The 7 Best Longevity Supplements 2026
The 7 most evidence-backed supplements to extend healthspan in 2026. NMN, omega-3, magnesium, creatine, vitamin D, spermidine and glycine. Doses and brands.
Supplementation doesn't compensate for a poor lifestyle. But once the fundamentals are in place — sleep, movement, real food — certain compounds have solid scientific evidence for extending healthspan. These are the 7 we recommend in 2026, ranked by evidence, not hype.
Executive summary
Longevity stack 2026
| Precio |
“My personal stack is simple: vitamin D, omega-3, magnesium, NMN and resveratrol. Nothing exotic. Evidence-based, adjusted to my biomarkers. Don't chase the latest compound — build on solid fundamentals.”
1. Omega-3 (EPA/DHA) — The foundation
Nordic Naturals Ultimate Omega
Omega-3 fatty acids have the strongest evidence for cardiovascular prevention, cognition and systemic inflammation reduction. Nordic Naturals is the purity standard.
Why: reduces inflammation, improves cardiovascular health, protects cognition. The VITAL study (25,000+ participants) showed 28% reduction in fatal heart attacks.
Dose: 2–3 g EPA+DHA daily, with food. Prioritize triglyceride over ethyl ester form.
2. Magnesium Glycinate — The multiplier
Thorne Magnesium Bisglycinate
Cofactor in 300+ enzymatic reactions. Best evidence/cost ratio supplement for sleep, recovery and nervous system regulation.
Why: improves sleep latency and quality (17 min less to fall asleep per 2021 meta-analysis). Glycine adds GABAergic effect.
Dose: 300–400 mg elemental magnesium, 30–60 min before bed.
3. Vitamin D3 + K2 — The silent deficiency
Thorne Vitamin D/K2 Liquid
70% of Europeans and Americans have suboptimal vitamin D levels. Combination with K2 (MK-7) optimizes absorption and directs calcium to bones, not arteries.
Why: immune regulation, bone health, hormonal modulation. Optimal blood levels: 40–60 ng/mL.
Dose: 2,000–5,000 IU daily based on blood levels. Ideal to measure 25(OH)D every 6 months.
4. Creatine Monohydrate — Not just for the gym
Creapure® Creatine Monohydrate
The most studied supplement on the planet. Beyond physical performance: recent research shows significant cognitive benefits in people over 45.
Why: muscular strength, sarcopenia prevention, and increasing evidence in cognitive function. Fundamental after 45.
Dose: 5 g daily. Any time of day. Consistency > timing.
5. NMN — The NAD+ precursor
ProHealth Longevity NMN
Direct precursor to NAD+. NAD+ levels drop 50% between ages 20 and 60. Restoration has growing evidence for energy, metabolism and aging markers.
Why: NAD+ restoration to activate sirtuins and cellular repair. Moderate but growing evidence.
Dose: 500–1,000 mg/day, morning on empty stomach. More studied alternative: NR (Tru Niagen, 300 mg).
6. Spermidine — The wheat germ molecule
Oxford Healthspan Primeadine
Natural compound that induces autophagy (cellular cleanup). Found in wheat germ, aged cheese and soy. Extracted and concentrated in a supplement.
Why: Austrian studies show correlation with lower cardiovascular mortality and better long-term cognition. The mechanism (autophagy) is well understood.
Dose: 1–2 mg/day with food. Effect is measured in years, not weeks.
7. Glycine — The forgotten amino acid
BulkSupplements Pure Glycine
Non-essential amino acid with deep benefits: improves deep sleep quality, reduces core body temperature and has GABAergic properties.
Why: improves deep sleep (Japanese studies 2007, 2012). Lowers core body temperature ~0.5°C, facilitating sleep onset.
Dose: 3 g in water or tea, 30 min before bed. Sweet taste, very palatable.
What's NOT on this list (and why)
Popular supplements we deliberately omit due to insufficient evidence or unfavorable risk/benefit:
- Resveratrol: disappointing human evidence vs. yeast studies (Sinclair keeps it for conviction)
- MCT oil: only useful in strict ketogenic diets
- Collagen: body digests it to individual amino acids. Better to take complete protein.
- Ashwagandha: works but has hormonal effects — not for chronic use
- Berberine: effective for glucose but requires medical supervision
- TMG, Fisetin, Apigenin: promising but evidence still preliminary
How to build your stack
Month 1: Foundations
- Omega-3 (2 g EPA+DHA)
- Vitamin D3+K2 (2,000 IU adjusted to labs)
- Magnesium glycinate (300 mg)
Month 2: Add
- Creatine (5 g)
- Glycine (3 g pre-sleep)
Month 3+: Advanced optimization
- NMN or NR (based on preference)
- Spermidine (if budget allows)
Total full stack cost: $80–130/month
Thorne — 10% off with AEVUM10
Thorne Research offers 10% off first purchase for Aevum readers. Brand used by Mayo Clinic and Olympic teams.
AEVUM10Verdict
“If you could only start with three: omega-3, magnesium glycinate and vitamin D3+K2. The base of any serious longevity protocol.”
Aevum Briefing
Every week: one protocol, one evidence analysis and what matters in longevity. No noise. Straight to your inbox.
Complete protocols, curated stacks and in-depth biomarker analysis.
Las fuentes incluyen instituciones médicas, revistas peer-reviewed y organizaciones de investigación. Aevum no ofrece consejo médico.
Aevum Briefing
Every week: one protocol, one evidence analysis and what matters in longevity. No noise. Straight to your inbox.
Complete protocols, curated stacks and in-depth biomarker analysis.