Ashwagandha Benefits for Men and Women

📖 23 min read · Classical sources: Charaka Samhita, Sutrasthana 4 (Balya Mahakashaya) and Chikitsasthana 1 (Rasayana); Sushruta Samhita; Ashtanga Hridaya; Bhavaprakasha Nighantu · Modern context: peer-reviewed reviews and clinical trials on Withania somnifera for stress, sleep, strength and reproductive health, plus safety case reports

Ashwagandha Benefits: The Short Answer, Before Anything Else

Ashwagandha is a warming, grounding root that classical Ayurveda uses to rebuild a depleted body and settle an overstretched nervous system. The Charaka Samhita classes it as balya (strength-giving), brimhaniya (nourishing), rasayana (rejuvenating) and vajikarana (reproductive tonic). Its taste is bitter, astringent and sweet; it is unctuous and warming; and it pacifies vata and kapha while it can raise pitta if overdone.

So the honest one-line answer to what are the benefits of ashwagandha for men and women is this: it is a rebuilder. Classically it is given for weakness, wasting, poor sleep, low reproductive strength and the slow erosion that stress and age bring, in both men and women. The modern reputation for stress relief and better sleep is real and reasonably well studied. The classical emphasis on strength and tissue-building is the older half of the same herb, and the two halves meet in one place.

The rest of this article is the part the "10 benefits" lists leave out: why a herb named after a horse is also named after sleep, what Charaka actually promises it rebuilds, and where the modern evidence is solid, thin or genuinely worth worrying about.

The Horse and the Sleep: A Herb Named Twice

Start with the name, because it holds the whole argument. Ashva is horse, gandha is smell. The fresh root has a distinct horsey, almost musky odour, and that is the surface reason for the name. The deeper reason, repeated across the tradition, is that the root confers a horse's strength, ashvavad balam. A pile of the synonyms carry the same animal: vajigandha, turagagandha, hayagandha, each a different word for horse. The plant is named, over and over, for power and stamina.

Then the botanist arrived and named it somnifera, sleep-bearing, after its calming, sleep-friendly reputation. Two naming traditions looked at one root and saw opposite things. One saw a stallion. The other saw a good night's rest.

This is not a contradiction to be explained away. It is the single most useful thing to understand about ashwagandha, because both names are describing true effects, and both effects come from the same underlying action. Hold the puzzle for now. The classical profile below resolves it cleanly.

Charaka's Verse: What Ashwagandha Is Built to Rebuild

The Charaka Samhita's line on ashwagandha is compact and specific, and it names exactly what the herb is meant to restore. In the Chikitsasthana, ashwagandha is described as destroying the kshaya, the depletion or wasting, of four things: bala (strength), pushti (nourishment or bulk), shukra (reproductive tissue) and ojas. It removes vata and kapha. It is sweet in its post-digestive effect, strongly bitter, and warming.

Read that as a job description. Ashwagandha is not aimed at a symptom. It is aimed at a state, the state of having run down, of strength and flesh and reproductive vigour and steadiness all thinning together. That is the classical picture of chronic depletion, and it maps almost too neatly onto the modern one: the tired, wired, under-recovered, poorly-sleeping person who has been running on empty for months. Charaka's word for what has been lost is kshaya. Ours is burnout. The herb is pointed at the same hole.

Balya Mahakashaya: Where Charaka Files Ashwagandha

Charaka organises hundreds of herbs into fifty groups of ten, the Mahakashayas, each named for a dominant action. Ashwagandha's home group is the Balya Mahakashaya in Sutrasthana 4, the ten herbs that build bala, strength and resilience. Its companions there are the classical tonics: Bala, Atibala, Rishyagandha, Payasya, Sthira and the rest. Good company, and a clear statement of what Charaka thought the root was for.

It also sits among the brimhaniya herbs, the ones that add bulk and substance to the body. Put the two classifications together and the classical intent is unambiguous. Ashwagandha is a builder. It is filed with the substances you reach for when a body needs to be made stronger and fuller, not lighter or cleared out. Our guide to the structure of the Charaka Samhita lays out how these Mahakashaya groups sit inside the text.

The later nighantus agree and add detail. Bhavaprakasha calls it vata-kapha-pacifying, useful in kshaya (depletion), shotha (swelling) and shwitra (a skin condition), strengthening, rejuvenating, and atishukrala, strongly increasing reproductive tissue. The same herb, the same direction, across the three great texts and the pharmacopoeias that followed.

