Ashwagandha: History and Traditional Use

Few herbs are as closely bound to a single healing tradition as ashwagandha is to Ayurveda. For well over two thousand years — and by some accounts much longer — the root of Withania somnifera has been used across the Indian subcontinent as a strengthening tonic, a remedy for weakness and worry, and one of the most prized of all rejuvenating herbs. This article traces what the historical record actually supports: the meaning of the plant's names, its place in the classical Ayurvedic compendia, the traditional ways it was prepared and given, how far it grew beyond India, a genuinely debated question about whether the ancient Greeks knew it, and the moment in 1965 when chemists first named the molecule behind much of its activity. Where the record is firm we say so; where a claim is tradition, folklore, or still argued over, we name it as such.

Table of Contents

  1. The Names of the Horse-Smelling Root
  2. Ashwagandha in Classical Ayurveda
  3. Rasayana: The Rejuvenating Tonics
  4. Traditional Preparations and How It Was Given
  5. A Plant of Many Lands: Botany and Spread
  6. Did the Ancient Greeks Know It? A Debated Question
  7. From Root to Laboratory: Withaferin A (1965)
  8. From Tradition to Modern Research
  9. Research Papers and References
  10. Connections
  11. Featured Videos

The Names of the Horse-Smelling Root

The word ashwagandha comes from Sanskrit and joins two parts: ashva, meaning "horse," and gandha, meaning "smell." The most widely repeated explanation is simply that the fresh root has a distinct, slightly horsey odour. A second, popular reading holds that the name promises the strength and vigour of a horse to whoever takes it. The first explanation — the smell — is the one most botanical and reference sources treat as primary; the "strength of a stallion" reading is best understood as traditional interpretation rather than established etymology, and this page presents it that way.

The botanical name carries its own small history. Withania somnifera sits in the nightshade family, Solanaceae, alongside tomato, potato, pepper, and eggplant. The genus name Withania was published by the French physician and botanist Charles Louis Pauquy in 1825 and is generally said to honour Henry Witham, a British geologist and early writer on fossil plants. The species epithet somnifera is Latin for "sleep-bringing," a name that points straight at the plant's long reputation as a calming, sleep-promoting remedy — a reputation that, as the sections below show, runs through both its Indian and its disputed Mediterranean history.

In English, ashwagandha is also called Indian ginseng — a nickname earned by its role as a general strengthening tonic, not by any botanical relationship to true ginseng (Panax), which belongs to an entirely different plant family. Other English names include winter cherry and simply withania. As with many plants woven deeply into daily life, this spread of names is itself a kind of record: a herb gathers many names only when many communities have reasons to talk about it.

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Ashwagandha in Classical Ayurveda

Ashwagandha's documented career belongs above all to Ayurveda, the traditional medical system of the Indian subcontinent. It is named and described in the classical Ayurvedic compendia — the Charaka Samhita and the Sushruta Samhita, the foundational texts of the tradition — where it appears as a strengthening and rejuvenating remedy. These compendia took shape and were edited over a long span in antiquity, which is why writers describe ashwagandha's recorded use in terms of "over two thousand years" or "more than three thousand years"; the exact figure depends on how one dates the texts, so this page treats the herb's antiquity as genuinely ancient rather than fixing a precise number. The Charaka Samhita and Sushruta Samhita are named here as historical primary texts, not as modern clinical sources.

In the language of these texts, ashwagandha is grouped under several traditional categories that together describe how it was understood. It is a balya (a promoter of strength), a vajikarana or vrishya (an aphrodisiac and reproductive tonic), and a medhya herb (one that benefits the mind and intellect). Above all it is classed as a rasayana — a rejuvenating tonic, the category taken up in the next section. The traditional indications that follow from these categories are broad: general debility and the wasting that comes with age or long illness, nervous exhaustion and sleeplessness, and complaints of reproductive and sexual vitality. Modern reviews of ashwagandha, such as the widely cited overview by Narendra Singh and colleagues, summarise this same inherited picture of the herb as a rasayana and nervine tonic.

It is worth being plain about what this tradition is and is not. The categories above are descriptions of how classical practitioners used and classified the herb; they are not modern medical claims, and a traditional indication is not the same as proven effectiveness. What the Ayurvedic record reliably tells us is that ashwagandha was, for a very long time, one of the central tonic herbs of an entire medical culture — reached for when a person was weak, depleted, anxious, sleepless, or worn down.

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Rasayana: The Rejuvenating Tonics

To understand ashwagandha's standing in its home tradition, it helps to understand the idea of rasayana. Rasayana is one of the classical branches of Ayurveda and refers to a class of remedies and practices aimed at rejuvenation: promoting strength, vitality, resistance to illness, mental clarity, and long, healthy life. A rasayana herb was not thought of as a drug for a single disease so much as a restorative meant to nourish the body as a whole and help it recover its vigour. Ashwagandha is repeatedly named among the most valued herbs in this category.

