitamin C, Iron, Curcumin, and Selenium. Mixed: NMN & NAD+. Conflicting: Collagen. Leaning against: Metformin. 6 of the 30 supplement reports do not have enough counted evidence for a verdict yet. We track 50 supplements and publish 44 full reports.
No. We report what researchers say in public, on tape. Precis is an information tool, not a medical provider. Every claim links back to its source video and timestamp so you can check it yourself. Talk to your doctor before you change your health routine.
Arun Agrahri builds Precis. One person, no team, no medical license. Every dose on the site had to match a line in a real transcript before it shipped. How it works →
Also free, and none of it needs an account.
One short email a week: the claims and evidence that moved, where the record disagrees, and whether any of it is worth doing. Every claim links to the minute it was said. In 16 issues so far, we marked 3 of 85 new claims worth acting on.
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