Rasa, Guna, Virya, Vipaka: The Profile That Explains Everything

Ayurveda describes a substance by four coordinates, and for ashwagandha they line up into a very coherent picture:

Coordinate	Ashwagandha	What it means in practice
Rasa (taste)	Tikta (bitter), kashaya (astringent), madhura (sweet)	Bitter and astringent to clear and tone; sweet to nourish and build
Guna (quality)	Laghu (light), snigdha (unctuous)	Unctuous, so it lubricates the dry; light enough to digest well
Virya (potency)	Ushna (hot)	Warming, so it moves and kindles rather than cools and sedates
Vipaka (post-digestive)	Madhura (sweet)	Ends sweet, which in Ayurveda is the taste of nourishment and building
Dosha effect	Pacifies vata and kapha; raises pitta in excess	A remedy for dryness and heaviness; a caution for heat

Notice the shape of it. Sweet and unctuous and building, so it nourishes. Warming and slightly bitter, so it does not clog the way a purely sweet, heavy tonic would. And above all vata-pacifying. A dry, mobile, cold, erratic quality is the signature of aggravated vata, and every coordinate here opposes it: unctuous against dry, warm against cold, grounding against mobile, sweet against depleted.

That single fact, vata pacification, is where the horse and the sleep finally meet.

Ojas: The One Idea That Reconciles Strength and Calm

Here is the resolution the two names have been waiting for. In classical physiology, ojas is the final, most refined product of digestion and tissue-building, the essence drawn from all seven dhatus. When ojas is full, a person is strong, steady, immune and unshakeable. When ojas thins, whether through overwork, stress, illness or age, the person becomes weak, anxious, sleepless and easily frightened. Depleted ojas looks like both physical weakness and mental unsteadiness, because it is one substance underlying both.

Ashwagandha is the classical herb for rebuilding ojas. And once you see that, the horse and the sleep stop being opposites. The stallion's strength and the good night's rest are two faces of restored ojas. A body with full ojas is strong, which the horse-name captures. A nervous system resting on full ojas is calm and sleeps well, which the somnifera-name captures. One root, one deep action, two surface effects that only looked contradictory because English has no single word for the thing being rebuilt.

The mechanism underneath is vata pacification. Aggravated vata is the dry, fast, depleting force that produces both the wasting and the anxiety. Ground it, warm it, lubricate it, feed it, and the body rebuilds and the mind settles at the same time. If you want the framework, our guide to tridosha in the Ashtanga Hridaya sets out how vata behaves and why grounding it does so much at once. Ashwagandha's rasayana cousin, shilajatu, works a different angle on the same goal of restored vitality.

Ashwagandha for Men: Vajikarana, Shukra and the Testosterone Question

Ashwagandha's reputation as a men's herb is old and earned. Classical Ayurveda calls it vajikarana, a reproductive tonic, and atishukrala, strongly increasing shukra, the reproductive tissue. In the classical frame, shukra is the last and most precious of the seven tissues, and a herb that builds it is prized for vigour, fertility and the steadiness that comes with full reserves.

Modern research has looked hard at this, and the picture is moderately encouraging. Several trials in men report improvements in sperm count, motility and quality, and some report modest rises in testosterone, particularly alongside resistance training. Reviewers add the usual caution: the trials are often small, run on specific standardised extracts, and last only weeks to a few months. So the fair reading is that the classical vajikarana claim has real, if early, modern support, and that the effect sizes are useful rather than dramatic.

The honest line to hold is the one that separates the word from the number. Ayurveda says vajikarana and atishukrala, which is the territory of reproductive strength. It never promised a testosterone percentage, because it had no blood test. When an advertisement welds a precise hormone figure onto a Sanskrit word, it is borrowing the tradition's authority for a claim the tradition never made.

Ashwagandha for Women: Why It Was Never a Men-Only Herb

The marketing skew toward men obscures something the texts are clear about: ashwagandha is a general balya rasayana, and its core actions, strength, nourishment, vata-pacification and better sleep, have nothing to do with sex. A depleted, anxious, poorly-sleeping woman fits the classical indication as squarely as a depleted man does, and the balya and rasayana classifications apply to everyone.

Modern trials on stress, anxiety and sleep have included women and found the same benefits reported in mixed populations. Ashwagandha has also been studied for a few women's concerns such as sexual wellbeing and some menopausal complaints, with early and limited evidence. The reasonable position is that women stand to gain from the same rebuilding and calming action men do, and that the fertility and reproductive claims made for women are less settled than the general stress and sleep ones.