Within the rasayana group, ashwagandha was particularly associated with the body's structural strength and with the nervous system — it is often described in the tradition and in modern reviews as a nervine tonic, a remedy for the worn-out, depleted, and anxious. This is the conceptual root of the modern label most people now attach to it: adaptogen, a twentieth-century term for substances thought to help the body cope with stress. The two ideas are not identical, and "adaptogen" is a modern framework rather than a classical Ayurvedic one, but it is easy to see why ashwagandha became one of the first herbs the adaptogen concept was applied to: a tradition had already spent centuries describing it as the herb you take to rebuild a tired, over-stressed body.

The honest takeaway is that the rasayana framework explains why ashwagandha was so prized — it sat in the most elite tier of restorative herbs — while reminding us that this was a particular cultural model of health, not a measured pharmacological one. The work of testing those traditional claims against controlled evidence is recent, and is the subject of the final two sections.

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Traditional Preparations and How It Was Given

In traditional practice the part of the plant most used is the root, usually dried and ground to a powder (in Sanskrit, a churna). How that powder was given matters, because the traditional methods say a good deal about how the herb was understood. The most characteristic preparation pairs the root powder with warm milk, often sweetened with honey, jaggery, or ghee (clarified butter). Milk was regarded in the tradition as nourishing and as a fitting vehicle for a strengthening, body-building tonic — an appropriate carrier for a rasayana meant to restore a depleted person.

Beyond the simple milk drink, ashwagandha root was worked into the standard dosage forms of Ayurvedic pharmacy. It was made into medicated ghee and medicated oils, into decoctions (the root simmered in water), and into fermented herbal preparations known as arishtas and asavas. It also appears as an ingredient in named classical formulations rather than always being used alone. The recurring theme across these forms is gentleness and repeatability: like other tonic herbs meant to be taken over weeks or months, ashwagandha was prepared in ways that suited steady, nourishing, long-term use rather than a single dramatic dose.

These preparations are described here as traditional practice. They tell us how the herb was customarily taken in its home tradition; they are not dosing instructions, and the modern standardised root extracts sold today are quite different products from a spoonful of root powder stirred into warm milk.

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A Plant of Many Lands: Botany and Spread

Withania somnifera is a short, hardy, evergreen shrub — typically waist- to chest-high — that thrives in dry, stony, sun-baked ground and disturbed soils. That toughness helps explain its very wide natural range. Although the world now thinks of it as an Indian herb, the plant grows across a broad sweep of warm, dry country: the drier parts of the Mediterranean and southern Europe, North Africa and other parts of Africa, the Canary and Cape Verde Islands, the Middle East and Arabia, and on through Afghanistan, Pakistan, Nepal, Sri Lanka, and India. In other words, ashwagandha is native to a large arid belt, not to India alone.

This geography is the key to a real historical puzzle. A plant that grows wild around the Mediterranean as well as in India could, in principle, have been known and used by several ancient cultures independently — which is exactly the question taken up in the next section. What is not in doubt is where the herb's richest documented medical tradition developed: on the Indian subcontinent, within Ayurveda (and the related Unani system), where it was cultivated, named many times over, written into the classical compendia, and used continuously into the present day. India is also where most ashwagandha is grown commercially today, much of it as a cultivated crop.

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Did the Ancient Greeks Know It? A Debated Question

Because ashwagandha grows wild around the Mediterranean, scholars have asked whether the ancient Greeks and Romans used it too — and here the honest answer is that the matter is genuinely debated, not settled. The case for a Mediterranean history rests on a plant the ancient writers Theophrastus and Dioscorides called struchnos hypnotikos (the "sleep-inducing" nightshade). Some researchers argue that this sleep-bringing nightshade was Withania somnifera, pointing out that the name describes precisely the calming, sleep-promoting effect for which the plant is known — the very quality preserved in its Latin epithet somnifera.

The identification is plausible and is taken seriously, but it is an interpretation of ancient texts, not a certainty. Ancient plant names are notoriously slippery, often covering several different species, and reviewers of the question explicitly note that ashwagandha's presence in ancient Mediterranean medicine "is still the object of discussion." The botanical record is firmer than the medical one: the plant's actual occurrence in Greece was documented by the botanist John Sibthorp, whose Flora Graeca was published in the early nineteenth century, confirming that Withania somnifera does grow there.

The careful conclusion is this: ashwagandha may have been used in the classical Mediterranean world as a sleep remedy, and the argument linking it to struchnos hypnotikos is reasonable — but it is not proven, and anyone who states flatly that "the ancient Greeks used ashwagandha" is reporting a scholarly hypothesis as though it were a fact. The herb's securely documented medical history remains the Indian one.

