Andrew Huberman's Supplement Stack: What's Evidence-Based and What Isn't

Andrew Huberman is a Stanford neuroscientist with a genuinely impressive research record and a podcast that has racked up hundreds of millions of downloads. He's also, arguably, responsible for more supplement purchases than almost anyone alive right now. His stack — magnesium threonate, apigenin, inositol, tongkat ali, fadogia agrestis, NMN, AG1, creatine, omega-3s — gets discussed with the kind of conviction that usually accompanies peer-reviewed meta-analyses. Some of it is genuinely well-supported. Some of it… less so. Here's where the human evidence actually stands.

Who Is Andrew Huberman?

Huberman is an associate professor of neurobiology and ophthalmology at Stanford School of Medicine, where he runs the Huberman Lab studying neural plasticity and brain-body interactions. The podcast bearing his name launched in 2021 and quickly became one of the most-listened-to science shows in the world. He is, by any objective measure, a real scientist — not a wellness influencer cosplaying as one.

That distinction matters for what follows. The issue isn't that Huberman is making things up. It's that his enthusiasm for the mechanism behind a compound often outruns the human evidence for that compound. Animal data, in vitro studies, and theoretical pathways get presented alongside limited human trials in a way that can blur the difference between "this is promising" and "this works in people."

What Are People Actually Claiming?

The core claim, broadly, is that Huberman's stack optimizes testosterone, sleep, neurological performance, and longevity. Supplement brands have leaned hard into this framing — a search for "Huberman supplement stack" returns dozens of branded products with his name in the marketing copy. The implied message: this is what a Stanford neuroscientist takes, so it must be elite-tier.

His publicly documented daily stack includes magnesium L-threonate (140 mg), apigenin (50 mg), inositol (900 mg), tongkat ali (400 mg), fadogia agrestis (400–600 mg, cycled), NMN (1–2 g), omega-3 fatty acids (2–3 g EPA), creatine (5 g), vitamin D3 (5,000–10,000 IU), and AG1 as a daily greens base.^[1]

So… Does His Stack Actually Work?

Some of it holds up very well. Some of it has zero human data. And one or two items carry real safety questions that rarely make it into the podcast clips that go viral. Let's go through the big ones.

The Real Studies

Magnesium L-Threonate — This is the strongest item on the list. A 2024 randomized, double-blind, placebo-controlled trial (n=80) found that 1 g/day of magnesium L-threonate for 21 days significantly improved deep sleep and daytime functioning compared to placebo, with objective confirmation via Oura ring data.^[2] Magnesium in general is well-established for sleep quality; the threonate form has better blood-brain barrier penetration than cheaper forms. Verdict: solid.

Omega-3s (EPA/DHA) — Among the most evidence-dense supplements in existence. A meta-analysis of 48 longitudinal studies involving 103,651 participants linked omega-3 intake to roughly a 20% reduction in risk of cognitive decline, with every 0.1 g/day increase in DHA or EPA associated with 8–10% reduced risk.^[3] Cardiovascular benefits are also well-supported. Verdict: genuinely foundational.

Creatine — You probably think of this as a gym supplement, but there's a credible cognitive case too. A 2024 systematic review and meta-analysis of 16 RCTs (n=492) found that creatine monohydrate significantly improved memory and attention, with moderate-certainty evidence for memory effects.^[4] Benefits appear strongest in older adults and people under metabolic stress. Verdict: solid for both body and brain.

Tongkat Ali (Eurycoma longifolia) — A 2022 systematic review and meta-analysis of clinical trials found that tongkat ali does modestly improve serum total testosterone in men.^[5] A 2013 RCT (n=63) also found reductions in cortisol and improvements in mood after four weeks.^[6] Effect sizes are real but modest, and most trials are short. Verdict: probably does something, but don't expect dramatic shifts.

NMN (Nicotinamide Mononucleotide) — A multicenter, double-blind, placebo-controlled RCT (n=80) found that 300–900 mg/day for 60 days significantly raised blood NAD+ levels and improved performance on a six-minute walking test versus placebo.^[7] NMN demonstrably raises NAD+. Whether that translates to meaningful longevity effects in healthy humans is still an open question — we don't have the long-duration trials. Verdict: safe, raises NAD+, anti-aging claims remain speculative.

Apigenin — Huberman recommends 50 mg before sleep, citing its binding to GABA-A receptors. The mechanism is plausible, and chamomile extract (rich in apigenin) has shown sleep benefits in human studies. But direct human RCTs on isolated apigenin supplements are essentially absent — the supporting evidence is extrapolated from animal studies and chamomile research.^[8] Verdict: biologically plausible, human evidence indirect.

