Ashwagandha is a plant that has been used to treat fatigue and improve well-being. Its root and berry can be taken as a pill, powder, or extract.
2 to 5 grams once per day
What Research Shows
Editorial process and description of evidence categories can be found at EBSCO NAT Editorial Process.
It is likely safe to take small doses of ashwagandha for a short period of time. Not enough studies have been done to say whether it is safe to use for a long period.
Talk to your doctor about any supplements or therapy you would like to use. Ashwagandha can interfere with treatment or make conditions worse, such as:
A1. Ahmad MK, Mahdi AA, et al. Withania somnifera improves semen quality by regulating reproductive hormone levels and oxidative stress in seminal plasma of infertile males. Fertil Steril. 2010;94(3):989-996.
A2. Gupta A, Mahdi AA, et al. Efficacy of Withania somnifera on seminal plasma metabolites of infertile males: a proton NMR study at 800 MHz. J Ethnopharmacol. 2013;149(1):208-214.
Last reviewed July 2019 by EBSCO NAT Review Board Eric Hurwitz, DC
Last Updated: 9/9/2019
EBSCO Information Services is fully accredited by URAC. URAC is an independent, nonprofit health care accrediting organization dedicated to promoting health care quality through accreditation, certification and commendation.
This content is reviewed regularly and is updated when new and relevant evidence is made available. This information is neither intended nor implied to be a substitute for professional medical advice. Always seek the advice of your physician or other qualified health provider prior to starting any new treatment or with questions regarding a medical condition.
To send comments or feedback to our Editorial Team regarding the content please email us at firstname.lastname@example.org. Our Health Library Support team will respond to your email request within 2 business days.