Side-by-side comparison of mechanisms, dosing, interactions, and stacking potential.
| Calcium Alpha-Ketoglutarate (Ca-AKG) | Pterostilbene | |
|---|---|---|
| Category | Supplements | Supplements |
| Standard Dose | — | — |
| Timing | — | — |
| Cycle Duration | — | — |
| Evidence Level | Moderate (healthspan), Emerging (human longevity) | Moderate |
AKG is a TCA cycle intermediate that declines with age. Supplementation reduces inflammatory cytokines, improves stem cell function, and extends healthspan in mice. Calcium salt form provides sustained release. Also supports collagen synthesis and reduces frailty markers.
Dimethylated analog of resveratrol with 4x greater oral bioavailability. Activates SIRT1 and AMPK, reduces oxidative stress, and improves lipid profiles. Superior pharmacokinetics compared to resveratrol due to methyl groups protecting against glucuronidation.
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