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Butea superba

Butea Superba (Red Kwao Krua) is a herb from Thai medicine sometimes thought to be the male equivalent of Pueraria Mirifica, a phytoestrogen known as White Kwao Krua; evidence for Butea Superba for these claims is lacking.

Our evidence-based analysis on butea superba features 21 unique references to scientific papers.

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Summary of Butea superba

Primary Information, Benefits, Effects, and Important Facts

Butea Superba is a tuber vegetable that looks visibly similar to Pueraria Mirifica yet appears to be opposite in effect. This tuber has traditionally been used for the enhancement of male vitality and as an aphrodisiac in Thailand, and appears to be a source of androgenic compounds.

When studies investigated the androgenic effects, there appears to be the classical signs of direct androgenic activation (particularly, an increase in liver enzymes in some studies and growth of male sex organs; a decrease in testosterone levels in serum has been noted possibly due to negative feedback) but unlike its sister herb (Pueraria Mirifica) the bioactives mediating these androgenic effects are not currently known nor are their potencies relative to testosterone known.

Low doses of Butea Superba appear to be safe for human consumption, based on limited evidence, although higher doses have been connected to mutagenicity in mice (300-1000mg/kg, a human equivalent of 48mg/kg or above) and as such are not advisable.

Both studies on Butea Superba and its erectogenic effects appear to have their flaws, so although this herb could potentially be an erectogenic aid it is currently not proven to do so.

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How to Take

Medical Disclaimer

Recommended dosage, active amounts, other details

There is not enough information to recommend supplementation of butea superba, but it appears to be traditionally used in the range of 100-250mg. The exact bioactives that underlie its effects are not known

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Human Effect Matrix

The Human Effect Matrix looks at human studies (it excludes animal and in vitro studies) to tell you what effects butea superba has on your body, and how strong these effects are.
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 - Very High See 2 studies
Currently assumed to be ineffective for erections or erectile dysfunction due to the poor quality of the evidence in existence.

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Things to Note

Other Functions:

Primary Function:

Also Known As

Red Kwao Krua

Do Not Confuse With

White Kwao Krua (Pueraria Mirifica), Butea monosperma

  • Possibly Androgenic, and thus would carry many similar risks as higher testosterone levels

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Click here to see all 21 references.