Comparison
Magnesium Glycinate vs Ashwagandha
Magnesium Glycinate
Chelated magnesium with high bioavailability and minimal laxative effect. The de facto sleep magnesium.
Ashwagandha
Withania somnifera, the most clinically validated herbal adaptogen for stress and anxiety. Reduces serum cortisol by roughly 28% at 600 mg/day over 8 weeks. Modest evidence for sleep quality and testosterone in men. Choose the KSM-66 extract for the best-studied form.
| Field | Magnesium Glycinate | Ashwagandha |
|---|---|---|
| Category | neuroprotective | adaptogen |
| Dose range | 200–400mg | 300–600mg |
| Half-life | — | 6h |
| Onset | — | — |
| Evidence | EVIDENCEB | EVIDENCEA |
| Safety | ●●●●● | ●●●●● |
| Legal (US) | USOTC | USOTC |
| PubMed refs | 1200 | 650 |
The comparison in plain English
Auto-generated from dataMagnesium Glycinate and Ashwagandha are both in the neuroprotective (neuroprotective) and adaptogen respectively. Magnesium Glycinate Chelated magnesium with high bioavailability and minimal laxative effect. Ashwagandha Withania somnifera, the most clinically validated herbal adaptogen for stress and anxiety.
Bottom line
Magnesium Glycinate (evidence B, safety 5/5) has a stronger evidence base than Ashwagandha (evidence A, safety 5/5). Magnesium Glycinate has the slightly cleaner safety profile. For users new to either, the higher-evidence option is the safer first try.
Choose Magnesium Glycinate if
Magnesium Glycinate is the better fit when your goal aligns with its mechanism (Magnesium chelated with glycine for high bioavailability and minimal laxative effect) and the dose range (200–400mg) suits your protocol. Half-life is —h.
Choose Ashwagandha if
Ashwagandha is the better fit when your goal aligns with its mechanism (Withanolides modulate GABA-A receptors and blunt the HPA-axis cortisol response) and the dose range (300–600mg) suits your protocol. Half-life is 6h.