What 5 Longevity Experts Agree On (And Disagree)

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Table Of Content

• The Short Answer
• The Consensus Table: 5 Experts, One Grid
• Part 1: The Big Agreements — Where All 5 Experts Align
• 1. Omega-3 Fatty Acids (EPA/DHA) — 5 Out of 5
• Frequently Asked Questions
• What supplements do all longevity experts agree on?
• What do longevity experts disagree about most?
• How often do expert positions change?
• Should I follow the consensus recommendations?
• How do I stay updated on expert protocol changes?
• 2. Vitamin D3 — 5 Out of 5
• 3. Exercise Is the Number One Intervention — 5 Out of 5
• 4. Sleep Is Non-Negotiable — 5 Out of 5
• 5. Creatine Monohydrate — 4 Out of 5
• 6. Protein Intake Is Critical for Longevity — 5 Out of 5
• 7. Magnesium Supplementation — 3-5 Out of 5
• What Three Years of Tracking Experts Taught Me
• Part 2: The Big Disagreements — Where They Diverge
• 1. NMN and NAD+ Precursors — The Biggest Split in Longevity
• 2. The Supplement Count — Minimalism vs. Maximalism
• 3. Metformin — The Drug That Most Have Abandoned
• 4. Rapamycin — The Prescription Drug Divide
• 5. Resveratrol — One True Believer
• 6. AG1 and Greens Powders — Sponsorship vs. Science
• 7. Cost and Accessibility — The Elephant in the Room
• Part 3: Why They Disagree — The Philosophical Divide
• Evidence Threshold: The Fundamental Split
• Maximalist vs. Minimalist Philosophy
• Financial Incentives and Sponsor Relationships
• Different Risk Tolerances
• Part 4: What This Means for You
• The High-Confidence Starting Point
• The “More Aggressive” Tier
• What to Avoid Until You Have the Basics
• Research and Medical Disclaimer
• Frequently Asked Questions
• Which longevity expert should I follow if I can only pick one?
• Do all longevity experts agree that NMN works?
• How much does a longevity supplement stack cost?
• Is Bryan Johnson’s Blueprint protocol realistic for normal people?
• Why did so many experts stop taking metformin?
• What is the cheapest effective longevity supplement stack?
• Should I take rapamycin for longevity?
• Where do Huberman’s sponsor relationships affect his recommendations?
• Keep Reading
• Sources and Further Reading
• Core Longevity Supplements (Expert Consensus)

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The Short Answer

Five of the most-followed longevity experts — Andrew Huberman, Peter Attia, David Sinclair, Bryan Johnson, and Brad Stanfield — agree on more than most people realize. All five take omega-3s, vitamin D, and prioritize exercise above any supplement. But they diverge sharply on NAD+ precursors, the number of pills worth swallowing, and how much evidence you need before you start experimenting on yourself. Understanding where these experts converge tells you what the science most strongly supports. Understanding where they diverge tells you where the science is still catching up.

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The Consensus Table: 5 Experts, One Grid

Before we get into the details, here is a topic-by-topic snapshot of where these five experts stand. This table is based on their most recent public statements through early 2026 — podcast episodes, YouTube videos, published protocols, and newsletters.

Topic	Huberman	Attia	Sinclair	Johnson	Stanfield	Consensus Level
Omega-3 (EPA/DHA)	2-3g EPA/day	~2-2.5g EPA+DHA	Takes it	800mg EPA/DHA	~1g EPA+DHA/day	5/5 take it
Vitamin D3	5,000 IU/day	5,000 IU/day	Takes it	2,000 IU/day	1,000 IU/day	5/5 take it
Exercise > supplements	Strongly agrees	Most vocal advocate	Agrees	Built into Blueprint	Agrees	5/5 agree
Sleep (7-9 hours)	Dedicated toolkit	Critical pillar	Prioritizes	Strict 8:30pm bedtime	Prioritizes	5/5 agree
Magnesium	Threonate 145mg	~1g elemental (3 forms)	Not reported	Not reported	Taurate 126mg	3-4/5 take it
Creatine	5g/day	5g/day	Not reported	2.5g/day	5g/day	4/5 take it
Protein emphasis	High protein	1g/lb body weight	Calorie restriction focus	Measured daily	Adequate protein	5/5 emphasize it
NMN/NAD+ precursors	Takes NMN	Never	Takes NMN (1g/day)	Takes NMN + NR	Dropped (prefers niacinamide)	Split: 3 yes, 2 no
Metformin	Not discussed	Dropped it	Dropped it	Cycles it	Against for non-diabetics	Mostly abandoned
Resveratrol	Not reported	Called it “nonsense”	1g/day (cornerstone)	Dropped	Dropped (blunts exercise)	1/5 takes it
Rapamycin	Not discussed	8mg/week (Rx)	Reduced significantly	Takes it (Rx)	Only in clinical trials	Split: cautious interest
AG1 / Greens powders	Takes it (sponsor)	Takes it (investor)	Not discussed	Not discussed	Called it unnecessary	2/5 take it, 1 opposes
Supplement count	~15 supplements	~8-10 core	~10-15	50-100+ pills/day	5-8 total	Wide range
Monthly cost	~$300-500	~$200-400	~$200-300	~$2M/year total protocol	~$30-50	Massive range

For a complete supplement-by-supplement breakdown of each expert’s stack, see our full comparison table.

