Shatavari vs Ashwagandha: Key Differences

Quick answer

Shatavari and ashwagandha are both Ayurvedic roots with early findings on menopause and on strength gains with training, but ashwagandha also holds a moderate finding on stress and far more safety research. Ashwagandha trials mostly used 600 mg of extract a day, shatavari trials 100 to 600 mg of extract or 1,000 mg of root powder.^1,2,3,4

Key facts

Two topics overlap and both are graded early for each herb: menopause rating scores, and strength gains with training. Only ashwagandha also has a moderate finding, on stress.^1,4,5
The shatavari evidence is newer and thinner: small trials since 2024, mostly with extract supplied by its maker, and a similar trial retracted on October 1, 2026.^3,6
NIH has fact sheets, an NCCIH page and a LiverTox chapter on ashwagandha. We found none of these for shatavari on October 7, 2026.^1,7,8
Amounts differ: most ashwagandha trials split 600 mg of extract into two doses, while recent shatavari trials most often gave one 300 mg capsule a day for 8 weeks.^2,3
Less documented is not the same as safer. Shatavari trials mostly ran 8 weeks or less, and its safety in pregnancy is unknown, while NIH's complementary health center says to avoid ashwagandha in pregnancy.^3,7

What each one is

Shatavari is the root of Asparagus racemosus, an Ayurvedic herb used in India, and not the vegetable asparagus. Ashwagandha is the root of Withania somnifera, an evergreen shrub whose root has been used in the same tradition for centuries. Supplements of both are made from root extracts or powders. Beyond that the two have very different research records, which is the main thing to know when choosing between them.^1,4

Side by side

Shatavari and ashwagandha compared^{1,2,3,4,9,10,11,12,13,14}
Feature	Shatavari	Ashwagandha
Moderate finding	None	Stress scores and cortisol
Early findings	Menopause rating scores; muscle strength and training workload	Sleep; strength gains with training; menopause rating scores
Typical trial amount	100 to 600 mg of extract, or 1,000 mg of root powder, a day	600 mg of root extract a day, as two 300 mg doses
Trial length	Mostly 6 to 8 weeks, with one 24-week trial	6 to 12 weeks, one of 24 weeks
Who ran and paid for the trials	Mostly extract makers or herbal supplement companies	Often the extract's maker, mostly in India
Pooled analyses	None found for menopause or strength	Several, on stress, sleep, exercise and hormones
Official safety coverage	None found	NIH fact sheets, NCCIH and LiverTox

The like-for-like findings

Two questions can be set side by side because both files answer them: menopause rating scores, and strength gains alongside training. Each pair carries the same grade, early, but the trials behind them differ in size and in who paid for them.

May ease some self-rated discomforts around menopause*^11,15,16,17

Early evidence

Four small randomized trials in India gave women around or after menopause 250 to 600 mg a day of ashwagandha extract for 8 to 24 weeks, and each reported lower scores on menopause rating questionnaires than placebo. One, in 100 women, used 300 mg twice a day for 8 weeks; another, in 60 women aged 45 to 55, also counted fewer hot flashes. Two of the trials found higher estradiol and lower FSH and LH, a sign the extract can act on reproductive hormones.

Amount studied: 250 to 600 mg a day of root or root and leaf extract, for 8 to 24 weeks

May ease self-rated discomforts of the menopause transition, such as hot flashes*^3,5,6,18,19

Early evidence

Small randomized trials in India from 2024 to 2026, with 60 to 135 women each, gave 100 to 500 mg a day of one of several commercial root extracts for 8 weeks. They reported lower menopause rating scores than placebo, including fewer hot flashes. Most used an extract supplied or paid for by its maker, one was written by the maker's own staff, and a similar trial was retracted in October 2026, so the findings need independent confirmation.

Amount studied: 100 to 500 mg a day of standardized root extracts, for 8 weeks

May support strength gains when combined with resistance training*^20,21

Early evidence

Two 8-week trials of a branded root extract at 600 mg a day alongside a resistance training program (57 young men; 80 men and women) reported larger strength gains than placebo; in the first, bench press rose 46 kg against 26 kg. Both were run in India with extract supplied by the maker, and the first enrolled men with little training experience.

Amount studied: 600 mg a day of root extract (300 mg twice a day) for 8 weeks, with resistance training

May support muscle strength and training workload*^4,9,10

Early evidence

Three small randomized trials, all funded by herbal supplement companies, point the same way with mixed results. In 20 women after menopause, 1,000 mg a day of root powder for 6 weeks raised grip strength slightly (0.7 kg, against a 0.4 kg fall on placebo) but not leg strength. In 18 young men doing 8 weeks of bench press training, 500 mg a day of an extract gave a larger rise in one-rep max (14% against 8%). In 39 women doing 8 weeks of leg training, 1,000 mg a day let the older women lift more over the program, but strength at the end did not differ from placebo.

