medo-dhātu: what the term means and how it is translated
medo-dhātu मेदोधातु is an Ayurvedic technical term. It is rendered into English in 4 different ways across 6 sources, which is the reason this page exists: the renderings do not agree, and the difference between them changes what the term is taken to mean.
| Transliteration | medo-dhātu |
|---|---|
| Devanagari | मेदोधातु |
| Also written | meda, medas, medo dhatu, medas dhatu, medodhātuḥ |
| Category, as gathered | dhatu |
| Grouped here under | Body: tissues, wastes and channels |
| Classical citations | 7 |
| Citations checked | 2026-10-08 |
How it is translated, and whether the translation holds
Each rendering is given with the source that uses it. The assessment is ours.
Fat
WHO International Standard Terminologies on Ayurveda · ITA-2.2.9 (Sanskrit: medo-dhātuḥ) · standard
WHO's description adds 'It refers to adipose tissue and other lipids in the body' - a broader referent than adipose alone, and one of the few places WHO commits to a biochemical class.
Reproduced unaltered and attributed from the WHO International Standard Terminologies on Ayurveda, which is what that licence permits. It is deliberately absent from the downloadable dataset, which is offered under CC BY 4.0 and invites the modification a NoDerivs licence forbids.
adeps
Charaka Samhita, tr. Avinash Chandra Kaviratna (1896-1913) · Chikitsasthana XV · translation
Kaviratna's characteristic rendering, using the Latin pharmacopoeial term for lard. Archaic to the point of obscurity now, and worth recording precisely because it shows a translator reaching for a substance term rather than a tissue term.
fat
Charaka Samhita, tr. Avinash Chandra Kaviratna (1896-1913) · Sutrasthana XXVIII; Vimanasthana VIII · translation
He alternates 'adeps' and 'fat' for the same word, sometimes within a paragraph ('from flesh is fat or adeps').
fat
Sushruta Samhita, tr. Kunja Lal Bhishagratna (1907-1916) · Sutrasthana XIV and XV · translation
Consistent. He renders the related vasā as 'fatty matter' and 'oily or albuminous matter', keeping them distinct from medas.
fatty tissue
Modern Ayurvedic journal usage · PMID 42161239, 'medadhatu (fatty tissue)' · journal
The current journal rendering.
adipose tissue
Common modern Ayurvedic teaching · textbook · our paraphrase of the source, not its words
The narrowest rendering in circulation. WHO's own gloss is deliberately wider ('adipose tissue and other lipids').
The classical passages
Each citation gives its address so a reader can check it in a printed edition, our account of what the passage establishes, and the result of reading it against its source.
Sushruta SamhitaSutrasthana 15:corresponds to mula verse 5 · checked against the source
The fat gives rise to the glossiness (formation of oily or albuminous matter) of the body and primarily contributes towards the firmness and growth of the bones.
Medas' two functions: snehana (unctuousness/glossiness) and the nourishment of asthi. The second is the one that gets lost when medas is read as adipose tissue, since adipose tissue is not held to build bone.
Sushruta SamhitaSutrasthana 15:kshaya prose section · checked against the source
The loss of fat is followed by such symptoms as the enlargement of the spleen, a sense of emptiness in the joints, and a peculiar dryness of the skin and a craving for cold and emollient meat.
Medo-kṣaya presenting as splenomegaly and empty joints. Neither has any relation to loss of adipose tissue, and the passage is strong evidence against the simple equation.
Sushruta SamhitaSutrasthana 15:vriddhi prose section · checked against the source
An excess of fat in the body imparts an oily gloss to the skin. The sides of the abdomen are increased in bulk, and the body emits a fetid smell, and the person is assailed with cough and dyspnoea.
Medo-vṛddhi: central adiposity plus body odour plus cough and breathlessness. The nearest a classical sign list in this set comes to a recognisable modern syndrome.
Sushruta SamhitaSutrasthana 15:prose section on obesity (sthaulya) · checked against the source
the growth of the rest of the root-principles of the body such as, lymph chyle, albumen, semen, etc., is considerably arrested owing to the deposit of fatty matter within the channels of the internal passages of the body, thus seriously affecting his bodily strength. An obese or excessively corpulent person is likely to be afflicted with any of the following diseases such as, urethral discharges, eruptions, boils, carbuncles, fever, fistula in ano, or with any of the diseases which are caused by a deranged state of the bodily Vayu ; and such attacks are invariably found to terminate in death.
