You follow Huberman, Attia, and Patrick. But do you know where they disagree?

We analyzed 3,400+ videos across 5 top health experts. Here's what they actually agree on — dosages, protocols, timing — and where they don't.

Andrew Huberman Peter Attia Rhonda Patrick Bryan Johnson Mark Hyman
6 channels. 3,400+ videos. 1,000+ guest scientists. 53 topics scored.

You're making health decisions on incomplete information

The 5 experts you follow have published 3,400+ videos. You've seen maybe 2% of it. The rest? That's where the dosages, the caveats, and the position changes live.

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Conflicting recommendations

Huberman recommends magnesium threonate. Attia prefers glycinate. Patrick says both. Which do you take?

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Expensive guesswork

Bryan Johnson's protocol costs $2,000/month. What actually matters for someone spending $100?

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Cherry-picked clips

That supplement stack from Reddit? Based on one 3-minute clip from a 2-hour podcast.

We synthesize what they actually recommend

Every transcript. Every mention. Every recommendation across all 5 experts — cross-referenced into one clear report per topic.

Exact dosages and timing the majority agree on.

Where experts diverge and the reasoning why.

Chat with the full database of expert transcripts.

Consensus Report

Magnesium

4/5

Experts Recommend

Strong Consensus

Four of five experts actively recommend magnesium supplementation for sleep, cognition, and bone health. The primary debate is around form — Attia favors carbonate, Patrick recommends glycinate — not whether to take it.

Expert Positions

Andrew Huberman
Andrew Huberman
Recommends
Peter Attia
Peter Attia
Recommends for Bone Health
Rhonda Patrick
Rhonda Patrick
Strongly Recommends
Bryan Johnson
Bryan Johnson
Not Explicitly Featured
Mark Hyman
Mark Hyman
Strongly Recommends

Dosage & Timing Details

Recommended dosage 300-500mg elemental daily
Recommended form Glycinate, Malate, or Carbonate
Optimal timing Smaller doses throughout day
Key note Blood tests are unreliable

Source Evidence

"Magnesium 300 to 500 milligrams daily. These can be supplemented if you can't get this in food." — Attia, Bone Health Episode @ 87:02

"Nearly half of the US population has inadequate magnesium intake..." — Patrick, Magnesium & Aging @ 02:05

"Magnesium is about 45% insufficient or deficient, zinc is about 40%." — Hyman, Supplement Industry @ 15:42

How It Works

From raw video to actionable consensus in three steps.

Step 1

We watch everything

AI analyzes every video, every mention, every recommendation across 5 expert channels. No clip is too old or too obscure.

Step 2

We find the consensus

Cross-reference positions. Score agreement. Flag where they clash and why. No opinion is ignored or overweighted.

Step 3

You make confident decisions

Clear reports with consensus scores, dosages, and timing. Stop the research rabbit hole — know what the experts actually agree on.

25 Topics. 5 Experts. Scored by Consensus.

Every topic scored by consensus. Free reports show you where experts stand. Pro unlocks exactly what to take, how much, and when.

+ 19 more topics including Omega-3, Fasting, Cold Exposure, Metformin, Rapamycin, and more

Browse All Reports

Ask anything. Get answers backed by 3,400+ videos.

Expert AI Chat searches across every video from all 5 experts and returns evidence-based answers with source citations. Like having a research assistant who watched everything.

Every answer traces back to a real expert, a real video, and a real timestamp. No hallucinations, no made-up studies.

Should I take creatine if I'm over 40? Any risks?

4 of 5 experts recommend creatine for adults over 40, with particular emphasis on cognitive benefits that increase with age.

Huberman and Patrick both highlight emerging research on creatine's neuroprotective effects. Attia recommends it as part of his standard longevity protocol regardless of age. Standard dose: 5g/day monohydrate.

The one caveat: Johnson excludes it from his protocol due to potential interaction with his specific kidney markers, but notes this is individual.

Sources: Huberman Lab #312 (1:23:45), The Drive #298 (0:44:12), FoundMyFitness #201 (0:32:08)

Ask about any supplement, protocol, or health topic...

Expert AI Chat is included with Precis Pro.

Make confident health decisions.
Without watching everything.

Free reports show consensus scores and expert stances. Pro unlocks dosages, protocols, expert deep dives, and unlimited chat.

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We watch 5 experts so you don't have to

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  • Unlimited chat with expert data — ask anything across 3,500+ videos
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The average health optimizer spends $214/month on supplements. The consensus stack? $60–90. If Precis helps you drop what doesn't have consensus support, it pays for itself in month one.

Questions

Straight answers.

What supplements do longevity experts actually agree on?

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Based on our analysis of 3,400+ videos, the consensus stack — what every expert agrees on — is: Omega-3 (4.8/5), Creatine (4.6/5), Sauna (4.6/5), and Magnesium (4.1/5). The lowest are NMN/NAD+ (2.3/5) and GLP-1 drugs (2.6/5). The cheap, boring supplements have the most agreement. The expensive, trendy ones are where experts fight. We score 53 supplements total across 36 full reports.

Which experts and scientists does Precis analyze?

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Six channels: Andrew Huberman, Peter Attia, Rhonda Patrick, Bryan Johnson, Mark Hyman, and Diary of a CEO. This includes 1,000+ guest scientists — researchers like Dr. Layne Norton (creatine, protein), Dr. Andy Galpin (exercise physiology), Dr. Matthew Walker (sleep), Dr. Darren Candow (bone health), Dr. Bill Harris (omega-3), Dr. Gabrielle Lyon (muscle health), and Dr. Stacy Sims (women's health). Every recommendation traces back to a specific video and timestamp.

How does the consensus scoring work?

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Each supplement is scored 0-5 based on how many of the 5 core experts independently recommend it. A score of 5.0 means all experts strongly agree. Below 3.0 means they actively disagree. Scores come from 3,559 video summaries with citations to specific timestamps. We track stance strength — strongly recommends, recommends, nuanced/cautious, or disagrees — so you can see exactly where and why experts diverge.

Is this medical advice?

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No. We synthesize what experts say publicly in their videos and podcasts. Precis is an information tool, not a medical provider. Every claim links back to its source video and timestamp so you can verify it yourself. Always consult your doctor before making changes to your health routine.

How often are reports updated?

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Monthly, or sooner when an expert significantly changes their position. We track position changes over time so you can see when and why an expert updated their recommendation. Pro subscribers get alerts when expert stances change for supplements in their stack.

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