Amount studied: 500 to 1,000 mg a day of root extract or powder, for 6 to 8 weeks

Stress is the one topic with no counterpart. The ashwagandha stress finding is graded moderate and the shatavari file holds none, so for stress there is nothing to compare.

How firm the evidence is

An early grade can hide very different footing. For ashwagandha, NIH reviewed seven stress trials, pooled analyses exist for stress, sleep, exercise and hormones, and they disagree on how firm each result is. For shatavari there are single small trials. The three muscle trials were funded by herbal supplement companies, and the recent menopause trials mostly used an extract supplied or paid for by its maker.^{1,3,4,9,10,12,13}

On October 1, 2026, a journal retracted a 2025 randomized trial of a shatavari extract in women around menopause.⁶

None of this makes the shatavari findings false. It means the same grade deserves a wider margin of doubt, and that independent trials would count for more than another one from a maker.⁶

Amounts, forms and our label

Concentrated root extracts set to contain a minimum level of shatavarins. One trial's extract, with at least 10% shatavarins, was made from about 13 parts of root for each part of extract, so 300 mg came from roughly 3.9 g of root. Each recent trial tested one maker's extract, so a result for one does not carry over to another.³

Two UK trials gave 1,000 mg of root powder a day, as two 500 mg capsules, for 6 to 8 weeks.^4,10

Because studies used different preparations, made with different extraction and standardization methods, NIH says it is hard to name a specific extract or a recommended amount.¹

What’s in ours

Ashwagandha Complex: Shatavari Powder, 50 mg per serving, from the label

What’s in ours

Ashwagandha Complex: KSM-66 Ashwagandha Extract, 600 mg per serving, from the label

Ashwagandha Complex lists both herbs: 600 mg of ashwagandha extract and 50 mg of shatavari root powder. The first matches what ashwagandha trials used. The second is a small fraction of the shatavari trial amounts, so only the ashwagandha findings describe the capsule.^2,3,4

Safety side by side

Cautions for shatavari and ashwagandha^{1,3,4,7,8,15,18}
Feature	Shatavari	Ashwagandha
Length of use studied	Mostly 8 weeks or less	Appears well tolerated for about 3 months; longer is not known
Liver	Liver blood tests did not change in the trials that checked; no LiverTox chapter found	Rare liver injury, usually 2 to 12 weeks after starting; a few cases fatal or needing a transplant
Hormones	Estradiol, FSH and T3 rose in one 8-week trial and stayed normal in another; the root contains plant estrogens	Thyroid hormone levels may change; testosterone may rise in men; two menopause trials reported higher estradiol
Pregnancy and breastfeeding	Safety in pregnancy is unknown; the trials enrolled women around or after menopause	NIH's complementary health center: avoid in pregnancy and do not use while breastfeeding
Medicines named by official sources	None found	Thyroid hormone, blood pressure, diabetes, immune-suppressing, sedative and anti-seizure medicines

Fewer documented problems for shatavari is not evidence that it is safer. It has been studied for shorter periods in fewer people, mostly women around menopause, and no official safety source covers it. If you take thyroid medicine, hormone therapy or hormonal birth control, or have a hormone-sensitive condition, ask a pharmacist or doctor about either herb first.^1,3

Questions people ask

Is shatavari or ashwagandha better for women?

Each file holds a menopause finding graded early, so neither is shown to be better. The ashwagandha one rests on four small randomized trials of 250 to 600 mg a day for 8 to 24 weeks, and the shatavari one on small trials of 100 to 500 mg of extract for 8 weeks, several supplied by the extract's maker.^5,11,15,19

Which has more evidence for strength training?

Neither has much. Two 8-week trials of 600 mg a day of ashwagandha extract with weight training reported larger gains than placebo, and three small shatavari trials of 500 to 1,000 mg a day gave mixed results. Both are graded early.^4,9,10,20,21

Is shatavari safer than ashwagandha?

That has not been shown. Shatavari has less safety research behind it and no official safety page, while ashwagandha has a longer list of documented cautions. Both can interact with hormones, and ashwagandha is to be avoided in pregnancy and while breastfeeding.^1,3,7

Can I take shatavari and ashwagandha together?

Two small trials gave the pair to women around or after menopause. Our pairing page sets out what they used and what to ask first.^11,18

See what we make

Every product shows its whole label and what its lab report covers. The store opens soon.

See the Full Measure line Ashwagandha Complex

Sources

*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

This page is information, not medical advice. Talk to your doctor or pharmacist about your own situation.