Black Seed Oil (Nigella sativa) vs Calcium Alpha-Ketoglutarate (Ca-AKG)

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

Black Seed Oil (Nigella sativa)Calcium Alpha-Ketoglutarate (Ca-AKG)
CategorySupplementsSupplements
Standard Dose
Timing
Cycle Duration
Evidence LevelModerateModerate (healthspan), Emerging (human longevity)

Mechanism

Contains thymoquinone as active compound. Anti-inflammatory via NF-kB inhibition, immunomodulatory, hepatoprotective. Improves blood sugar regulation via AMPK activation. Supports respiratory health and has antimicrobial properties.

Contraindications

  • Pregnancy (uterotonic)
  • Pre-surgery (bleeding risk)

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)

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