Inositol (Myo-Inositol + D-Chiro-Inositol) vs Phosphatidylserine (PS)

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

Inositol (Myo-Inositol + D-Chiro-Inositol)Phosphatidylserine (PS)
CategorySupplementsSupplements
Standard Dose
Timing
Cycle Duration
Evidence LevelStrong (PCOS, anxiety), Moderate (general metabolic)Moderate-Strong

Mechanism

Secondary messenger in insulin signaling cascade. Myo-inositol improves insulin sensitivity, reduces anxiety (via serotonin receptor modulation), and supports ovarian function. D-chiro-inositol complements by activating glycogen synthesis. 40:1 ratio mimics physiological balance.

Contraindications

  • Bipolar disorder (inositol depletion theory — consult psychiatrist)

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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