Educational information, not medical advice — ask your doctor or midwife.
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What is Bear's Foot? It is the root of a tall North American daisy plant, Polymnia uvedalia. You may also see it called Leaf Cup, Yellow Leafcup, or by its newer botanical name, Smallanthus uvedalia.
Old American folk healers and Eclectic doctors used the root in two ways. They rubbed it on the skin as an ointment. They also took it by mouth as a bitter root tea or tincture.
Here is the honest verdict. No human trials have tested Bear's Foot for any health problem. A long record of use is not proof that a remedy works, and it is not proof that it is safe.
Today the root is uncommon. It turns up as dried root, a tincture, or a salve, and sometimes in "lymph" blends. It is sold as a supplement, not as an approved medicine.
Does anyone know how Bear's Foot works? No. There is no tested mechanism for this plant in people.
The root does hold sesquiterpene lactones (bitter plant compounds). In test-tube work, compounds of this family can irritate cells, kill some cells, and damp down inflammation signals. Whether any of that happens in a human body is unknown.
The old Eclectic idea was different. Those doctors believed the root "stimulated the glands" and helped drain a swollen spleen or swollen lymph nodes. That idea came from bedside impressions, not from measurement, and it has never been tested.
Some lab work exists on related Smallanthus plants, mostly the food crop yacon. Those findings belong to a different plant part and a different species. They do not tell you what Bear's Foot root does in you.
How is it sold? Mostly in simple, old-style herbal forms.
- Dried cut root, for making a tea or decoction. - Alcohol tincture, usually in drop form. - Ointment, salve or liniment made from the fresh or dried root.
Two other forms show up less often.
- Capsules of powdered root. - A minor part of "lymphatic" or "glandular" herb blends.
The leaf is rarely used. Quality control is weak across all these forms.
Products are often mislabelled with the older name Polymnia. Check the full botanical name, Smallanthus uvedalia.
Where does its reputation come from? Mainly American Eclectic medicine in the 1800s and early 1900s.
Eclectic texts, including King's American Dispensatory, listed "bearsfoot ointment" for an enlarged spleen. Doctors of that era rubbed it over the ribs and belly. They also applied it to swollen glands and to sore, inflamed breasts during nursing.
Appalachian folk use ran along the same lines. Some people rubbed the root oil on the scalp as a hair tonic. The bitter root was also taken in small amounts to move a sluggish gut.
The plant faded from use when Eclectic practice closed down in the 1930s. It was never picked up by modern research.
Stop using it and get help if you react.
Call emergency services if you get swelling of the lips, face or throat, hives spreading over your body, or trouble breathing. These are signs of a severe allergic reaction.
See a doctor soon if you get a spreading skin rash, vomiting, diarrhoea that lasts more than a day, yellow skin or eyes, or dark urine.
Also book an appointment if the problem you were treating gets worse. A gland that keeps growing, a fever, night sweats, or weight loss you did not plan all need proper testing.
In the United States, Bear's Foot may be sold as a dietary supplement, with no approved medical use. In the UK, EU, Canada and Australia it is not an authorised medicine and is rarely stocked.
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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