Calcium Alpha-Ketoglutarate (Ca-AKG) vs HMB

Side-by-side comparison of mechanisms, dosing, interactions, and stacking potential.

Calcium Alpha-Ketoglutarate (Ca-AKG)HMB
CategorySupplementsSupplements
Standard Dose
Timing
Cycle Duration
Evidence LevelModerate (healthspan), Emerging (human longevity)Moderate

Mechanism

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.

Contraindications

  • Hypercalcemia
  • Kidney stones (calcium component)
B

HMB

Supplements

Mechanism

Leucine metabolite that reduces muscle protein breakdown and may support recovery under high training or caloric deficit conditions.

Contraindications

  • None established at standard doses

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