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Part 1: The Big Agreements — Where All 5 Experts Align

The noise in the longevity space makes it easy to focus on disagreements. But the most useful signal is where independent experts — with different training, different evidence thresholds, and different financial incentives — land on the same conclusion. Here are the areas where all five converge.

1. Omega-3 Fatty Acids (EPA/DHA) — 5 Out of 5

This is the closest thing to unanimous agreement in the longevity supplement world.

Andrew Huberman has discussed omega-3 supplementation across multiple Huberman Lab episodes, targeting 2-3 grams of EPA per day. On Episode #3 and in subsequent AMA episodes, he cited research linking EPA at doses above 1g/day to mood support, referencing a 2019 meta-analysis in Translational Psychiatry. He has named Carlson’s fish oil as a brand he personally uses.

Peter Attia has described omega-3 supplementation as one of the few supplements he considers well-supported by the evidence base. On The Drive podcast, he has discussed targeting approximately 2-2.5g of combined EPA and DHA daily, and monitors his omega-3 index via blood testing.

David Sinclair has confirmed he takes omega-3s, though he has been less specific about dosing than some of his peers.

Bryan Johnson includes 800mg of combined EPA/DHA/DPA in his Blueprint protocol, which he has published publicly on his website and discussed on multiple podcast appearances.

Brad Stanfield takes approximately 1g of combined EPA and DHA daily. In his YouTube videos reviewing the supplement evidence base, he has consistently placed omega-3s in his “worth taking” tier, citing cardiovascular and neuroprotective evidence.

Why they agree: The evidence base for omega-3 supplementation is among the strongest of any supplement. Multiple large meta-analyses support cardiovascular benefits, and the American Heart Association has issued formal recommendations for omega-3 intake in certain populations. The disagreement is on optimal dosing, not on whether to take it.

Check Carlson’s Fish Oil EPA/DHA pricing on Amazon

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Want to see the full cost breakdown? Use our Protocol Cost Calculator to compare costs across expert-recommended protocols.

Checking supplement interactions? Use our Interaction Checker to verify safety before combining supplements in your protocol.

Frequently Asked Questions

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2. Vitamin D3 — 5 Out of 5

Every expert on this list either takes vitamin D3 or has stated that testing and maintaining adequate levels is important.

Andrew Huberman has reported taking approximately 5,000 IU of vitamin D3 daily, paired with vitamin K2 (MK-7 form). He has discussed monitoring his blood levels to maintain serum 25(OH)D in the 60-80 ng/mL range. For his complete supplement protocol, see our Huberman supplement stack breakdown.

Peter Attia also takes approximately 5,000 IU daily and has discussed the importance of testing on The Drive podcast. He has described vitamin D as one of the few areas where supplementation makes straightforward sense for most people, given the high prevalence of deficiency.

David Sinclair has confirmed he takes vitamin D3, though he has been less specific about dosing in public statements.

Bryan Johnson takes 2,000 IU daily as part of his Blueprint protocol. His lower dose likely reflects his blood-testing approach — Johnson tests extensively and adjusts doses to maintain target ranges.

Brad Stanfield takes 1,000 IU daily, the most conservative dose on this list. In his YouTube videos, Stanfield has noted that optimal dosing depends on baseline blood levels, skin color, sun exposure, and latitude — and that many people supplement more than they need. He has recommended testing before dosing high. For more on his approach, see our Stanfield protocol page.

Why they agree: Vitamin D deficiency is common globally, and the evidence supporting supplementation for people with low levels is strong. The disagreement here is on dose (1,000 IU to 5,000 IU), which reflects different philosophies about where blood levels should sit — not whether vitamin D matters.

Check Vitamin D3 + K2 pricing on Amazon

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3. Exercise Is the Number One Intervention — 5 Out of 5

If these five experts agree on one thing above all else, it is this: no supplement, drug, or protocol comes close to the health impact of regular exercise. This consensus is worth emphasizing because the supplement industry (and content about these experts) often buries it.

Peter Attia is the most vocal on this point. In his book Outlive and on The Drive podcast, Attia has described exercise as the single most powerful longevity intervention available, stating that its impact on all-cause mortality exceeds any pharmaceutical intervention ever studied. His framework includes four pillars of exercise: stability, strength, aerobic efficiency (Zone 2), and peak aerobic output (VO2 max). He has stated that he dropped metformin specifically because it appeared to blunt exercise adaptations, choosing exercise over the drug.