Stress, Sleep and Cortisol: The Somnifera Side, Read Classically

The modern reason most people reach for ashwagandha is stress, and this is the corner where the clinical evidence is strongest. Ashwagandha is the best-studied of the Ayurvedic adaptogens. Multiple randomised trials and several meta-analyses report reductions in perceived stress and anxiety, often alongside a fall in cortisol, the body's main stress hormone. Trials on sleep report better sleep quality and efficiency, especially in people whose sleep was poor to begin with. The active compounds credited with this are the withanolides.

Read through the classical lens, none of this is a surprise. Chronic stress in Ayurveda is a vata-aggravating, ojas-depleting process, the dry restless overactivity that wears a person down. A warm, grounding, ojas-building root is the textbook counter to it. The classical texts even credit ashwagandha with nidrajanana, promoting sleep, which is the somnifera-name showing up in Sanskrit clothes.

One nuance is worth stating plainly, because the marketing gets it slightly wrong. Ashwagandha is warming and building, so it does not calm you by sedating you the way a heavy nightcap would. It calms you by refilling the reserve and grounding the overactivity. The rest that follows is a consequence of feeling resourced, which is a steadier and more sustainable kind of calm than sedation.

Strength and Endurance: The Balya Claim in the Gym

The oldest claim, that ashwagandha gives the strength of a horse, has walked into the modern gym and been tested there. Studies on muscle strength, endurance and aerobic capacity, usually run over eight to twelve weeks on trained or training individuals, report moderately positive results: improvements in maximal strength, in muscle recovery, and in measures such as maximal oxygen uptake in some trials.

This is one of the cleaner cases of a classical classification predicting a modern finding. Charaka filed ashwagandha under balya, the strength-givers, two thousand years before anyone measured a one-rep max. The modern strength trials land in the same place the classical file did. The effect is real and useful rather than transformative, which is exactly what "a tonic taken over weeks" should produce.

Ksheerapaka: How the Texts Actually Take It

The classical method of taking ashwagandha is worth knowing, because it differs from the modern capsule in a way that matters. The traditional form is the root as churna, a fine powder, taken with warm milk, often with a little ghee and sugar or jaggery. Simmered into milk, the preparation is a ksheerapaka, a milk decoction.

The milk is not a flavour choice. Milk is itself brimhana and balya, nourishing and strengthening, and it carries the fat-soluble parts of the root and deepens the building action. For a herb whose whole job is to rebuild depleted tissue, pairing it with the most nourishing everyday vehicle in the pantry is the method doing the same work as the herb. A dry capsule swallowed with water delivers the withanolides; it drops the vehicle that classical practice treated as half the point.

The classical dose is measured in spoons of churna rather than milligrams of extract, and it is taken as a course, with attention to digestion, food and rest around it. Which is a useful reminder that the tradition never treated ashwagandha as a stimulant to grab on a rough morning. It treated it as a slow rebuild.

Withanolides, KSM-66 and mg Doses: What the Texts Do and Do Not Say

The modern supplement speaks a different language from the classical text, and it helps to translate carefully in both directions.

The withanolides are real chemistry. The calming, adaptogenic and neuroprotective effects that trials report are largely credited to a family of compounds called withanolides, concentrated in standardised root extracts. The texts had no word for withanolides, so they never claimed them. They described the same root as balya, rasayana and vata-pacifying, which is the behaviour of that chemistry seen from the outside.

The branded extracts are a modern invention, not a classical one. Most good trials use a specific standardised extract, dosed at a few hundred milligrams a day of a defined withanolide concentration. That standardisation is genuinely useful for research and for reproducible effects, and it is also completely foreign to Charaka, who worked with whole root churna and milk. Neither approach is wrong. They are answering different questions. When a label cites "clinically studied," check that the study used that same extract at that same dose, because the evidence is extract-specific and does not automatically transfer to any powder in a jar.

Where the classical word and the modern number genuinely align, stress and strength and reproductive tissue, we will say so. Where a claim runs past both the texts and the trials, we will say that too.

Who Should Not Take Ashwagandha: The Safety Section Listicles Skip

Ashwagandha is generally well tolerated at standard doses, and most healthy adults who take a reasonable amount of a decent product for a limited period do fine. But it is a pharmacologically active root, not a gentle food, and a few real cautions deserve more attention than the benefit lists give them.

