Tongkat Ali Increases Testosterone in Older Folks

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    Tongkat Ali Increases Testosterone in Older Folks




    "Supplementation consisted of 400mg of a patented (US Patent: 7,132,117) standardized water- soluble extract of TA (PhystaTM; Biotropics Malaysia Berhad, Kuala Lumpur, Malaysia) (200 mg taken twice a day), for 5 consecutive weeks. A resting, fasting blood sample was drawn in the morning before the treatment began (baseline) and after 3 and 5 weeks, respectively."

    Phytother Res, 2014 vol. 28(4) pp. 544-50
    Tongkat Ali as a potential herbal supplement for physically active male and female seniors--a pilot study
    Henkel, RR; Wang, R; Bassett, SH; Chen, T; Liu, N; Zhu, Y; Tambi, MI
    Tongkat Ali (Eurycoma longifolia; TA) is known to increase testosterone levels and alleviate aging males' symptoms. This study aimed at investigating TA as an ergogenic supplement for elderly people. Thirteen physically active male and 12 physically active female seniors (57-72 years) were supplemented with 400-mg TA extract daily for 5 weeks. Standard hematological parameters were taken. In addition, the concentrations of total and free testosterone, dihydroepiandrosterone, cortisol, insulin-like growth factor-1, and sex hormone-binding globulin were analyzed. As additional biochemical parameters, blood urea nitrogen and creatine kinase as parameters of kidney function and muscle damage, respectively, as well as the muscle strength by a simple handgrip test were determined. After treatment, hemoglobin, testosterone, and dihydroepiandrosterone concentrations, and the ratio of total testosterone/cortisol and muscle force remained significantly lower in female seniors than in male seniors. Hematocrit and erythrocyte count in male seniors increased slightly but were significantly higher than in female seniors. Treatment resulted in significant increases in total and free testosterone concentrations and muscular force in men and women. The increase in free testosterone in women is thought to be due to the significant decline in sex hormone-binding globulin concentrations. The study affirms the ergogenic benefit of TA through enhanced muscle strength.
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    Well this pretty much confirms tongkat works through lowering shbg. No other way to explain the results in post menopausal ​women
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    Good find man!
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    Interesting study.

    After 5 weeks SHBG start rising compared to after 3 weeks so could this mean negative loophole started to kick in and body start making more SHBG so that after you'd stop taking tongkat that you'd have more SHBG which would cause your total and free testosterone to go below your baseline?

    Just trying to figure out how many weeks should you take tongkat that wouldn't mess with your baseline too much after stop taking it.
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    Quote Originally Posted by ahh123 View Post
    Interesting study.

    After 5 weeks SHBG start rising compared to after 3 weeks so could this mean negative loophole started to kick in and body start making more SHBG so that after you'd stop taking tongkat that you'd have more SHBG which would cause your total and free testosterone to go below your baseline?

    Just trying to figure out how many weeks should you take tongkat that wouldn't mess with your baseline too much after stop taking it.
    That chart includes both men and women.
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    Most people find that cycling TA during the week seems to provide a better "feel". I assume this study was done on a consistent basis without any cycle?
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    Quote Originally Posted by kisaj View Post
    Most people find that cycling TA during the week seems to provide a better "feel". I assume this study was done on a consistent basis without any cycle?
    Just read the first post. 400mg daily for 5 weeks.That chart makes me wonder if the whole "tongkat raises BP" thing may be due to prolonged use and its effect on erythropoiesis?
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