Andrew Huberman has dedicated multiple Huberman Lab episodes to exercise science and has repeatedly stated that no supplement substitutes for physical activity. His personal routine includes resistance training, cardiovascular work, and deliberate cold exposure.

David Sinclair exercises regularly and has acknowledged its primacy in longevity, though his public emphasis tends to focus more heavily on molecular interventions and NAD+ biology.

Bryan Johnson incorporates a structured daily exercise routine into his Blueprint protocol — approximately one hour per day of combined resistance and cardiovascular training, with performance tracked quantitatively.

Brad Stanfield has been explicit in his YouTube videos: exercise is the foundation, and most supplements are marginal compared to consistent physical activity. He has cited research suggesting that the mortality risk reduction from regular exercise dwarfs anything achievable through supplementation alone.

Why they agree: The epidemiological and clinical trial data on exercise and longevity is overwhelming. A 2022 study in the British Journal of Sports Medicine found that 150 minutes of moderate-to-vigorous physical activity per week was associated with a significant reduction in all-cause mortality risk. No supplement has ever shown comparable effect sizes in human data.

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4. Sleep Is Non-Negotiable — 5 Out of 5

Sleep is the second lifestyle factor where all five experts converge without reservation.

Andrew Huberman has published an extensive sleep toolkit and dedicated multiple podcast episodes to sleep optimization. He targets 7-9 hours per night and has discussed his personal use of magnesium threonate, apigenin, and glycine as sleep-support supplements.

Peter Attia describes sleep as one of the five pillars of longevity in Outlive. He has discussed his own history of sleep disruption and the impact of poor sleep on metabolic health, cognitive function, and cardiovascular risk.

David Sinclair has stated that he prioritizes sleep and has discussed its role in DNA repair and epigenetic maintenance.

Bryan Johnson is arguably the most regimented. His Blueprint protocol includes a strict 8:30 PM bedtime, blue-light blocking in the evening, controlled bedroom temperature, and detailed sleep tracking. He has publicly shared his sleep data showing consistently high sleep scores.

Brad Stanfield has emphasized sleep in his YouTube content and takes glycine and magnesium glycinate before bed. He has cited research linking short sleep duration to accelerated biological aging.

Why they agree: The research on sleep deprivation and mortality risk is unambiguous. A 2023 meta-analysis in Sleep Medicine Reviews found that both short sleep (under 6 hours) and disrupted sleep are associated with significantly elevated all-cause mortality. Matthew Walker’s research at UC Berkeley, frequently cited by several of these experts, has further documented the mechanisms linking sleep to immune function, metabolic health, and neurodegeneration.

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5. Creatine Monohydrate — 4 Out of 5

Creatine is one of the most studied supplements in existence, and the consensus among these experts is notable.

Andrew Huberman takes 5g of creatine monohydrate daily. He has discussed it across multiple episodes, citing cognitive benefits in addition to the well-established muscular and strength effects. On Episode #54 (Science of Strength), he described creatine as one of the few supplements with a strong evidence base for both physical and cognitive performance.

Peter Attia also takes 5g daily. While not as vocal about creatine as some other topics, he has included it in discussions of supplements with strong evidence.

David Sinclair has not publicly reported taking creatine. His protocol emphasis leans toward NAD+ biology and sirtuin activation rather than performance-oriented supplementation.

Bryan Johnson takes 2.5g daily as part of Blueprint. The lower dose may reflect his lower body weight or his systematic dose optimization approach.

Brad Stanfield takes 5g daily and has placed it in his “evidence-based” tier on YouTube, citing studies on muscular strength, cognitive function, and bone density.

Why they mostly agree: Creatine monohydrate has decades of research behind it. A 2017 position stand by the International Society of Sports Nutrition concluded that creatine is the most effective ergogenic supplement available. More recent research has expanded interest into cognitive benefits and potential neuroprotective effects, which is relevant to the longevity community.

Check Creatine Monohydrate pricing on Amazon

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6. Protein Intake Is Critical for Longevity — 5 Out of 5

All five experts emphasize adequate protein intake for maintaining muscle mass, metabolic health, and functional capacity with aging.

Peter Attia is the strongest advocate. He has recommended approximately 1 gram of protein per pound of body weight per day — well above the RDA — and has described muscle mass as a key predictor of longevity. On The Drive podcast, he has discussed the concept of “muscle-centric medicine,” frequently referencing the work of Dr. Gabrielle Lyon.

Andrew Huberman has discussed protein intake in episodes covering nutrition and supplementation, emphasizing its role in muscle protein synthesis and satiety.

David Sinclair has historically emphasized calorie restriction and fasting, but has acknowledged the importance of protein intake, particularly as his own views have evolved.

