Is Ashwagandha Safe to Take Daily? How Long, When and How to Stop

Ashwagandha root extract has been taken every day in placebo-controlled trials for 6 to 12 weeks, and in a few for up to 180 days: across 23 trials of a standardised root-only extract in 2,317 healthy adults at 125 to 600 mg a day, liver, kidney, blood, hormone and heart markers stayed within normal ranges.¹ Nobody has studied years of use, no trial has compared daily use with cycling, and the published liver-injury cases, about 25 people in 13 reports to the end of 2025, typically began 2 to 12 weeks after starting; a few months at a trial dose with a review point is what the evidence covers.^{2, 3} Who must not take it is on who should not take ashwagandha; the benefits evidence is in the Wellgard ashwagandha guide.

What happens if you take ashwagandha every day?

Over a typical 6 to 12 weeks, stress and anxiety scores fell more than placebo in pooled analyses of 9 to 12 small trials, at low certainty, while a 12-week trial of 400 mg a day in older overweight adults found no difference from placebo on perceived stress.^{4, 5} In the most quoted trial, 64 stressed adults on 600 mg a day for 60 days saw cortisol fall about 28% against 8% on placebo: the one study, on a manufacturer-supplied extract, behind "lowers cortisol by 30%".⁶ Two unexpected changes: thyroxine rose by 0.61 µg/dL across 23 pooled trials with TSH unchanged, so anyone with a thyroid condition or on levothyroxine or liothyronine needs their prescriber's agreement, and fasting glucose fell by about 0.2 mmol/L at very low certainty, relevant only on glucose-lowering medicines.^{7, 8} Trial side effects were mild: drowsiness, stomach upset, loose stools, headache.¹

How long can you stay on ashwagandha?

As long as the trials ran: 6 to 12 weeks in most, 180 days at the longest, and 80 healthy adults on 600 mg a day for 8 weeks showed no change in liver or thyroid tests.^{1, 9} The "not more than three months" rule misreads a US agency's note that studies up to about three months found no safety concerns: a description of the evidence, not a limit. Beyond six months the position is unstudied, so review at 8 to 12 weeks: has anything measurable changed? The published liver cases began 2 to 12 weeks in, were cholestatic with jaundice and itching, resolved within 1 to 5 months of stopping, and the three deaths were all in people with existing cirrhosis; dark urine, pale stools, itching, yellow skin or eyes, nausea or pain under the right ribs mean stop and see a GP that day.^{3, 2} Anyone with liver disease or heavy alcohol use should not take it, and the trials screened out liver disease, so they cannot exclude rare injury.

How much ashwagandha a day did the trials use, and is 250 mg safe?

240 to 600 mg a day of a standardised root extract, most often 300 mg twice daily or 240 to 250 mg once daily, for 6 to 12 weeks; the safety review covered 125 to 600 mg.^{10, 6, 1} The 240 mg once-daily trial ran 60 days in 60 stressed adults and found lower anxiety scores and morning cortisol than placebo, so 250 mg sits inside the studied band, with the same cautions.¹⁰ Above 600 mg a day there are only small studies, a 46-man trial at 675 mg and an open-label study stepping 18 volunteers up to 1,250 mg, so no upper amount has been set.^{15, 16} Read extract milligrams, not the "equivalent to whole root" figure a 10:1 extract allows.

Should you take ashwagandha in the morning or at night?

No trial has compared morning with evening doses; twice-daily trials split the dose across the day. If it makes you drowsy, the commonest trial side effect, take it in the evening; if a late dose leaves you wired or dreaming vividly, move it to the morning. "Sleepy or energised?" has both answers: in five pooled trials of 400 people, 600 mg a day for 8 weeks or more brought sleep on minutes sooner with better alertness on waking, and the 12-week trial with no stress difference found less fatigue.^{11, 5}

Do you need to cycle ashwagandha or take breaks?

No trial has compared continuous with cycled use and every efficacy trial dosed continuously, so "five days on, two off" and "two weeks on, two off" are forum practice, not findings. A planned break after a review point tells you more than a ritual: stop, note what changes over two to four weeks, decide.

What happens when you stop taking ashwagandha?

For most people nothing noticeable: the trials ended without a taper and reported no withdrawal, though none looked for it. One published case describes it: a 20-year-old man who stopped 600 mg a day abruptly developed a racing heart, insomnia and anxiety within days, with normal heart, liver and thyroid tests; the authors proposed a withdrawal effect and allowed that his underlying anxiety may have returned.¹² Nothing has tested tapering, so stepping down over a week or two is sensible; tell your GP if your original symptoms return hard, and never stop a prescribed antidepressant or sleeping medicine at the same time. A minority describe feeling flat or unmotivated, sometimes for weeks after stopping; the trials measured anxiety scales, not emotional range, and what to do is on what does ashwagandha do for the brain. A suspected reaction can be reported to your local authority's trading standards or environmental health team, which works with the Food Standards Agency.

Can you take it every day with magnesium, vitamin D, other supplements or medicines?

Magnesium and vitamin D: no interaction has been reported in trials or case reports; magnesium's daily-use questions are on is it OK to take magnesium every day and its medicine spacing on what should you not take with magnesium. Lion's mane: no study of the pair; see ashwagandha vs lion's mane. Medicines belong to the safety page: thyroid hormones, sedatives, anti-seizure medicines, antidepressants, immunosuppressants, diabetes and blood-pressure medicines all warrant a pharmacist's advice first; in pregnancy, breastfeeding, under 18, with autoimmune disease or before surgery it is not taken at all.