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From Root to Laboratory: Withaferin A (1965)

For most of its history ashwagandha was used long before anyone could say what was inside it. That changed in the twentieth century, when chemists began isolating and naming the plant's active constituents. The landmark event is well documented: in 1965, the chemists David Lavie, Erwin Glotter, and Youval Shvo — working at the Weizmann Institute of Science in Israel — published the structure of a steroidal lactone they had isolated from Withania somnifera and named withaferin A. Their paper, "Constituents of Withania somnifera Dun. Part IV. The structure of withaferin A," appeared in the Journal of the Chemical Society.

Withaferin A turned out to be the first described member of a whole family of related compounds. Because they came from the genus Withania, this class of C28 steroidal lactones was named withanolides — the group of molecules now considered central to ashwagandha's pharmacology. Dozens of withanolides have since been identified in the plant, but withaferin A was the one that opened the door, and its isolation is the clearest example in ashwagandha's story of a real, named, datable scientific milestone, achieved by named scientists.

It is worth marking the distinction this section turns on. The herbalists and physicians who used ashwagandha for two millennia did not "discover" withaferin A, and the plant has no single human inventor — like every traditional herb, it emerged through the accumulated practice of many cultures. What Lavie, Glotter, and Shvo did was different and specific: they identified and structurally defined one of the molecules responsible for much of the plant's activity. Tradition supplied the herb; modern chemistry supplied its molecular address.

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From Tradition to Modern Research

The story of ashwagandha over the last few decades is the story of a traditional remedy being put to the modern test. Once the withanolides were identified, researchers began asking whether the herb's inherited reputation — as a strengthening, calming, anti-stress tonic — would hold up under laboratory and clinical scrutiny. A turning point in pulling this scattered evidence together was the year 2000 review by L. C. Mishra and colleagues in Alternative Medicine Review, which gathered the chemistry, the claimed therapeutic uses, and the toxicity data into a single widely cited summary and concluded that the herb showed a range of activities with little apparent toxicity.

Since then the research has grown into one of the larger bodies of clinical evidence for any single herb, concentrated on exactly the areas the tradition emphasised: stress and elevated cortisol, anxiety, sleep, and physical and reproductive vitality. That convergence — modern trials clustering around the same uses an ancient tradition named first — is the genuinely striking feature of ashwagandha's history. The detailed evidence, mechanisms, dosing, and cautions are covered in the companion Ashwagandha Benefits articles and on the main Ashwagandha page; this history is concerned only with how the herb came to be used in the first place.

Two honest cautions belong at the end of any history like this. First, a long tradition of use is a reason to investigate a herb, not proof that it works — tradition raises the questions, research tests the answers. Second, modern attention has brought its own findings, including rare reports of liver injury associated with some ashwagandha products, which is why national health bodies advise care and why anyone considering it — especially during pregnancy, alongside thyroid or sedative medication, or with a liver condition — should talk with a clinician. The thread from a spoonful of root powder in warm milk to a standardised capsule in a clinical trial is unbroken; following it carefully, and honestly, is the point of knowing the history at all.

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Research Papers and References

The list below combines key peer-reviewed reviews of Withania somnifera with curated PubMed topic-search links into the historical, ethnobotanical, and phytochemical literature. Historical primary texts (the Charaka Samhita and Sushruta Samhita, and the ancient Mediterranean writings of Theophrastus and Dioscorides) are named in the article as historical sources rather than as modern citations. Author names, titles, and journals are given as plain text; only the stable DOI, PMID, or archive link is hyperlinked, and each opens in a new tab.

  1. Singh N, Bhalla M, de Jager P, Gilca M. An overview on ashwagandha: a Rasayana (rejuvenator) of Ayurveda. African Journal of Traditional, Complementary and Alternative Medicines. 2011;8(5 Suppl):208-213. — PMID: 22754076
  2. Mishra LC, Singh BB, Dagenais S. Scientific basis for the therapeutic use of Withania somnifera (ashwagandha): a review. Alternative Medicine Review. 2000;5(4):334-346. — PMID: 10956379
  3. Lavie D, Glotter E, Shvo Y. Constituents of Withania somnifera Dun. Part IV. The structure of withaferin A. Journal of the Chemical Society. 1965:7517-7531. — doi:10.1039/JR9650007517
  4. Ashwagandha. In: LiverTox: Clinical and Research Information on Drug-Induced Liver Injury. National Institute of Diabetes and Digestive and Kidney Diseases. — NCBI Bookshelf: NBK548536
  5. Withania somnifera history and traditional use — PubMed: Withania somnifera history and Ayurvedic use
  6. Withania somnifera ethnobotany and ethnopharmacology — PubMed: Withania somnifera ethnobotany
  7. Withanolides and withaferin A — phytochemistry — PubMed: withanolides and withaferin A phytochemistry

External Authoritative Resources

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Connections

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