Bryan Johnson tracks his daily protein intake precisely — his Blueprint protocol targets a specific protein amount calculated for his body composition, sourced primarily from plants.

Brad Stanfield recommends adequate protein for muscle maintenance with aging and has discussed the research on protein and sarcopenia in his YouTube content.

Why they agree: The evidence linking muscle mass to longevity has grown considerably. A 2022 study in the British Journal of Sports Medicine found that higher muscle strength was independently associated with reduced all-cause mortality. Protein is the dietary substrate required to build and maintain that muscle — making it one of the few nutritional recommendations with direct longevity relevance.

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7. Magnesium Supplementation — 3-5 Out of 5

Magnesium is not quite a full consensus, but it is close. At least three of the five experts actively supplement, and none have spoken against it.

Andrew Huberman takes magnesium threonate (145mg elemental magnesium) before bed for sleep quality and cognitive function, and has also mentioned magnesium bisglycinate.

Peter Attia takes approximately 1g of elemental magnesium daily across three different forms — the most aggressive magnesium supplementation on this list.

David Sinclair has not publicly reported magnesium use.

Bryan Johnson has not specifically highlighted magnesium in his Blueprint supplement list.

Brad Stanfield takes magnesium taurate (126mg elemental) and has discussed its evidence base for cardiovascular and metabolic health.

Why most agree: Studies suggest that a significant portion of the population does not meet recommended magnesium intake through diet alone. Magnesium plays a role in over 300 enzymatic reactions, and its impact on sleep, cardiovascular function, and blood sugar regulation makes it relevant to longevity.

Check Magnesium Threonate pricing on Amazon

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What Three Years of Tracking Experts Taught Me

I wrote a lot about this in the expert stacks comparison piece, but it’s worth repeating the thing that surprised me most: these five guys agree on way more than the internet makes it seem.

Omega-3s, vitamin D, magnesium, creatine — that’s the consensus core. Huberman takes them, Attia takes them, Sinclair takes them, Johnson takes them, Stanfield takes them. When five people who disagree about almost everything else all independently arrive at the same four supplements, that tells you something.

After three years of tracking all of them, here’s my take: start with the consensus and stay there until you have a specific reason to add more. That’s essentially what I did — just in reverse. I started with 15+ supplements, slowly realized most of them had weak evidence, and ended up back at the basics plus a few heart-specific additions.

The disagreements get all the attention — NMN vs NR, whether resveratrol works, rapamycin for non-sick people. And those are interesting debates. But they’re advanced-level conversations that don’t matter if you’re not already covering the fundamentals. It’s like arguing about tire compounds in Formula 1 when you haven’t learned to drive yet.

My stack costs under $100 a month and covers every single thing these experts agree on. That should tell you something about where the value is.

Every week I track what these experts change, what new research drops, and what actually matters for your protocol. The CoreStacks Longevity Report — free, no hype.

Part 2: The Big Disagreements — Where They Diverge

The agreements above are useful precisely because the disagreements are so loud. Here is where these five experts part ways — and the reasons behind their different conclusions.

1. NMN and NAD+ Precursors — The Biggest Split in Longevity

This is the single most divisive topic in the longevity supplement space. For a full deep-dive, see our NMN vs NR comparison article.

David Sinclair is the strongest NMN advocate. He takes 1g of NMN daily, dissolved in yogurt with a fat source to enhance absorption. Sinclair’s advocacy is rooted in his own lab’s research on NAD+ biology and sirtuin activation. He has discussed NMN on The Joe Rogan Experience, in his book Lifespan, and in dozens of interviews.

Andrew Huberman has reported taking NMN, discussed in episodes featuring Sinclair. He has also mentioned NR supplementation at approximately 500mg/day.

Bryan Johnson takes both NMN (500mg/day, six days per week) and alternates with NR (300-450mg/day), an approach he tracks through blood biomarkers.

Brad Stanfield initially tried NMN, then dropped it. In his YouTube videos, he has explained that the human clinical trial evidence for NMN is insufficient to justify the cost, and he now recommends low-dose niacinamide (vitamin B3) as a cheaper alternative that raises NAD+ through a different pathway. His evidence threshold requires human randomized controlled trials, not mouse studies or mechanistic data.

Peter Attia has been the most consistently skeptical. He has stated on The Drive that he has never taken NMN or NR, describing the evidence for clinical endpoints in humans as insufficient. His position is not that NAD+ biology is unimportant, but that the available human data does not yet justify supplementation.

The dividing line: Sinclair and Huberman act on mechanistic and animal model data. Stanfield and Attia require human RCTs showing clinical endpoints. Johnson acts on everything and tracks outcomes. This single difference in evidence threshold explains much of the broader disagreement pattern.

Check NMN Supplement pricing on Amazon

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2. The Supplement Count — Minimalism vs. Maximalism

Perhaps the most visible disagreement is how many supplements these experts consider worthwhile.

