Side-by-side comparison of mechanisms, dosing, interactions, and stacking potential.
| Ashwagandha (KSM-66) | CDP-Choline (Citicoline) | |
|---|---|---|
| Category | Adaptogens | Nootropics |
| Standard Dose | 600mg KSM-66 daily (300mg 2x/day) | 250-500 mg/day |
| Timing | Morning and evening with meals. Evening dose supports sleep quality via cortisol reduction. | Morning or split morning/afternoon. With or without food. |
| Cycle Duration | Cycle 8-12 weeks on, 2-4 weeks off (to prevent adaptogenic tolerance) | Ongoing; no cycling required |
| Evidence Level | strong_human | strong_human |
Ashwagandha's primary bioactives are withanolides (particularly withaferin A and withanolide D). KSM-66 is a full-spectrum root extract standardized to >5% withanolides. It modulates the HPA axis by reducing cortisol output (20-30% reduction in trials), likely through GABAergic activity (withanolides are GABA-mimetic at GABA-A receptors) and by normalizing cortisol receptor (GR) sensitivity. It also inhibits the NMDA-induced neurotoxicity pathway, enhances DHEA-S production, promotes thyroid function (increases T4 to T3 conversion), upregulates antioxidant enzymes (SOD, catalase, glutathione peroxidase), and has demonstrated sirtuin-activating properties.
600mg KSM-66 daily (300mg 2x/day)
Morning and evening with meals. Evening dose supports sleep quality via cortisol reduction.
Cycle 8-12 weeks on, 2-4 weeks off (to prevent adaptogenic tolerance)
Prodrug that is hydrolyzed to choline and cytidine upon oral ingestion. Choline supports acetylcholine synthesis and phosphatidylcholine membrane repair. Cytidine is converted to uridine, which enhances synaptic membrane synthesis via the Kennedy pathway and upregulates dopamine receptor density. This dual mechanism — cholinergic support plus dopaminergic modulation — is unique among choline sources.
250-500 mg/day
Morning or split morning/afternoon. With or without food.
Ongoing; no cycling required
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