• The liver. There are documented case reports of ashwagandha-associated liver injury, sometimes at higher doses or with prolonged use, presenting with symptoms like fatigue, nausea, dark urine and jaundice, usually within weeks and usually reversible after stopping. It is rare, but it is real. Anyone with existing liver disease should avoid it, and anyone who develops these symptoms on it should stop and see a doctor.
• The thyroid. Ashwagandha can raise thyroid hormone levels. That may help some people with a sluggish thyroid, but it is a genuine hazard for anyone with an overactive thyroid or on thyroid medication, in whom it can push hormone levels too high.
• Pregnancy and breastfeeding. Advised against in pregnancy for possible effects on the uterus, and in breastfeeding for lack of data. Covered above, repeated here because it matters.
• Autoimmune conditions. Because it can stimulate parts of the immune system, people with autoimmune diseases such as rheumatoid arthritis, lupus or multiple sclerosis should be cautious and take medical advice first.
• Hormone-sensitive conditions and medications. Its testosterone effect is a caution in hormone-sensitive prostate cancer, and it can interact with sedatives, immunosuppressants, and blood-sugar and blood-pressure drugs. If you take regular medication, clear it with your doctor.
• Duration and quality. Long-term safety beyond about three months is poorly studied, so courses with breaks are wiser than indefinite daily use, and product quality varies widely, so a tested, traceable source matters.

What the Classical Texts Do Not Say About Ashwagandha

A few claims get attached to "ancient Ayurveda" that the classics never actually made:

• No cortisol. The texts describe vata-pacification and ojas-building, not a stress hormone. The cortisol story is a modern measurement of the same effect, and a good one, but it is not a classical claim dressed in old words.
• No "just a calming sedative." Classical ashwagandha is warming and building. It settles you by rebuilding and grounding, not by sedating. The framing of it as a mild tranquilliser gets the mechanism backwards.
• No milligram dose or branded extract. Charaka worked with whole root churna in milk, by the spoon, as a course. The standardised few-hundred-milligram capsule is a modern research tool, useful but not classical.
• No promise it is safe for everyone forever. The tradition used it in context, with attention to constitution and state, and it never treated any rasayana as a permanent daily supplement for all comers. The liver, thyroid and pregnancy cautions are modern findings, and they are the responsible update to an old confidence.

What the texts do give is a clear filing among the strength-givers, a precise rasa-guna-virya-vipaka profile, a target in kshaya and depleted ojas, and a method built around milk and patience. That turns out to predict the modern evidence unusually well. It is simply not the same as a capsule that promises a calmer week by Friday.

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Frequently Asked Questions

What are the benefits of ashwagandha according to Ayurveda? +

Classical Ayurveda classes ashwagandha as balya (strength-giving), brimhaniya (nourishing), rasayana (rejuvenating) and vajikarana (a reproductive tonic). The Charaka Samhita describes it as reversing the kshaya, the depletion, of bala (strength), pushti (nourishment), shukra (reproductive tissue) and ojas, while pacifying vata and kapha. In plain terms, it is a rebuilder for a run-down body and an overstretched nervous system. The modern reputation for stress relief, better sleep and physical strength maps onto that classical picture rather than adding something new, because a warm, grounding, ojas-building root naturally settles stress and rebuilds strength at the same time.

Is ashwagandha good for both men and women? +

Yes. Its core actions, strength-building, nourishment, vata-pacification and better sleep, apply to everyone regardless of sex. The marketing skew toward men comes from its classical reputation as vajikarana, a reproductive tonic that increases shukra, and from modern trials on male fertility and testosterone. But the balya and rasayana classifications are general, and studies on stress, anxiety and sleep have included women with similar benefits. The one firm exception is pregnancy and breastfeeding, where ashwagandha is advised against and should not be self-prescribed.

Why is ashwagandha named after a horse? +

Ashva means horse and gandha means smell, and the fresh root has a distinctly horsey odour, which is the surface reason. The deeper reason, repeated across the tradition, is that the herb confers a horse's strength, ashvavad balam. Several of its Sanskrit synonyms, such as vajigandha and hayagandha, also mean horse. So the name points in two directions at once: the literal smell of the root, and the classical promise of equine strength and stamina, which is exactly what the texts use it to rebuild.

Does ashwagandha actually reduce stress and improve sleep? +

This is where the modern evidence is strongest. Ashwagandha is the best-studied of the Ayurvedic adaptogens, and several randomised trials and meta-analyses report reductions in perceived stress and anxiety, often with a fall in cortisol, and improvements in sleep quality, especially in people who slept poorly to begin with. Read classically, this fits: chronic stress is a vata-aggravating, ojas-depleting state, and a warm, grounding, ojas-building root counters it. One nuance: it works by rebuilding and grounding rather than sedating, so the calm is a steadier kind than a sedative gives.

