Magnesium and Longevity: What Is Established, What Is Speculative

Evidence verdict: Magnesium is essential for normal physiology, and inadequate status can matter clinically, particularly in older adults and people with gastrointestinal disease, diabetes, alcohol dependence, medication-related losses or impaired intake. Observational studies connect lower magnesium status or intake with frailty, DNA-damage markers and mortality in selected populations.…

Omega-3 and Longevity: Mortality, Inflammation, Aging Clocks and Trial Evidence

Evidence verdict: Omega-3 fatty acids have substantial human evidence for cardiovascular and triglyceride-related outcomes, and higher circulating omega-3 status is often associated with lower mortality in observational cohorts. Human lifespan extension remains unproven for omega-3 supplementation. The 2025 DO-HEALTH analysis found small favorable changes in several DNA-methylation aging…

Sulforaphane and Longevity: NRF2, Stress Resistance and Human Evidence

Evidence verdict: Sulforaphane reliably engages stress-response biology, especially KEAP1-NRF2 signaling, and has been tested in many human trials across disease areas. That makes it more than a purely preclinical molecule, but no trial has shown that sulforaphane extends human lifespan or broadly slows aging. A 2026 older-adult study…

Apigenin and Longevity: CD38, NAD Metabolism and the Evidence So Far

Evidence verdict: Apigenin is scientifically interesting because CD38 is a plausible contributor to age-associated NAD decline and apigenin can inhibit CD38 in experimental models. There is no human evidence that apigenin slows aging or extends lifespan. Human studies mainly describe absorption, metabolism and apigenin-containing foods or extracts in…

Quercetin and Longevity: Senolytic Research, Human Studies and Limitations

Evidence verdict: Current human studies leave quercetin unproven as a stand-alone senolytic or longevity therapy. The strongest human senolytic evidence involving it comes from small studies of dasatinib plus quercetin (D+Q), in which the prescription drug dasatinib is an essential part of the intervention. Quercetin-alone studies of blood…

Fisetin and Longevity: Senolytic Claims Versus Human Evidence

Evidence verdict: Fisetin has senolytic activity in preclinical models and is being tested in human aging-related trials, but human trials have yet to confirm senolytic effects in people. Published human evidence remains sparse; a tiny, uncontrolled 2024 biological-age pilot was inconsistent, while the AFFIRM trial (NCT03430037) remained active…

Berberine and Longevity: AMPK, Metabolic Health and the Gap in Human Aging Evidence

Evidence verdict: Berberine can improve some metabolic risk factors in human studies, but there is no clinical evidence that it extends lifespan or has been validated as a human geroprotective therapy. AMPK and other aging-related pathways provide mechanistic plausibility, while heterogeneous trial quality, product variability, gastrointestinal effects and…

Alpha-Ketoglutarate (AKG) and Longevity: Mechanisms, Human Evidence and the Mouse Lifespan Problem

Evidence verdict: A properly controlled 120-person ABLE trial is designed to test CaAKG against DNA-methylation age and functional outcomes; recruitment and feasibility reports describe study progress, while efficacy awaits completed, independently interpreted results. The most publicized human “biological age” result came from a small retrospective, multi-ingredient study without…

Spermidine and Longevity: Autophagy, Human Studies and Remaining Gaps

Evidence verdict: Spermidine is a biologically plausible autophagy-linked geroprotective molecule with strong model-organism evidence and observational human associations. Randomized human evidence remains limited and mixed: the best-known 12-month trial did not improve its primary memory endpoint, so claims that supplementation slows human aging are premature.