Blog
Spermidine: The autophagy activator hiding in common foods
Spermidine triggers autophagy and extends lifespan in every organism tested. Learn the food sources, dosage, and science behind this natural anti-aging polyamine.
Zinc and immune aging: The mineral most adults are deficient in
Zinc deficiency accelerates immune aging and inflammaging. Learn how zinc supports T-cells, thymus function, and biological age with evidence-based dosing.
NMN vs NR: Which NAD+ precursor actually works for longevity?
NMN and NR both boost NAD+ levels, but they differ in absorption, tissue distribution, and clinical evidence. Compare the science behind each precursor.
Antibiotics and aging: How medications disrupt your longevity microbiome
Learn how antibiotics can disrupt the gut microbiome, what recovery can look like, and how to support resilience without avoiding needed treatment.
Fermented foods and biological age: what the Stanford trial really showed
Fermented foods may support microbiome diversity and inflammatory balance. See what the Stanford Cell trial found, what it did not prove, and how to start.
Fiber and longevity: what the evidence says and how to build tolerance
Fiber intake is linked to lower mortality and better gut metabolites. Learn realistic targets, fiber types, butyrate context, and how to increase it safely.
Gut microbiome and aging: How your bacteria determine how fast you age
Gut microbiome dysbiosis is now a hallmark of aging. Learn how your bacteria change with age, what centenarians' microbiomes reveal, and 8 ways to restore gut health for longevity.
Probiotics vs prebiotics vs postbiotics: What actually works for longevity
Probiotics, prebiotics, and postbiotics each affect aging differently. Learn what the evidence says about each, which actually slows biological aging, and how to use them effectively.
Best protein sources after 50: A longevity-focused guide
Best protein sources after 50, ranked by leucine, bioavailability, meal timing, plant vs animal tradeoffs, and muscle-preserving longevity science.