What Two New Studies Reveal About Dietary Spermidine
Two new 2026 studies from the Danish POLYCAD cohort found that higher dietary spermidine intake was associated with better cardiorespiratory fitness, leaner body composition, and greater mitochondr...
October's Harvest: Seasonal Foods for Longevity
There is a particular kind of wisdom in October. The light turns golden, the air sharpens, and nature does something quietly remarkable: it lets go of what it no longer needs so it can renew. Trees...
What Is the Best Spermidine Supplement? A 2026 Comparison Guide
The best spermidine supplement is one that pairs a clean, whole-food source with transparent testing and a formulation your body recognizes. On those measures, Primeadine by Oxford Healthspan ranks...
How Much Spermidine Do You Actually Need?
If you've been researching spermidine for more than ten minutes, you've probably hit a wall of contradictory numbers. One brand claims 10mg per serving. Another leads with 800mg. A third talks abou...
Primeadine GF chlorella vs. standard chlorella supplements: What's the difference?
Not all chlorella is created equal, and the differences between what we use in Primeadine GF and a standard chlorella supplement are significant.
New research from Oxford University: Evidence for spermidine and immune cell renewal
For the first time, researchers have new human data on something long observed in the lab: spermidine's ability to support renewal in aging immune cells. A pilot study from the University of Oxford...