How Tongkat Ali boosts testosterone levels

Definition: "An ergogenic aid is any substance or phenomenon that enhances performance "

29.07.2013

Researchers at the Universiti Sains Malaysia have worked out how extracts of Eurycoma longifolia - a plant you probably know by the name Tongkat Ali - boost testosterone levels. Tongkat Ali extracts contain the compounds eurycomanone and 13-alpha-(21)-epoxy-eurycomanone, and these boost the production of the hormones LH and FSH.

How Tongkat Ali boosts testosterone levels

Study
The researchers used methanol to make an extract of Tongkat Ali and further purified it, separating it into to four fractions.

The researchers discovered that one of the fractions increased the weight of the testes of the lab animals more than the others. This was the extract that consisted of 32 percent quassinoids. The two most important of these were eurycomanone and 13-alpha-(21)-epoxy-eurycomanone.

How Tongkat Ali boosts testosterone levels

Results

A dose of 25 mg per kg bodyweight of the active Tongkat Ali extract caused a considerable rise in rats' testosterone levels over a period of 52 days. This increase was accompanied by a rise in LH and FSH levels, and a decrease in the amount of estradiol in the rats' blood.

They've done it. Researchers at the Universiti Sains Malaysia have worked out how extracts of Eurycoma longifolia – a plant you probably know by the name Tongkat Ali – boost testosterone levels. The extracts contain the compounds eurycomanone and 13-alpha (21) epoxy-eurycomanone, and these boost the production of the hormones LH and FSH.

They've done it. Researchers at the Universiti Sains Malaysia have worked out how extracts of Eurycoma longifolia – a plant you probably know by the name Tongkat Ali – boost testosterone levels. The extracts contain the compounds eurycomanone and 13-alpha (21) epoxy-eurycomanone, and these boost the production of the hormones LH and FSH.

They've done it. Researchers at the Universiti Sains Malaysia have worked out how extracts of Eurycoma longifolia – a plant you probably know by the name Tongkat Ali – boost testosterone levels. The extracts contain the compounds eurycomanone and 13-alpha (21) epoxy-eurycomanone, and these boost the production of the hormones LH and FSH.

When the researchers gave their lab rats the Eurycoma longifolia quassinoids separately, both eurycomanone and 13-alpha-(21)-epoxy-eurycomanone boosted the rats' testosterone levels.

How Tongkat Ali boosts testosterone levels

Other study
The results of this study are not completely unexpected. In 2011 researchers from the same university published the results of a study in which they showed that eurycomanone had an anti-oestrogen effect comparable to that of tamoxifen, the active ingredient in Nolvadex. [Planta Med. 2011 Jan;77(2):128-32.]

Sponsored?
The researchers were funded by the Malaysian Ministry of Science, Technology and Innovation and their university, and not by the supplements industry.

Source:
J Ethnopharmacol. 2013 Feb 13;145(3):706-14.

More:
Less cortisol and more testosterone with a daily 200 mg Tongkat Ali 17.07.2013
Tongkat Ali has no effect on prostate 12.07.2013
The effect of Tongkat Ali on healthy men 10.07.2013

Archives:
Testosterone Boosters
Tongkat Ali



Men in their twenties produce more testosterone with 600 milligrams of Tongkat Ali per day 400 milligrams is not enough...	Two capsules of D-chiro-inositol per day: more testosterone, less estradiol, less body fat and greater insulin sensitivity If older men with a low testosterone level take 1200 milligrams of D-chiro-inositol daily, their testosterone level rises, their fat mass decreases, their estradiol level drops and their muscle strength and insulin sensitivity increase.	Date seed \| A testosterone booster that makes you healthier Date seeds increase testosterone levels, according to animal studies we recently wrote about.