Glucoraphanin (Broccoli Seed Extract) vs Phosphatidylserine (PS)

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

Glucoraphanin (Broccoli Seed Extract)Phosphatidylserine (PS)
CategorySupplementsSupplements
Standard Dose
Timing
Cycle Duration
Evidence LevelModerate-StrongModerate-Strong

Mechanism

Stable precursor to sulforaphane. Requires myrosinase enzyme (from gut bacteria or co-administered) for conversion. Provides sustained sulforaphane release compared to direct supplementation. Activates Nrf2 pathway for antioxidant and detoxification gene expression.

Contraindications

  • Thyroid conditions (goitrogen at very high doses)

Mechanism

Phospholipid concentrated in brain cell membranes. Supports neurotransmitter production (acetylcholine, dopamine), cortisol regulation, and membrane fluidity. Improves cognitive function, reduces exercise-induced cortisol, and supports HPA axis recovery.

Contraindications

  • Soy allergy (if soy-derived — use sunflower-derived instead)

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