What do UK and European regulators say about taking it daily?

Denmark's National Food Institute concluded in 2020 that no safe intake could be set for the root or its extracts, and it is prohibited in Danish supplements; the Dutch public-health institute advised against supplements and teas on 8 March 2024; the French food-safety agency advised on 19 April 2024 that pregnant or breastfeeding women, under-18s and people with thyroid, androgen, liver or heart disorders or on sedatives should not take it, without a ban; Germany's risk-assessment institute said on 10 September 2024 that children, pregnant and breastfeeding women and people with liver disease should not take it, calling the data insufficient. The UK Food Standards Agency ran a call for evidence from 8 July to 2 September 2024 and published its summary of the 19 responses on 25 June 2026; the Committee on Toxicity discussed its third draft statement on 8 September 2026, for publication shortly.^{13, 14} So on 9 October 2026 it is legal in UK supplements, assessment unfinished, and not "banned across Europe": Denmark alone prohibits it.

Frequently asked questions

Why can't you take ashwagandha every day?

You can, within the trial pattern: a standardised root extract at 240 to 600 mg a day for a few months with a review point.¹ The "can't" belongs to the groups on the safety page: pregnancy and breastfeeding, under-18s, liver disease or heavy drinking, thyroid conditions or medicine, immunosuppressants, sedatives, autoimmune disease and surgery.

Is it good to take ashwagandha before bed?

The sleep trials, compared in the Wellgard sleep guide, gave 600 mg a day split morning and evening, not a single bedtime dose.¹¹ If it makes you drowsy, the evening dose is the one to keep; if it keeps you awake, it is not.

What should ashwagandha be taken with?

Food or a drink, to spare the stomach. Alcohol is the one thing to keep it away from: the liver cases cluster in people with existing liver disease.

Is it safe to take ashwagandha pills every day?

Capsules, gummies and powders differ in what a serving delivers, not in kind: for capsules and powders, read the extract milligrams and set them against the 240 to 600 mg trial band; gummies state their serving on the pack; the same review point and cautions apply to all three; in a sleep blend, how to choose a melatonin-free sleep supplement reads the other lines.

Sources

1. Coope OC, et al. Back to the roots: safety and tolerability of standardised ashwagandha (Withania somnifera) root extract in healthy adults, a systematic review of biomarkers and adverse events. Pharmaceuticals, 2026. PubMed 42198398.
2. McIntyre D, et al. Ashwagandha (Withania somnifera)-associated liver injury: a scoping review of clinical characteristics and safety considerations. Cureus, 2026. PubMed 42367407.
3. Björnsson HK, et al. Ashwagandha-induced liver injury: a case series from Iceland and the US Drug-Induced Liver Injury Network. Liver International, 2020. PubMed 31991029.
4. Akhgarjand C, et al. Does ashwagandha supplementation have a beneficial effect on the management of anxiety and stress? A systematic review and meta-analysis of randomized controlled trials. Phytotherapy Research, 2022. PubMed 36017529.
5. Smith SJ, Lopresti AL, Fairchild TJ. Exploring the efficacy and safety of a novel standardized ashwagandha (Withania somnifera) root extract in adults experiencing high stress and fatigue in a randomized, double-blind, placebo-controlled trial. Journal of Psychopharmacology, 2023. PubMed 37740662.
6. Chandrasekhar K, Kapoor J, Anishetty S. 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 Journal of Psychological Medicine, 2012. PubMed 23439798.
7. Fornalik M, et al. Hormonal modulation with Withania somnifera: systematic review and meta-analysis of randomized-controlled trials. Planta Medica, 2026. PubMed 41740946.
8. Farrin N, et al. The effects of ashwagandha (Withania somnifera) supplementation on fasting blood glucose and HbA1c: a systematic review and dose-response meta-analysis of randomized controlled trials. Diabetes Research and Clinical Practice, 2026. PubMed 42641800.
9. Verma N, et al. Safety of ashwagandha root extract: a randomized, placebo-controlled study in healthy volunteers. Complementary Therapies in Medicine, 2021. PubMed 33338583.
10. Lopresti AL, et al. An investigation into the stress-relieving and pharmacological actions of an ashwagandha (Withania somnifera) extract: a randomized, double-blind, placebo-controlled study. Medicine, 2019. PubMed 31517876.
11. Cheah KL, et al. Effect of ashwagandha (Withania somnifera) extract on sleep: a systematic review and meta-analysis. PLoS One, 2021. PubMed 34559859.
12. Holzman A, et al. Unmasking potential withdrawal effects of ashwagandha: a case report and review. Cureus, 2025. PubMed 40476122.
13. Food Standards Agency. Summary of responses to call for evidence on ashwagandha, 25 June 2026. gov.uk.
14. Committee on Toxicity. 8th September 2026 meeting: third draft statement on ashwagandha (TOX/2026/30). gov.uk.
15. Ambiye VR, et al. Evid Based Complement Alternat Med, 2013. Randomised pilot, 46 men, 90 days; funding not stated. PubMed 24371462.
16. Raut AA, et al. J Ayurveda Integr Med, 2012. Open-label dose-escalation study, 18 healthy volunteers, 30 days; publicly funded. PubMed 23125505.