Food as medicine
药食同源
药食同源 — food and medicine of shared origin — is the Chinese position that a long list of ordinary kitchen items sit in both the grocery and the herbal shop. China’s health authority publishes that list, and every one of these fourteen entries is on it. Nothing here is a herb we would ever send you. It is dinner, described precisely.
The idea
Western shopping keeps food and medicine in separate buildings, and the wall between them is so old that it is hard to see as a choice. Chinese thinking never built it. The same ginger goes into the fish and into the pot; the same dried tangerine peel seasons the rice and sits in a drawer in the shop down the road. What changes is the amount, the reason and who decided — not the substance.
The oldest statement of it is in the Huangdi Neijing, compiled around 200 BCE in two parts of eighty-one chapters each. Its twenty-second chapter sets out an order of eating that puts grain first and everything else in support of it, and every later Chinese writer on food quotes it.
The five grains for nourishment, the five fruits for assistance, the five domestic animals for benefit, the five vegetables for filling out.
Eight and a half centuries later Sun Simiao, who lived through the early Tang and wrote the Beiji Qianjin Yaofang in 652 CE, gave the idea its most-quoted line. He put a chapter on food ahead of the formulas and told the physician reading him to work out the source of the trouble and settle it with food first, reaching for anything stronger only when food had not answered.
A physician should first find where the trouble comes from and settle it with food. Only where food has not answered does he go further.
The list is not a matter of tradition alone; it is administrative, and it is published. China’s health authority maintains a catalogue of substances that are both food and medicine — the 2002 catalogue carried eighty-seven items, and in November 2023 the National Health Commission and the market regulator added nine more, among them reishi and astragalus. That catalogue is the outer boundary of this silo. If a thing is not on it, it does not appear on this site, which is why you will not find a single formula-only herb anywhere in these fourteen pages.
How to read a monograph
Every entry in a Chinese materia medica since the Tang carries the same three facts, and once you can read them you can read any entry in any herbal, including the fourteen here. They are not chemistry and they do not pretend to be. They are a filing system built from what people reported after eating something, kept and argued over for two thousand years.
Nature, 四气 sì qì, is the direction a food moves you in: cold, cool, warm or hot, with neutral as the station in the middle where most everyday foods sit. It has nothing to do with the temperature of the bowl. A cucumber straight out of a hot pan is still cool; ginger in iced water is still warm.
Flavour, 五味 wǔ wèi, is a category of action rather than a taste note. Salty softens whether or not the thing tastes of salt, and that is the single most common misreading of this vocabulary in English. Two more flavours were added after the classical five: bland, which drains downward, and astringent, which binds.
Channel affinity, 归经 guī jīng, says which of the organ networks a food is held to reach. The networks are not the organs a surgeon removes: the Spleen of this tradition is a description of how a body handles food, assembled from bedside observation centuries before anyone had seen the organ it borrowed the name from. We use the vocabulary because it organises what people report, and we do not present it as physiology.
The shelf
Each page gives the botanical name and the part actually used, what the classical texts say and when they said it, one preparation you can make tonight with quantities for the hand and for the scale, two lists of the same size for who it suits and who it does not, and an honest note about medication.
Questions
Yao shi tong yuan means food and medicine share one origin. It is the Chinese position that there is no wall between the grocery and the herbal shop: a long list of ordinary items — ginger, dates, tangerine peel, barley-like grains — sit on both sides of it, and are eaten as food while being described in the same vocabulary a herbal uses.
No. Nothing on this site is for sale except a written reading. We do not ship, source, recommend a supplier for, or take a commission on a single item named on these pages. Everything here is bought in a grocery or a Chinese supermarket, by you, at grocery prices.
No, and the difference is the whole point of this silo. Herbal practice means a formula weighed out for one person by a licensed physician who can see them again next week. This is cooking. Everything on these pages is a food that China’s health authority also lists as a medicinal substance, used in the amounts a kitchen uses.
Every monograph carries two lists of the same size: who it tends to suit and who it tends not to. Read both before you buy anything. In this tradition there is no universally good food, only foods that fit a picture and foods that work against it — which is what a reading works out for one person in particular.
China’s health authority publishes a catalogue of substances that are both food and medicine. The 2002 catalogue carried eighty-seven items; in November 2023 the National Health Commission and the market regulator added nine more, including reishi and astragalus. If a thing is not on that catalogue, it does not appear on this site.
The reading
This silo describes foods. It cannot tell you which of them fits the way you sleep, eat and feel the cold, because it does not know. A reading can: thirty questions, one photograph of your tongue, and a document written in English by a physician licensed in China, sent within 48 hours.