Alpha Lipoic Acid (ALA) vs Phosphatidylserine

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

Alpha Lipoic Acid (ALA)Phosphatidylserine
CategorySupplementsSupplements
Standard Dose300-600mg R-ALA daily100-300mg daily
TimingOn empty stomach, 30-60 min before meals. Split doses for higher amounts.With meals (fat-containing preferred for absorption). Can be taken morning or evening. Cortisol-blunting effects are relevant for evening/pre-bed dosing in stressed individuals.
Cycle Durationongoing or cycle 12 weeks on, 4 weeks offOngoing; no cycling required. Clinical benefits observed from 6-12 weeks.
Evidence Levelstrong_humanstrong_human

Mechanism

ALA is a dithiol compound that functions as a cofactor for mitochondrial alpha-keto acid dehydrogenases (pyruvate dehydrogenase, alpha-ketoglutarate dehydrogenase). Both ALA and its reduced form DHLA are potent antioxidants capable of regenerating other antioxidants including vitamin C, vitamin E, and glutathione. ALA activates AMPK, improving glucose uptake via GLUT4 translocation, and modulates NF-kB-mediated inflammatory signaling. It chelates redox-active metals (Fe2+, Cu2+).

Standard Dosing

300-600mg R-ALA daily

Timing

On empty stomach, 30-60 min before meals. Split doses for higher amounts.

Cycle Duration

ongoing or cycle 12 weeks on, 4 weeks off

Side Effects

  • GI upset/nausea
  • Skin rash
  • Hypoglycemia symptoms
  • Body odor changes

Contraindications

  • Thiamine (B1) deficiency (ALA increases thiamine demand)
  • Hypoglycemia-prone individuals without monitoring
  • Autoimmune thyroid conditions (monitor thyroid function)

Best Stacking Partners

NACCoQ10Acetyl-L-CarnitineBiotinChromium
B

Phosphatidylserine

Supplements

Mechanism

Major phospholipid component of neuronal cell membranes (15-20% of total phospholipid pool) that maintains membrane fluidity and supports signal transduction. Serves as a cofactor for protein kinase C (PKC), Na+/K+-ATPase, and other membrane-bound enzymes critical for neurotransmitter release. Blunts HPA axis hyperactivation by modulating corticotrophin-releasing factor (CRF) receptor interactions, attenuating cortisol release during physical and psychological stress. Facilitates acetylcholine, dopamine, and norepinephrine release, and enhances glucose metabolism in the brain.

Standard Dosing

100-300mg daily

Timing

With meals (fat-containing preferred for absorption). Can be taken morning or evening. Cortisol-blunting effects are relevant for evening/pre-bed dosing in stressed individuals.

Cycle Duration

Ongoing; no cycling required. Clinical benefits observed from 6-12 weeks.

Side Effects

  • Mild GI upset at high doses
  • Insomnia (if taken too late in some individuals)
  • Rare: nausea
  • GI distress (uncommon)
  • Insomnia (at higher doses)
  • Headache (rare)

Contraindications

  • Soy allergy (if soy-derived — use sunflower-derived instead)
  • Known soy allergy (soy-derived PS)
  • Antiphospholipid syndrome (theoretical concern)

Best Stacking Partners

Omega-3 (DHA)Acetyl-L-CarnitineAlpha-GPCGinkgo BilobaBacopa MonnieriPiracetam

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