What the Research Says About Ashwagandha and Menopause
If you've been Googling "why am I so tired / hot / anxious / not sleeping / irritable at 3am," you're not alone.
Perimenopause and menopause are natural phases of life, but "natural" doesn't mean easy. The hormonal shifts during this transition can affect everything from your sleep and mood to your energy, your body temperature, and your sense of self. And while there's no shortage of products claiming to help, there’s one ingredient that we’re watching: ashwagandha, specifically, the widely studied, branded version, KSM-66 Ashwagandha®.
What Is KSM-66 Ashwagandha®?
Ashwagandha (Withania somnifera) is an herb used in Ayurvedic medicine for thousands of years as a "rasayana," a rejuvenating tonic meant to support vitality and resilience. In recent times, it has gained the reputation as an adaptogen (an herb that helps the body adapt to stress), which is backed by a growing body of clinical research.
KSM-66 Ashwagandha® is a specific, concentrated ashwagandha root extract standardized to a minimum of 5% withanolides, the active compounds believed to be behind many of its benefits. It is sustainably produced using a clean, water-based extraction process and is the form used in the clinical research that caught our attention, and that we’re discussing here.
How Ashwagandha Might Support Menopause Symptoms
Two recent randomized, double-blind, placebo-controlled clinical trials (the gold standard in research design) looked specifically at how KSM-66 Ashwagandha® affects women going through perimenopause and menopause. Both used the same dose: 600 mg/day (300 mg twice a day) for 8 weeks.
In a 2021 study, researchers followed 100 perimenopausal women aged 45–60 dealing with symptoms including hot flashes, night sweats, insomnia, and irritability. A second 2026 study enrolled 60 menopausal women aged 45–55 experiencing frequent hot flashes.
Across both studies, women taking KSM-66 Ashwagandha® consistently experienced improvements across three areas: psychological symptoms (mood, anxiety, irritability, mental exhaustion), physical symptoms (hot flashes, night sweats, joint discomfort, fatigue), and urogenital symptoms (vaginal dryness). Women in the placebo groups saw significantly less improvement across the board.
Both studies also measured hormone levels. Women taking ashwagandha showed increases in estradiol and - in the 2026 study - progesterone, alongside reductions in FSH and LH (hormones that typically rise as the ovaries become less active). Importantly, these changes stayed within normal physiological ranges. Researchers suggest ashwagandha's adaptogenic effect on the body's stress-response system may play a role in supporting hormonal balance, though the mechanisms aren't yet fully understood.
Quality of life scores also improved substantially in both studies, including approximately 47% reductions in perceived stress in the most recent trial.
Who Might This Be For?
Based on this research, KSM-66 Ashwagandha® at 600 mg/day may be worth exploring if you're dealing with mild to moderate perimenopausal or menopausal symptoms such as hot flashes, disrupted sleep, mood changes, or fatigue, and you're looking for a plant-based option to support your body during this transition. As always, check with your healthcare provider before starting any new supplement, especially if you're currently taking medication.
The Bottom Line
Ashwagandha has been used for centuries, and while its application in perimenopausal and menopausal health is a relatively recent, it’s genuinely an interesting area of research. The evidence is encouraging, but more research, including larger and longer trials, is needed to build on these findings. Ashwagandha is not a replacement for medical care. If your symptoms are significantly affecting your quality of life, please speak with your healthcare provider about the full range of options available to you.
References
Gopal S, et al. Effect of an ashwagandha (Withania somnifera) root extract on climacteric symptoms in women during perimenopause. J Obstet Gynaecol Res. 2021;47(12):4414–4425.
Vani I, Muralidhar G, Rao BS. A prospective, randomized, double-blind, placebo-controlled study on efficacy and safety of Ashwagandha root extract (Withania somnifera) for managing menopausal symptoms in women. Front Reprod Health. 2026;7:1647721.
KSM-66 Ashwagandha® is a registered trademark of Ixoreal Biomed, Inc.
