Educational information, not medical advice — ask your doctor or midwife.
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Hwangki is the dried root of Astragalus membranaceus. In Korean medicine it is a tonic herb, taken to build strength and support the body's defences. It is used most often as a soup, broth or tea herb.
People take it for tiredness, frequent colds, poor appetite and slow recovery after illness. In Korea it is a common ingredient in chicken soup such as samgyetang.
The human trial evidence is thin and mostly of low quality. Its standing rests on long traditional use, and traditional use is not proof of effect.
How Hwangki acts in the body is not well mapped. Most of what we know comes from lab and animal work.
In cell and animal studies, root extracts appear to change the activity of immune cells. Some lab work shows effects on signals linked to swelling.
In animals, extracts may lower blood sugar and may protect kidney tissue. Whether any of this happens in people at normal doses is not established.
You will most often meet Hwangki as dried root slices. These are simmered in soups, broths and teas.
It also comes as a powder, a capsule and a liquid extract. Some extracts are standardised, meaning they are set to a fixed amount of astragaloside IV.
Strength varies a lot between products. Check the label for the plant name, the part used and the dose per serving.
Hwangki is the Korean name for the root of Astragalus membranaceus. It is a staple of Korean herbal practice and of Chinese medicine, where it is called huang qi.
Written use in East Asian texts goes back around two thousand years. In Korea it is a kitchen herb as well as a clinic herb.
It is classed as a qi tonic, meaning a herb used to restore strength after illness.
Get emergency help if your lips, face or throat swell, or if you struggle to breathe. Stop the herb and call your doctor if you get a rash, easy bruising, unusual bleeding, or dizziness. See your doctor if your blood sugar keeps dropping, or if the tiredness you are treating gets worse or lasts more than a few weeks. If you have kidney disease or cancer, speak to your specialist before you start.
Evidence grades and traditional-use labels are explained in our methodology. Nothing here is medical advice.
What it is typically used for, usual dose, cautions, and the study behind it where real trial data exists.
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