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Eucommia ulmoides

Eucommia ulmoides is a traditional chinese medicine of which the bark is used for medicinal purposes. Although most evidence is preliminary, it has minor antiinflammatory properties may augment steroid signalling.

Our evidence-based analysis on eucommia ulmoides features 51 unique references to scientific papers.

Research analysis led by and reviewed by the Examine team.
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Summary of Eucommia ulmoides

Primary information, health benefits, side effects, usage, and other important details

Eucommia ulmoides is a Traditional Chinese Medicine that has been recommended for vitality enhancement and longevity. It is a collection of flavonoids (ones that are fairly common in the plant world) as well as both lignans and irioid compounds (both of which are not unique to this plant, but tend to be less common).

There is not a lot of human evidence on this plant at this moment in time except for one study noting reductions in blood pressure, but currently the animal evidence and mechanisms suggest that eucommia ulmoides could have a role in preventing bone loss, inducing fat loss, and reducing elevated blood pressure and triglycerides. At least one study suggests that the plant can augment steroid signalling without inherently being a strong agonist (applies to both androgens and estrogens), but this may apply to caprylic acid in general (which would then suggest that coconut oil is better at this role, due to providing much more caprylic acid).

It is not clear exactly how this plant burns fat or the molecules that mediate this effect, but currently the PPAR system is implicated and acute doses of the supplement have been confirmed to increase heat production in rats. The fat loss (or more acurately, anti-obese) effects of the plant in animal models is surprisingly potent among nutritional supplements.

This plant does have potential as a nutritional supplement as, unlike many other plants, it is active at relatively low oral dosages of 3,000mg or less (plant dry weight).

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How to Take

Recommended dosage, active amounts, other details

There is insufficient evidence to suggest an optimal dosage, but the limited human evidence and the animal evidence suggest a daily dose of around 3g of the leaf extract is effective for blood pressure and fat mass reduction. It may be prudent to use this in three daily doses of 1g, as the lone human study used thrice daily dosing.

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Human Effect Matrix

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The Human Effect Matrix summarizes human studies to tell you what effects Eucommia ulmoides has on your body, how much evidence there is, and how strong these effects are.

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Grade Level of Evidence
Robust research conducted with repeated double-blind clinical trials
Multiple studies where at least two are double-blind and placebo controlled
Single double-blind study or multiple cohort studies
Uncontrolled or observational studies only
Level of Evidence
? The amount of high quality evidence. The more evidence, the more we can trust the results.
Outcome Magnitude of effect
? The direction and size of the supplement's impact on each outcome. Some supplements can have an increasing effect, others have a decreasing effect, and others have no effect.
Consistency of research results
? Scientific research does not always agree. HIGH or VERY HIGH means that most of the scientific research agrees.
Notes
grade-c - - See study
grade-c - - See study
grade-c - - See study
grade-c - - See study

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Things to Note

Also Known As

Du Zhong, Gutta-Percha, Rubber Bark tree, Tochu

Do Not Confuse With

Euonymus alatus or Eurycoma Longifolia Jack (sound similar)

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Click here to see all 51 references.