Bryan Johnson takes the most by a wide margin. His Blueprint protocol includes over 100 daily pills and compounds, spanning supplements, prescription medications, and experimental interventions. His total protocol cost exceeds $2 million per year (though the supplements themselves are a fraction of that — much of the cost is in medical procedures, testing, and staff).

Andrew Huberman maintains a stack of roughly 15 core supplements, making him a moderate by longevity influencer standards. His stack spans foundational nutrition (omega-3, D3, creatine), sleep support (magnesium threonate, apigenin, glycine), cognitive enhancement (Alpha-GPC, rhodiola), and hormonal support (tongkat ali). See our complete Huberman stack guide for details.

David Sinclair takes approximately 10-15 supplements and molecules, with an emphasis on NAD+ precursors (NMN), sirtuin activators (resveratrol), and senolytics (fisetin).

Peter Attia takes roughly 8-10 core supplements and prescription medications. His approach is to include only what has strong evidence or what he monitors closely through biomarker testing. He has described himself as less interested in supplements than in exercise, sleep, nutrition, and emotional health.

Brad Stanfield is the minimalist of the group. His stack contains 5-8 items at an estimated monthly cost of $30-50. He has repeatedly argued on YouTube that the majority of supplements marketed for longevity lack sufficient human evidence, and that spending $200-500/month on supplements when you could spend $50 and invest the rest in whole foods, exercise equipment, or a gym membership is an irrational allocation.

Why this matters for you: If you are looking for the highest-confidence, lowest-cost starting point, Stanfield’s minimalist approach offers the best evidence-to-cost ratio. If you have more budget and higher risk tolerance, the approaches of Huberman or Attia add layers of potential benefit. Johnson’s approach is not replicable for the vast majority of people and is best understood as an experiment of one.

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3. Metformin — The Drug That Most Have Abandoned

Metformin was once considered a leading longevity drug candidate. The trajectory of expert opinion on it is instructive.

David Sinclair previously took metformin for years and discussed it extensively in Lifespan. He has since stopped, citing gut side effects, and switched to berberine (1g/day) as a partial replacement.

Peter Attia took metformin for a period and then publicly dropped it. His reasoning was specific: research suggested metformin blunts the beneficial adaptations from exercise, particularly mitochondrial biogenesis. Since Attia considers exercise the most powerful longevity intervention, he chose exercise over metformin when the two appeared to conflict.

Bryan Johnson still cycles metformin at 500-1,500mg under medical supervision as part of Blueprint.

Brad Stanfield has stated he would never recommend metformin for non-diabetic individuals, citing research showing it can reduce the exercise response by as much as 50% in some measures.

Andrew Huberman has not publicly discussed taking or opposing metformin in detail.

The lesson: Metformin’s fall from longevity darling illustrates how expert consensus can shift as new evidence emerges. The TAME trial (Targeting Aging with Metformin) is still ongoing and may change the calculation — but for now, most experts on this list have moved away from it.

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4. Rapamycin — The Prescription Drug Divide

Rapamycin is arguably the most intriguing and controversial longevity compound currently in discussion.

Peter Attia has been the most prominent voice discussing rapamycin. He has reported taking 8mg weekly under medical supervision and has dedicated multiple episodes of The Drive to the mechanistic rationale (mTOR inhibition, autophagy enhancement) and the emerging human safety data at intermittent low doses. He has been careful to note that this is a prescription immunosuppressant with real risks.

Bryan Johnson takes rapamycin as part of his physician-supervised Blueprint protocol, though he has disclosed less about his specific dosing regimen.

David Sinclair reported taking rapamycin intermittently (approximately 4 times per year) but has significantly reduced his use.

Brad Stanfield has taken the position that rapamycin should only be used within clinical trials. Notably, Stanfield is running his own rapamycin trial — PEARL (Participatory Evaluation of Aging with Rapamycin for Longevity) — which reflects his belief that the compound is interesting enough to study formally but not ready for self-experimentation.

Andrew Huberman has not publicly discussed personal use of rapamycin.

The dividing line: This is one of the clearest examples of different risk tolerances. Attia accepts the risk of an off-label prescription drug because he finds the mechanistic data compelling. Stanfield wants the same data run through a proper clinical trial before he would recommend it. Both positions are intellectually defensible — they just reflect different philosophies about how much uncertainty a person should accept.

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5. Resveratrol — One True Believer

Resveratrol is perhaps the starkest example of expert disagreement in the longevity space.

David Sinclair takes 1g of resveratrol daily, dissolved in yogurt with a fat source. Resveratrol is a cornerstone of his personal protocol and is central to his published research on sirtuin activation. He has discussed it extensively in Lifespan, on The Joe Rogan Experience, and in academic publications.