Inositol — Legitimate data exists primarily for PCOS, panic disorder, and depression. A randomized, double-blind, placebo-controlled study in pregnant women found myo-inositol significantly improved sleep latency and overall sleep quality versus placebo.^[9] Whether these benefits extend to healthy adults without these conditions is less established. Verdict: promising for specific populations, limited general-population data.

Fadogia Agrestis — There are essentially no human clinical trials for this compound.^[10] The testosterone-boosting data comes entirely from rodent studies. Some animal research raises concerns about testicular toxicity at higher doses. Huberman cycles it, which is prudent — but the honest answer is that nobody knows what it does in humans. Verdict: the weakest and most concerning item on the list.

AG1 — NSF-certified, so it contains what it claims. But a 75-ingredient proprietary blend makes it impossible to evaluate whether individual components are dosed effectively. There is no clinical trial showing AG1 specifically improves health outcomes in already-healthy adults.^[11] At $99/month, you can get every well-evidenced supplement independently for a fraction of the cost. Verdict: safe, possibly convenient, not evidence-based at the dose level.

Here's the Fine Print

Most of Huberman's recommendations are built on mechanistic reasoning: this compound affects this pathway, which is involved in this process. That's legitimate science — but mechanism-to-outcome is not a straight line. The history of nutrition research is littered with interventions that made perfect mechanistic sense and then failed in human trials. Antioxidant megadosing is the classic cautionary tale. NAD+ is plausible in mice. Whether 1 gram of NMN meaningfully moves the needle on your healthspan is a different question that remains unanswered.

There's also a conflict-of-interest consideration worth noting. Huberman has been an official partner of AG1, and his podcast has been sponsored by supplement brands. He's more transparent about this than most — but even transparent disclosure doesn't fully eliminate the downstream effect on which topics get airtime and for how long.

Who's Actually Going to Notice a Difference

People who are genuinely magnesium-deficient — a surprisingly large fraction of the population, particularly those who don't eat many leafy greens, legumes, or nuts — may notice meaningfully improved sleep within weeks of supplementing. The same applies to vitamin D deficiency, which has robust human evidence and is extremely common, particularly in northern latitudes and among people who spend most of their time indoors.

For the testosterone stack — tongkat ali and fadogia — healthy men with normal testosterone are unlikely to see dramatic changes. Men with clinically low testosterone, or those under chronic stress and significant sleep deprivation, may see modest improvement with tongkat ali specifically. Fadogia remains an unknown.

Creatine benefits are clearest in older adults, vegetarians (whose baseline creatine intake is lower), and people who are frequently sleep-deprived. If you eat red meat regularly and sleep eight hours a night, the cognitive delta is probably modest.

Let's Kill Some Myths

"It's science-backed because a Stanford scientist takes it." Huberman's personal stack is his own n=1 experiment. Credentials don't change what the published data says — or doesn't say — about fadogia agrestis.

"AG1 can replace a poor diet." No evidence supports this claim. If your diet is poor, you need a better diet, not an expensive green powder with undisclosed ingredient doses.

"NMN will slow your aging." It raises NAD+. Whether that slows aging in humans is unknown. The mouse studies are genuinely interesting; the human longevity evidence doesn't exist yet.

"The whole stack works synergistically." Possibly, in theory. In practice, stacking 10+ compounds makes it impossible to attribute effects to specific ingredients, and the interaction data is essentially nonexistent.

If You Want to Try It

The best-supported items from his stack, without the hype markup:

• Magnesium (Threonate or Glycinate) on Amazon — The most evidence-backed item on his list. Look for Magtein (magnesium L-threonate) or magnesium glycinate.
• Browse on iHerb — Often cheaper than Amazon for this.
• Fullscript — Professional-grade magnesium options.

Heads up: The Amazon link is an affiliate link — we earn a small cut if you buy through it, at no extra cost to you.

Verdict

Huberman's stack isn't snake oil — it's a mix of genuinely well-evidenced compounds (magnesium threonate, omega-3s, creatine, vitamin D) alongside several items where the human evidence ranges from thin to nonexistent (apigenin as a standalone, fadogia, NMN for longevity). He's not misleading people intentionally. But the podcast format rewards confident explanation of mechanisms, and mechanisms are not outcomes. If you're going to spend money on this stack, start with the magnesium — it's the item most likely to produce something you'll actually notice.

Quick Answers

Does Andrew Huberman's supplement stack actually work?

Parts of it are well-evidenced — magnesium threonate, omega-3s, and creatine have solid human RCT support. Others, like fadogia agrestis, have no published human trials at all. The stack is not uniformly evidence-based.

