Spermidine and Muscle Loss: What the Sarcopenia and Atrophy Research Shows (2026)
Muscle is an unusually good test case for autophagy-based supplements, because muscle tissue depends heavily on clearing damaged proteins and […]
Spermidine vs. Fisetin: Autophagy Induction vs. Senolytic Clearance (2026)
Spermidine and fisetin show up in the same longevity stacks, the same podcasts and often the same shopping cart, which
Spermidine vs Placebo: What Controlled Trials Show (2026)
“Spermidine vs. placebo” is a more precise question than “does spermidine work,” because it points to a specific type of
Spermidine for Mitochondrial Health (2026)
Mitochondria, the cell’s energy-producing organelles, become progressively less efficient with age, and mitochondrial quality control is one of the specific
Spermidine and Immune System Function (2026)
Immune senescence, the age-related decline in immune cell function that contributes to poorer vaccine response and higher infection risk in
Spermidine Side Effects: Complete Safety Profile (2026)
Spermidine is naturally present in the human diet at meaningful levels, which sets a different safety baseline than compounds with
Spermidine Clinical Trials: What Human Studies Actually Show (2026)
Most of what is known about spermidine comes from cell and animal research, but a small number of randomized, placebo-controlled
What Is Spermidine? The Polyamine Behind the Longevity Buzz
Spermidine is a naturally occurring polyamine found in food that may support healthy aging by activating autophagy. Here’s what the evidence actually says.
Spermidine vs. Rapamycin: Comparing Two Autophagy Activators for Healthspan
Spermidine and rapamycin both activate autophagy via mTOR pathways, but their safety profiles differ sharply. An evidence-based comparison.
Spermidine Supplement Brands Compared: Dose, Source, and Cost Per Mg
Compare leading spermidine supplement brands by dose, source material, and cost per mg to find the best value for your longevity routine.
Spermidine During Pregnancy and Breastfeeding: What the Evidence Actually Shows
Spermidine is naturally present throughout pregnancy, but is supplementing safe? An honest look at what science does and doesn’t tell us.
Spermidine and Liver Health: Autophagy, NAFLD, and Hepatoprotection
Explore what the research says about spermidine and liver health, including its proposed roles in NAFLD, autophagy, lipid metabolism, and ferroptosis protection