Can you take Ashwagandha and Melatonin together?
Two sedating compounds together may cause excessive drowsiness. Use reduced doses if combining, and take only before bed.
Severity
Caution
Evidence
limited
Timing
Before bed only, low doses.
How it works
Ashwagandha has GABAergic and cortisol-lowering activity while melatonin acts on MT1/MT2 sleep-wake receptors.
No published studies on this specific combination. Ashwagandha's sedative effect varies by extract (KSM-66 vs Sensoril) and dose. The risk is excessive drowsiness and morning grogginess rather than a serious safety concern.
What to do
Start with the lowest effective dose of each. Drop melatonin to 0.5 mg if adding ashwagandha to your routine. Take 30–60 minutes before bed only.
Frequently asked
Should I separate Ashwagandha and Melatonin?
Consider separating them. Before bed only, low doses. Consult a healthcare professional for personalised advice.
Why do Ashwagandha and Melatonin interact?
Ashwagandha has GABAergic and cortisol-lowering activity while melatonin acts on MT1/MT2 sleep-wake receptors.
How strong is the evidence for this interaction?
The evidence is limited. This interaction is based on theoretical mechanisms or a small number of studies.
About these supplements
Other Ashwagandha interactions
Other Melatonin interactions
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This information is for educational purposes only. It is not medical advice and does not diagnose, treat, cure, or prevent any disease. Always consult a qualified healthcare professional.