Peter Attia has publicly called resveratrol “nonsense” as a longevity supplement, pointing to the failure of large clinical trials to demonstrate benefits and the poor bioavailability of oral resveratrol in humans.

Brad Stanfield initially took resveratrol and then dropped it. He has cited research suggesting resveratrol may blunt exercise adaptations — a pattern similar to the metformin concern — and has stated that the human evidence does not support supplementation.

Bryan Johnson previously included resveratrol in his protocol and has since removed it.

Andrew Huberman has not publicly reported taking resveratrol.

The score: 1 out of 5 currently takes resveratrol. This is notable because resveratrol was one of the first compounds to drive mainstream interest in longevity supplementation, largely due to Sinclair’s research. Its decline in expert popularity reflects the broader pattern: promising mouse data and mechanistic rationale do not always hold up when tested in humans.

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6. AG1 and Greens Powders — Sponsorship vs. Science

AG1 (formerly Athletic Greens) sits at the intersection of supplementation science and influencer economics.

Andrew Huberman takes AG1 daily. AG1 is also a long-running sponsor of the Huberman Lab podcast. Huberman has stated that he took AG1 before the sponsorship relationship began, but transparency requires noting the financial relationship. See our Huberman stack article for more context.

Peter Attia also takes AG1 daily and is reportedly an investor in the company.

Brad Stanfield has publicly stated that greens powders are unnecessary for most people, arguing that the same nutrients are available more cheaply and in better-absorbed forms through whole foods or targeted individual supplements. He has specifically addressed AG1 on his YouTube channel.

David Sinclair and Bryan Johnson have not publicly discussed AG1 or greens powders as part of their protocols.

Why this matters: AG1 is a useful case study in evaluating expert recommendations. When an expert has a financial relationship with a product, it does not automatically mean their endorsement is insincere — but it does mean you should weigh that recommendation differently than one from an expert with no financial stake. Stanfield’s counterpoint — that you can get the same micronutrient coverage for less money through targeted supplements — is worth considering.

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7. Cost and Accessibility — The Elephant in the Room

The financial range across these five experts is staggering.

Expert	Estimated Monthly Supplement Cost	Total Protocol Cost
Brad Stanfield	~$30-50/month	~$30-50/month
Peter Attia	~$200-400/month	Higher with Rx and testing
Andrew Huberman	~$300-500/month	Higher with testing
David Sinclair	~$200-300/month	Higher with Rx
Bryan Johnson	$10,000+/month (supplements alone)	~$2M/year total protocol

Brad Stanfield has been the most vocal about the cost-effectiveness question. He has argued that spending $30-50/month on a small number of well-evidenced supplements (omega-3, vitamin D, creatine, magnesium) captures the vast majority of the benefit, and that the incremental value of adding more supplements follows a steep curve of diminishing returns.

Bryan Johnson’s approach is explicitly not intended to be replicated. He has described Blueprint as an experiment to see what is possible with unlimited resources. Whether his approach produces meaningfully better outcomes than Stanfield’s $50/month stack is a question that will take years to answer.

For our analysis of building an evidence-based stack at different price points, see our expert stacks comparison page.

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Part 3: Why They Disagree — The Philosophical Divide

The disagreements above are not random. They follow predictable fault lines in how each expert evaluates evidence and makes decisions under uncertainty.

Evidence Threshold: The Fundamental Split

This is the single biggest driver of disagreement among longevity experts.

The “act on mechanistic data” camp (Sinclair, Huberman, Johnson): These experts are willing to take a compound based on strong mechanistic rationale (how it works at the molecular level), animal model data (mouse studies showing lifespan extension), and preliminary human data (small trials showing biomarker changes). Their reasoning: if the mechanism is well-understood and the safety profile is acceptable, the expected value of taking the compound exceeds the expected cost of waiting for perfect human data — especially because perfect data may be 10-20 years away, and aging is happening now.

The “require human RCTs” camp (Attia, Stanfield): These experts require human randomized controlled trials showing clinical endpoints (not just biomarker changes) before recommending or personally taking a compound. Their reasoning: the history of medicine is littered with compounds that worked beautifully in mice and failed in humans. Hormone replacement therapy, antioxidant supplementation, and beta-carotene are frequently cited examples. The expected cost of taking something ineffective or harmful outweighs the expected cost of waiting.

Neither camp is wrong. They are making different bets under genuine uncertainty.

Maximalist vs. Minimalist Philosophy

Maximalists (Johnson, Huberman, Sinclair) tend to believe that combining multiple interventions, each with a modest probability of benefit, creates a portfolio effect where the cumulative benefit is meaningful even if any individual supplement’s effect is small.

Minimalists (Stanfield, Attia) tend to believe that each additional supplement adds complexity, cost, potential interactions, and psychological overhead — and that the marginal benefit of supplement #15 is vanishingly small compared to supplement #3. Better to nail the basics (exercise, sleep, nutrition, stress management) and add supplements only when the evidence is strong.