Does ashwagandha increase testosterone? +

Some trials in men, particularly alongside resistance training, report modest increases in testosterone and improvements in sperm count, motility and quality. The evidence is early, the studies are often small and use specific standardised extracts, and the effect sizes are useful rather than dramatic. Classically, this fits the labels vajikarana and atishukrala, meaning a reproductive tonic that increases shukra. But the texts never quantified a hormone, so any advertisement citing a precise testosterone percentage as ancient Ayurveda is attaching a modern number to a classical word that never carried one.

How do you take ashwagandha the traditional way? +

The classical form is the root as a fine powder, churna, taken with warm milk, often with a little ghee and sugar or jaggery, and sometimes simmered into the milk as a ksheerapaka. The milk is not just a carrier for taste; milk is itself nourishing and strengthening in Ayurveda, so it deepens the herb's building action. It is taken as a course over weeks, with attention to digestion and rest, rather than as a one-off pick-me-up. The modern capsule of standardised extract delivers the active withanolides but drops the milk vehicle that classical practice treated as part of the method.

Can ashwagandha damage the liver? +

There are documented case reports of ashwagandha-associated liver injury, usually at higher doses or with prolonged use, presenting with symptoms such as fatigue, nausea, dark urine and jaundice, generally within weeks and usually reversing after stopping. It is rare, but it is real, and it is one reason to use a tested product at sensible doses, take breaks rather than using it indefinitely, and avoid it entirely if you have existing liver disease. Anyone who develops those symptoms while taking it should stop and see a doctor promptly. This is a genuine caution the benefit lists tend to skip.

Who should not take ashwagandha? +

Avoid it in pregnancy and breastfeeding, and if you have liver disease or a thyroid disorder, unless a doctor specifically directs otherwise, since it can raise thyroid hormone levels. Be cautious with autoimmune conditions such as rheumatoid arthritis, lupus or multiple sclerosis, because it can stimulate the immune system, and with hormone-sensitive prostate cancer, because it can raise testosterone. It can also interact with sedatives, immunosuppressants, and blood-sugar and blood-pressure medications, so anyone on regular medication should check with their doctor before starting.

How long does ashwagandha take to work? +

It is a rebuilder, not a stimulant, so it works over weeks rather than hours. Most stress and sleep trials run for six to twelve weeks, and strength trials over eight to twelve, which is roughly the window in which people report noticeable change. This matches the classical view of it as a rasayana taken as a course to refill a depleted reserve, which is slow work by nature. Long-term use beyond about three months is not well studied, so courses with breaks are wiser than indefinite daily use.

What is the difference between whole ashwagandha powder and a standardised extract? +

Whole root churna is the classical material: the ground root, taken with milk, carrying the full range of the plant's compounds in their natural proportions. A standardised extract is a modern preparation concentrated to a defined percentage of withanolides and dosed in milligrams, which is what most clinical trials use because it is reproducible. Both are legitimate. The practical point is that trial evidence is often specific to a particular extract at a particular dose, so "clinically proven" on a label only carries weight if the product matches the studied extract. The classical tradition worked entirely with the whole root and milk.

The Horse and the Rebuild

Two naming traditions looked at one root and disagreed. One heard a horse and saw strength. The other reached for Latin and saw sleep. Both were right, and the thing they were both circling was ojas, the reserve of steadiness and vitality that a depleted life burns through and a rasayana refills.

That is the useful frame to carry past the marketing. Ashwagandha is a rebuilder. Charaka filed it with the strength-givers, aimed it at the wasting of strength, flesh, reproductive tissue and ojas, and had it taken slowly, with milk, as a course. The modern evidence for stress, sleep and strength lands almost exactly where that classical file pointed, which is a rare and satisfying agreement between a two-thousand-year-old text and a randomised trial.

And the same seriousness that praised it should govern how it is used. It is warming, so it is not for every constitution. It can touch the liver and the thyroid, so it is not for every body. It is off-limits in pregnancy. Take those cautions with the same weight as the benefits, and ashwagandha earns its long reputation. Read a classical account of ashwagandha benefits and you get both halves: the horse, and the discipline the horse was always ridden with.

If you want to see where this herb sits inside the text as a whole, our guide to the structure of the Charaka Samhita lays out the eight sthanas and where the Balya group and the Rasayana chapter fall.

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