The srotorodha (channel-obstruction) account of obesity: excess medas physically blocks the channels and starves the later dhātus. This is the mechanism by which the tradition explains why the obese can be simultaneously overnourished and depleted.
Sushruta SamhitaSutrasthana 15:prose section on vasā · checked against the source
This fatty matter (Vasa) predominates in the female organism and produces its peculiar softness, beauty and pleasing shape, causes the growth of scanty but soft hair on its surface. It strengthens the eyesight and increases the energy of the body, improves its power of digestion and heightens its glow and complexion.
Vasā as a distinct substance from medas, with its own functions and a stated sex difference. WHO classes vasā as the upadhātu of māṃsa (ITA-2.3.5), not of medas; Sushruta discusses it in the medas section.
Charaka SamhitaChikitsasthana 15:17 in Kaviratna's marginal numbering · checked against the source
while sweet forms the 'Kitta' of adeps,
Sweat is the waste fraction of medas. The OCR has 'sweet' for 'sweat'; the reading is unambiguous from context and from the parallel lists, but the misprint is left visible here rather than silently corrected.
Charaka SamhitaVimanasthana 8:119 in Kaviratna's marginal numbering; sara section cited as Vi 8/102 ff by carakasamhitaonline · checked against the source
Of men that have the fat as the predominating element in their constitution, the symptoms are a complexion that is oily, a voice that is so, and eyes and hair and bristles and nails and teeth and lips and urine and faeces that are oily.
Medo-sāra as a constitutional type recognised by unctuousness across many sites, including voice and excreta - not by body fat.
Not to be confused with
- vasā
- Muscle fat / intramuscular fat. Classed by WHO as upadhātu of māṃsa (ITA-2.3.5) but discussed by Sushruta within the medas section, with its own functions and a stated female predominance. The classification differs between sources.
- majjā
- Marrow, the fat-like content of bone. Both are unctuous, and the two are adjacent in the chain via asthi. The distinction is site, not substance.
- sneha
- Unctuousness as a quality, and also the oleaginous medicines used in oleation therapy. Medas is the bodily substance; sneha is a property and a drug class.
- kapha
- Shares unctuousness, coldness and heaviness with medas and is routinely implicated with it in sthaulya. A doṣa, not a dhātu, and Sushruta's obesity account runs through channel obstruction and vāyu, not through kapha alone.
- medoroga / sthaulya
- The disease of excess medas, not the dhātu itself. Modern writing often uses 'medas' where it means the disorder.
- mastulunga
- Brain matter, sometimes described as fat-like and occasionally conflated with both medas and majjā in secondary literature.
Renderings that do not hold
- adipose tissue. Too narrow, and WHO's own gloss says so ('adipose tissue and other lipids'). It also makes Sushruta's claim that medas nourishes bone, and that medo-kṣaya presents as splenomegaly and empty joints, unintelligible.
- fat, read as body fat percentage. Medo-sāra is recognised by unctuousness of voice, nails, urine and faeces, not by fatness. Reading medas as an amount of fat discards the entire quality dimension the sāra examination depends on.
- adeps. Kaviratna's Latin pharmacopoeial term for lard. Quotable as a period rendering; unusable now, and it wrongly suggests a purified substance.
- lipid. Occasionally used in clinical papers on the strength of the dyslipidaemia analogy. No classical passage retrieved supports a biochemical class reading, and the analogy is the researcher's, not the text's.
Open questions
Recorded rather than resolved. Each one is something this entry cannot currently settle.
- Whether vasā belongs to māṃsa (WHO ISTA) or to medas (Sushruta's placement) is a live discrepancy between an international standard and a mula text. Neither was retrieved in a form that settles it.
- Sushruta's medo-kṣaya sign of splenomegaly has no explanation in any retrieved source and does not appear to have been discussed in the indexed literature.
- The mechanism by which medas is said to nourish asthi is asserted and never explained. It is the single least intuitive link in the dhātu chain.
- No study has tested whether people classified as medo-sāra differ in any measurable lipid or body-composition variable from those who are not.
How to cite this entry
Age Ayurveda Nighantu, medo-dhātu
, https://nighantu.ageayurveda.com/lexicon/meda-dhatu/, CC BY 4.0.
The whole lexicon is downloadable from the index.
Machine-readable source: Markdown.
Data exported 2026-10-08.
Educational reference only. A term entry explains what a word means and how it has been translated. Nothing here is advice, and nothing here describes how any condition should be treated.