Last updated: October 2026
There’s no single best time to take ashwagandha. Most clinical trials split the dose, taking it twice a day with food, often morning and evening. If it makes you drowsy, take it in the evening; if your goal is sleep, evening suits most people. Consistency matters more than timing, and trials ran for 8 to 10 weeks.
Below: morning vs night, what the trials actually did, how much, how long it takes, taking it with food or coffee, and who shouldn’t take it at all.
Morning or night?
| Timing | Suits you if… |
|---|---|
| Morning | You want it as part of a daytime routine and it doesn’t make you sleepy |
| Evening | Sleep is your main goal, or it makes you drowsy |
| Split: morning and evening | You want to copy most of the trials, or the full dose upsets your stomach |
Pick a time you’ll stick to and keep it the same for at least two weeks before changing.
What the trials did
| Study | Dose and timing | Length |
|---|---|---|
| Stress, 2012 (64 adults) | 300mg root extract twice a day | 60 days |
| Stress, 2019 (60 adults) | 125mg or 300mg twice a day | 8 weeks |
| Sleep, 2019 (60 adults with insomnia) | 300mg twice a day with milk or water | 10 weeks |
| Sleep review, 2021 (5 trials, 400 people) | Small benefit, stronger at 600mg a day or more | Stronger at 8 weeks or more |
These are mostly small, single-country trials, often funded by extract makers, so treat them as promising rather than proven. Ashwagandha has no authorised health claims in the UK.
How much to take
Trials mostly used 250 to 600mg a day of a root extract, usually split into two doses. Follow the label, as extract strengths vary a lot, and don’t combine several ashwagandha products. Root extracts are generally preferred to leaf. See ashwagandha side effects.
How long does ashwagandha take to work?
It isn’t instant. Trials measured effects after 8 to 10 weeks, and the sleep review found benefits were clearer after 8 weeks. Give it at least four to eight weeks of daily use before judging it. Many people take breaks after a few months; there isn’t much long-term safety data beyond about three months.
With food, coffee or other supplements?
- Food: take it with a meal or milk to reduce the chance of an upset stomach.
- Coffee: fine to take at the same time of day; no known interaction.
- Magnesium: no known problem combining them. See ashwagandha vs magnesium.
- CBD: often combined, but both can cause drowsiness. See CBD and ashwagandha.
- Sedatives or alcohol: avoid combining, as drowsiness can add up.
Our Flow CBD Oil combines broad spectrum CBD with ashwagandha and maca, and many people take it in the morning or early afternoon.
Who shouldn’t take ashwagandha
- Pregnant or trying to conceive: the FSA advises pregnant women to avoid it while the UK safety review continues.
- Breastfeeding: not recommended. See ashwagandha and breastfeeding.
- Liver problems: the FSA advises people with liver conditions to avoid it. Stop and see a GP if you get yellow skin or eyes, dark pee or itching.
- Thyroid conditions or thyroid medicine: it can raise thyroid hormone levels.
- Diabetes, blood pressure, sedative or immunosuppressant medicines: check with a pharmacist.
- Autoimmune conditions, or before surgery: speak to your doctor.
FAQs
Is it better to take ashwagandha in the morning or at night?
Either works. Most trials split it into a morning and evening dose. Take it at night if it makes you drowsy or sleep is your goal.
Can I take ashwagandha before bed?
Yes. Sleep trials often included an evening dose, and many people find it fits a wind-down routine.
Should I take ashwagandha with food?
Yes, with a meal or milk, to reduce the chance of an upset stomach.
How long does ashwagandha take to work?
Trials measured effects after 8 to 10 weeks. Give it at least four to eight weeks of daily use.
Can I take ashwagandha every day?
Trials used it daily for up to about three months. Long-term safety data is limited, so many people take breaks.
Can I take ashwagandha with coffee?
Yes, there’s no known interaction. Take it with food to avoid an upset stomach.
Sources
- Chandrasekhar K et al. A prospective, randomized double-blind, placebo-controlled study of safety and efficacy of a high-concentration full-spectrum extract of ashwagandha root in reducing stress and anxiety in adults. Indian J Psychol Med, 2012.
- Salve J et al. Adaptogenic and anxiolytic effects of ashwagandha root extract in healthy adults. Cureus, 2019.
- Langade D et al. Efficacy and safety of ashwagandha root extract in insomnia and anxiety. Cureus, 2019.
- Cheah KL et al. Effect of ashwagandha extract on sleep: a systematic review and meta-analysis. PLoS One, 2021.
- Which?. Ashwagandha: stress buster or health risk? (includes the FSA’s statement).