Financial Incentives and Sponsor Relationships

This factor must be acknowledged fairly. Several experts on this list have financial relationships with supplement companies:

• Huberman has sponsorship relationships with AG1, Momentous, and other supplement brands
• Attia is reportedly an investor in AG1
• Sinclair has financial interests in companies working on NAD+ precursors and longevity compounds
• Johnson funds his own supplement line (Blueprint Stack)
• Stanfield has notably fewer commercial supplement relationships, which is one reason his minimalist position is viewed as less conflicted

None of this means any expert is being dishonest. People generally take sponsorships from companies whose products they already use, and financial interest does not negate genuine belief. But it is a factor that belongs in any honest comparison.

Different Risk Tolerances

Peter Attia takes rapamycin — a prescription immunosuppressant — but refuses to take NMN. David Sinclair takes NMN daily but rarely discusses rapamycin. Both are making risk calculations, but they are weighing different risks differently based on their training, research focus, and personal health priorities.

Bryan Johnson has the highest risk tolerance by far, willingly undergoing experimental procedures (young blood plasma transfusions, gene therapy explorations) that no other expert on this list would endorse for the general public.

Brad Stanfield has the lowest risk tolerance for unproven interventions, but interestingly is running his own rapamycin clinical trial — suggesting he is not averse to the compound itself, only to taking it outside a controlled research setting.

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Part 4: What This Means for You

The High-Confidence Starting Point

If you are looking for the interventions with the strongest expert consensus and evidence base, start here:

1. Exercise regularly — All 5 experts agree this is more important than any supplement. Zone 2 cardio + resistance training. This is not optional.
2. Sleep 7-9 hours — All 5 experts prioritize this. If your sleep is bad, fix it before adding any supplement.
3. Take omega-3s (EPA/DHA) — 5/5 take it. 1-3g of combined EPA and DHA daily is the range across experts.
4. Test and optimize vitamin D — 5/5 take it. Get your blood levels tested; supplement if deficient. 1,000-5,000 IU/day depending on your levels.
5. Consider creatine monohydrate — 4/5 take it. 5g/day is the standard dose. One of the most studied supplements in existence.
6. Eat adequate protein — 5/5 emphasize this. At minimum 0.7g per pound of body weight; Attia recommends up to 1g/lb.
7. Consider magnesium — 3-4/5 supplement it. Threonate for sleep, glycinate or taurate for general use.

This core stack costs approximately $30-75/month and captures the vast majority of the expert consensus. For detailed supplement recommendations at different price points, see our expert stacks comparison.

Check Omega-3 Fish Oil pricing on Amazon

Check Vitamin D3 + K2 pricing on Amazon

Check Creatine Monohydrate pricing on Amazon

Check Magnesium Threonate pricing on Amazon

The “More Aggressive” Tier

If you have addressed all the fundamentals above and want to explore further, the following supplements have partial expert support (2-3 out of 5 experts take them) and generally favorable safety profiles, though with weaker human evidence:

• NMN or NR — If you are interested, read our NMN vs NR comparison first. Understand that the human RCT evidence for clinical endpoints is still preliminary.
• Glycine — Taken by several experts for sleep support. 2-3g before bed.
• Taurine — Taken by Johnson and Stanfield. A 2023 study in Science generated interest in taurine and aging.

What to Avoid Until You Have the Basics

Do not start with the expensive, controversial supplements (rapamycin, resveratrol, fisetin) while neglecting exercise, sleep, and basic nutrition. Every expert on this list would agree: the foundation matters more than the frontier.

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Research and Medical Disclaimer

The information in this article is provided for educational and informational purposes only. It is not intended as medical advice, diagnosis, or treatment. This article reports on the publicly stated opinions and practices of named experts and researchers. Their protocols are personalized and should not be copied without consulting a qualified healthcare provider.

All health information should be discussed with your doctor before making changes to your supplement regimen, diet, exercise routine, or medication.

CoreStacks is a journalism and curation platform. We report what experts say. We do not make original health claims or prescribe treatments.

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Frequently Asked Questions

Which longevity expert should I follow if I can only pick one?

It depends on your evidence threshold and budget. If you want the most conservative, evidence-based approach, Brad Stanfield’s minimalist stack offers the best cost-to-evidence ratio. If you want a moderate approach with broader supplement coverage, Peter Attia’s framework of prioritizing exercise, sleep, nutrition, and emotional health — with selective supplementation — is widely respected. For a deeper comparison, see our full expert stack comparison.

Do all longevity experts agree that NMN works?

No. This is one of the biggest disagreements in the field. David Sinclair and Andrew Huberman take NMN. Peter Attia has never taken it, citing insufficient human evidence. Brad Stanfield dropped it and now recommends low-dose niacinamide instead. Bryan Johnson takes both NMN and NR. See our NMN vs NR article for the complete breakdown.

