Supplement Stack

The Longevity Supplement Stack: What 5 Experts Actually Agree On

The short answer

Strip away the hype and the five experts converge on a surprisingly short foundational stack: omega-3, creatine, vitamin D, and magnesium — each backed by 4-5 of them. The molecules that dominate longevity marketing (NMN, resveratrol, metformin) are exactly where they disagree most. This is the evidence-first version: what actually holds up across all five.

Based on expert statements in publicly available videos, not medical advice. Always consult your healthcare provider before starting or changing a supplement.

1. Omega-3 (EPA/DHA)

1-3g combined EPA/DHA daily

with a meal

The single highest-consensus supplement — all 5 experts back it (4.8/5). Attia targets a 12% omega-3 index; Huberman uses 1.5-3g EPA for mood and brain.

2. Creatine Monohydrate

3-5g daily

any time, daily

Unanimous (4.6/5). All 5 recommend monohydrate for muscle, and increasingly brain/aging. No loading phase needed.

3. Vitamin D3 (+ K2)

blood-test guided (commonly 2,000+ IU)

with a fat-containing meal

4 of 5 recommend D3 specifically; Patrick is a strong advocate, Hyman always pairs it with K2. Dose to a blood level, don't guess.

4. Magnesium (glycinate)

300-500mg elemental daily

evening

4 of 5 back it (4.1/5); ~45-50% of people are insufficient. Glycinate for daily use and sleep (see magnesium glycinate vs citrate).

5. Secondary: Glycine, Zinc

glycine 1-3g / zinc 15-30mg

glycine evening; zinc with food

Glycine (4.0/5, all-5 for sleep/longevity) and zinc (4.2/5, 4 of 5) round out the foundation for most people.

The evidence-first takeaway is what this stack leaves out. The experts agree on a foundational few — omega-3, creatine, vitamin D, magnesium (plus glycine and zinc) — because those have the broadest support and the clearest safety. The supplements that dominate longevity marketing are precisely the ones they split on: Attia calls NAD/NMN 'noise,' NR failed the gold-standard ITP mouse trial, and Huberman personally avoids metformin, berberine, and rapamycin for longevity. A real longevity stack is short, cheap, and boring — and every expert agrees the biggest levers aren't in a bottle at all: sleep, resistance training, and Zone 2 cardio outrank every supplement on this page.

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