Side-by-side comparison of mechanisms, dosing, interactions, and stacking potential.
| Alpha Lipoic Acid (ALA) | Phosphatidylserine | |
|---|---|---|
| Category | Supplements | Supplements |
| Standard Dose | 300-600mg R-ALA daily | 100-300mg daily |
| Timing | On 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 Duration | ongoing or cycle 12 weeks on, 4 weeks off | Ongoing; no cycling required. Clinical benefits observed from 6-12 weeks. |
| Evidence Level | strong_human | strong_human |
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+).
300-600mg R-ALA daily
On empty stomach, 30-60 min before meals. Split doses for higher amounts.
ongoing or cycle 12 weeks on, 4 weeks off
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.
100-300mg daily
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.
Ongoing; no cycling required. Clinical benefits observed from 6-12 weeks.
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