How much does a longevity supplement stack cost?

The range is enormous. Brad Stanfield’s evidence-based minimalist stack costs approximately $30-50/month. Andrew Huberman’s full stack runs approximately $300-500/month. Bryan Johnson’s complete Blueprint protocol costs over $2 million per year, though his supplements alone are a fraction of that. The expert consensus supplements (omega-3, vitamin D, creatine, magnesium) can be covered for under $75/month.

Is Bryan Johnson’s Blueprint protocol realistic for normal people?

No. Johnson himself has acknowledged that Blueprint is an experiment with extraordinary resources. His protocol involves a full-time medical team, daily blood testing, dozens of prescription medications, and experimental procedures. The supplement components of his stack can be examined and selectively adopted, but the full protocol is not designed for replication.

Why did so many experts stop taking metformin?

The primary concern is that metformin may interfere with exercise adaptations — specifically, it appears to blunt mitochondrial biogenesis triggered by aerobic exercise. Since all five experts agree that exercise is more important than any supplement or drug, most have decided the tradeoff is not worthwhile. Peter Attia has been the most explicit about this reasoning. The TAME trial results may shift this calculus.

What is the cheapest effective longevity supplement stack?

Based on expert consensus, the highest-value stack at the lowest cost includes: omega-3 fish oil (1-2g EPA+DHA), vitamin D3 (1,000-5,000 IU based on blood levels), creatine monohydrate (5g/day), and magnesium (200-400mg elemental). This can be sourced for approximately $30-50/month and covers the supplements where expert agreement is strongest.

Should I take rapamycin for longevity?

This is a prescription immunosuppressant with real risks, and expert opinion is divided. Peter Attia takes it under medical supervision and has discussed the rationale extensively. Brad Stanfield believes it should only be used within clinical trials. No expert on this list recommends rapamycin for the general public without physician supervision. If you are interested, discuss it with a physician who understands the longevity context.

Where do Huberman’s sponsor relationships affect his recommendations?

Huberman has sponsor relationships with AG1 (Athletic Greens), Momentous supplements, and other brands. He has stated that he personally uses these products, but the financial relationships are relevant context. When evaluating any sponsored recommendation, consider whether experts without that financial relationship make the same recommendation. In the case of AG1, Brad Stanfield — who has no relationship with the company — has argued that greens powders are unnecessary for most people.

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Keep Reading

• Build the consensus longevity stack for under $100
• Advanced stacks under $200 with expert picks
• How much does a longevity stack actually cost?
• Are expensive supplements worth the premium?
• Rapamycin Longevity Research 2026: The Most Controversial Anti-Aging Drug

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Sources and Further Reading

Expert Sources Referenced:

• Andrew Huberman — Huberman Lab podcast episodes, newsletter, and public interviews (Stanford University)
• Peter Attia — The Drive podcast, Outlive: The Science and Art of Longevity (2023), and newsletter
• David Sinclair — Lifespan: Why We Age and Why We Don’t Have To (2019), published research, and podcast appearances
• Bryan Johnson — Blueprint protocol (blueprint.bryanjohnson.com), podcast interviews, and YouTube channel
• Brad Stanfield — YouTube channel, published research, PEARL trial documentation

Related CoreStacks Articles:

• Andrew Huberman’s Complete Supplement Stack 2026
• Every Longevity Expert’s Supplement Stack Compared — 2026
• NMN vs NR: What Longevity Experts Actually Recommend in 2026
• Brad Stanfield’s Evidence-Based Supplement Protocol 2026
• Peter Attia’s Longevity Protocol 2026
• Bryan Johnson Blueprint Protocol: Complete Breakdown 2026
• Best NMN Supplements 2026: Where to Buy
• Best Omega-3 Fish Oil Supplements 2026

Research Citations:

• EPA and depression meta-analysis: Liao Y, et al. Translational Psychiatry. 2019;9(1):190.
• Exercise and mortality: Pedisic Z, et al. British Journal of Sports Medicine. 2020;54(24):1499-1503.
• Sleep and mortality: Yin J, et al. Sleep Medicine Reviews. 2023;67:101731.
• Creatine position stand: Kreider RB, et al. Journal of the International Society of Sports Nutrition. 2017;14:18.
• Taurine and aging: Singh P, et al. Science. 2023;380(6649):eabn9257.
• Metformin and exercise blunting: Konopka AR, et al. Aging Cell. 2019;18(1):e12880.
• Slc12a8 NMN transporter: Grozio A, et al. Nature Metabolism. 2019;1(1):47-57.

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This article is part of our Expert Comparison series. We track and report on what the leading longevity researchers publicly state about their personal protocols. All information is attributed to named sources. We update these articles when experts change their publicly stated positions.