Is fadogia agrestis safe?

Unknown. There are no published human clinical trials. Animal studies raise potential concerns about testicular toxicity at higher doses. Huberman cycles it; if you try it at all, that caution seems warranted given the lack of safety data.

What's the most evidence-backed supplement in Huberman's stack?

Magnesium L-threonate has the strongest direct human RCT evidence for sleep. Omega-3s (EPA/DHA) have the largest overall evidence base for cardiovascular and cognitive health. Creatine is well-supported for both muscle and cognitive performance.

Does NMN extend lifespan in humans?

No human evidence exists for lifespan extension. NMN demonstrably raises blood NAD+ levels in humans, and short-term RCTs show some improvements in physical performance. Whether that translates to anti-aging effects in healthy people remains unknown.

Is AG1 worth the cost?

AG1 is NSF-certified and safe. But at ~$99/month, the proprietary blend makes it impossible to verify effective doses of any individual ingredient. You can get the well-evidenced components of Huberman's stack individually for significantly less.

References

1. FastLifeHacks. (2026). Andrew Huberman's Supplement List (with Dosages) 2026. https://fastlifehacks.com/andrew-huberman-supplements-list/
2. Hausenblas, H.A., Lynch, T., Hooper, S., Shrestha, A., Rosendale, D., & Gu, J. (2024). Magnesium-L-threonate improves sleep quality and daytime functioning in adults with self-reported sleep problems: A randomized controlled trial. Sleep Medicine X, 8, 100121. doi:10.1016/j.sleepx.2024.100121. https://pubmed.ncbi.nlm.nih.gov/39252819/
3. Yassine, H.N., et al. (2023). The relationship of omega-3 fatty acids with dementia and cognitive decline: meta-analysis of 48 longitudinal studies, n=103,651. The American Journal of Clinical Nutrition. https://doi.org/10.1016/j.ajcnut.2023.05.032
4. Forbes, S.C., et al. (2024). The effects of creatine supplementation on cognitive function in adults: a systematic review and meta-analysis. Frontiers in Nutrition, 11, 1424972. (16 RCTs, n=492). https://pubmed.ncbi.nlm.nih.gov/39070254/
5. Leisegang, K., Finelli, R., Sikka, S.C., & Selvam, M.K.P. (2022). Eurycoma longifolia (Jack) Improves Serum Total Testosterone in Men: A Systematic Review and Meta-Analysis of Clinical Trials. Medicina, 58(8), 1047. https://pmc.ncbi.nlm.nih.gov/articles/PMC9415500/
6. Talbott, S.M., Talbott, J.A., George, A., & Pugh, M. (2013). Effect of Tongkat Ali on stress hormones and psychological mood state in moderately stressed subjects. Journal of the International Society of Sports Nutrition, 10, 28. (n=63). https://pmc.ncbi.nlm.nih.gov/articles/PMC3669033/
7. Yi, L., et al. (2022). The efficacy and safety of β-nicotinamide mononucleotide (NMN) supplementation in healthy middle-aged adults: a randomized, multicenter, double-blind, placebo-controlled, parallel-group, dose-dependent clinical trial. GeroScience. (n=80). https://pmc.ncbi.nlm.nih.gov/articles/PMC9735188/
8. Kramer, D.J., & Johnson, A.A. (2024). Apigenin: a natural molecule at the intersection of sleep and aging. Frontiers in Nutrition, 11, 1359176. https://pmc.ncbi.nlm.nih.gov/articles/PMC10929570/
9. Mashayekh-Amiri, S., et al. (2022). The impact of myo-inositol supplementation on sleep quality in pregnant women: a randomized, double-blind, placebo-controlled study. The Journal of Maternal-Fetal & Neonatal Medicine, 35(18), 3415–3423. doi:10.1080/14767058.2020.1818225
10. WebMD. Fadogia Agrestis — Uses, Side Effects, and More. https://www.webmd.com/vitamins-supplements/fadogia-agrestis; LiveMomentous. Tongkat Ali vs. Fadogia Agrestis: Key Things to Know. https://www.livemomentous.com/blogs/all/tongkat-ali-vs-fadogia-agrestis
11. Jarry, J. (2024). You Probably Don't Need that Green AG1 Smoothie. McGill Office for Science and Society. https://www.mcgill.ca/oss/article/critical-thinking-health-and-nutrition/you-probably-dont-need-green-ag1-smoothie

The content on this site is for informational purposes only and is not medical advice. Always consult a qualified healthcare professional before making decisions about your health.