Does ashwagandha help with menopause? What the research does and doesn't show

Two randomized, placebo-controlled trials of ashwagandha root extract found improved menopause symptom scores, including fewer hot flash events, over 8 weeks. That's more consistent human evidence than exists for most claims made about this ingredient. Both trials used a concentrated root extract at 600 mg/day — not the plain root powder most capsule products contain, and less than half a typical root-powder capsule's daily amount.

What the evidence doesn't support

It doesn't support ashwagandha as a substitute for menopausal hormone therapy or a doctor's evaluation of menopause symptoms. It doesn't support whole root powder specifically — neither trial below tested it, both used a standardized extract. And a hormone-level shift measured in a trial of perimenopausal or menopausal women doesn't extend to a claim about hormone levels in women who aren't in that life stage; both trials enrolled only women already experiencing menopausal or climacteric symptoms.

What the trials found

A 2021 randomized, double-blind, placebo-controlled trial gave 100 perimenopausal women with climacteric symptoms either 300 mg of a root extract twice daily (600 mg/day) or placebo for 8 weeks; 91 completed the study. Compared with placebo, the extract group's total Menopause Rating Scale score fell significantly across psychological, somato-vegetative and urogenital domains, and menopause-specific quality-of-life scores improved. Serum estradiol rose and FSH and LH fell significantly versus placebo. Serum testosterone showed no significant difference between groups.

A more recent randomized, double-blind, placebo-controlled trial applied the same design to 60 women aged 45-55 with menopausal symptoms, tracking them for 56 days. The published abstract reports the same pattern: total Menopause Rating Scale score fell significantly across all three symptom domains, hot flash events were less frequent, and quality-of-life and perceived-stress scores improved, all versus placebo. Serum estradiol and progesterone rose and FSH and LH fell. This trial's abstract doesn't state the exact milligram dose used, only that it was a root extract.

Both trials are randomized and placebo-controlled — a stronger design than the open-label studies common elsewhere in ashwagandha research — and both point the same direction. Neither tested whole root powder, and neither enrolled women outside perimenopause or menopause, so the results don't tell us anything about premenopausal women or about a different form of the ingredient.

Questions people ask

Does ashwagandha help with hot flashes?

Two placebo-controlled trials found fewer hot flash events with a root extract at 600 mg/day than with placebo. That's the most direct evidence answering this specific question, though it comes from two trials rather than a larger body of research, and neither tested root powder.

Is ashwagandha good for perimenopause?

One of the two trials above specifically enrolled perimenopausal women and found improved symptom scores with a 600 mg/day extract over 8 weeks versus placebo. Again, that's extract, not root powder.

Does ashwagandha increase or lower estrogen?

Both trials measured higher serum estradiol in the treatment group than the placebo group, in women already in perimenopause or menopause. Neither trial tested premenopausal women, so this finding doesn't extend to a general statement about estrogen in women outside that life stage.

Is ashwagandha root good for menopause?

Neither trial tested whole root powder — both used a standardized extract. Whether root powder produces the same result at any dose hasn't been studied.

When to talk to a doctor

Menopause and perimenopause symptoms that are severe, disruptive to daily life, or accompanied by unusual bleeding are worth discussing with a doctor, who can evaluate options including hormone therapy that ashwagandha is not a substitute for. If you're pregnant, trying to conceive, or taking hormone therapy, thyroid medication, or a sedative, talk to a doctor before adding any supplement.

Related reading: what ashwagandha does for women, ashwagandha and cortisol, and ashwagandha and your thyroid.