Tongkat Ali for sports performance and enhanced testosterone

Tongkat Ali for Sports

Tongkat Ali (Eurycoma longifolia) is the KING OF ALL HERBS for sports performance, bodybuilders and athletes. Why? Because it is the only herb that fulfills all the necessary criteria for enhancing testosterone naturally while being completely safe, producing no dependency or withdrawal.

How does it achieve this? Firstly, Tongkat Ali does not contain any testosterone! It works by promoting the testes to increase their production of testosterone via triggering hormonal signals from the hypothalamus and pituitary glands which enhances testosterone production by the Leydig cells and frees bound testosterone for use around the body, including into the muscles, which is the desired effect for all serious sports people.

This is where Tongkat Ali gets really interesting as normally when testosterone levels increase beyond a certain point a negative feedback will stop the production of any more testosterone and levels will drop. As we age testosterone is further inactivated by higher levels of circulating sex hormone binding globulin (SHBG) that binds and renders useless the active bioavailable testosterone required for anabolic use. Tongkat Ali works wonders for men because it slows the negative feedback loop allowing for a higher level of testosterone. But it does this by increasing testosterone to the upper level of what is physiologically normal for you. Therefore it is completely safe for athletes and will not cause them to fail a performance enhancing drug test. While also reducing the binding of testosterone to SHBG as well as slowing down the conversion (aromatization) of testosterone into estrogen. This allows for a higher useable testosterone level of someone 10 to 15 years younger. In addition, it has been shown that Tongkat Ali consumption leads to a reduction in cortisol, the stress hormone, that is implicated in weight gain, muscle loss and disruption in hormonal equilibrium. These effects are specific for athletes and are separate from the sexual and fertility enhancing effects of Tongkat Ali that are additional bonuses.

All these studies were performed by experts in Natural Product chemistry, Andrology and Urology from around the world and sponsored by the Malaysian Government in conjunction with International Universities, including the Massachusetts Institute of Technology (MIT). Ongoing R&D on Tongkat Ali is revealing many additional areas related to hormonal function, fertility and enhanced sports performance, in both men and women.

While synthetic testosterone and anabolic steroids may be “stacked” for faster results, these anabolic or performance related effects carry a heavy price in terms of side effects that can last a lifetime and in many cases can ruin a professional athletes sports career.  While the more common side effects of testicular shrinkage and “roid rage” are well known it is the lesser known chronic health effects such as liver disease, infertility, breast fat deposition, heart disease, psychosis and cancer that are affecting many young athletes that are participating in this risky gambling with their health.  We live in an age when everyone wants faster and faster results, yet this attitude towards abusing pharmaceutical drugs and synthetic chemicals is responsible for a multitude of physical and psychological problems.  When high quality Tongkat Ali extract is consumed at a therapeutic dose then results can normally be felt within 1 or 2 days, with increases in muscle and weight loss after only 2 weeks of continuous uninterrupted use. Our bodybuilding, sports and martial arts clients have been informing us for years that the first thing they notice is a greater exercise intensity and focus and the incredible muscular “pump” they get. This is followed by a thermogenic high for at least 24 hours post workout. Sleeping is improved and they report waking up with more energy. It’s the older athletes who notice the fastest results and they find they can at last get the results that they used to only get when they were younger, in the form of muscle gains and greater muscle firmness, weight loss (especially stubborn tummy fat) and greater confidence and libido.

Tongkat Ali is recommended for enhanced sports performance and anyone involved in weight lifting, bodybuilding, athletics, cycling, martial arts and all those desiring to maximize their usable testosterone levels within the normal upper range as we age. Tongkat Ali contains no testosterone but it promotes an increase testosterone production only within the upper physiological range for you (or more accurately, the younger you). Even after you stop taking Tongkat Ali, the level of testosterone remains at a higher rate for some time.

Since 1995 we have focused on developing professional Tongkat Ali products for the global natural health market. In this time we have succeeded in getting this previously unknown Malaysian herb taken seriously, not just as an effective libido / aphrodisiac herb, but also as a natural androgenic hormonal support for men involved in sports such as; weight lifting, bodybuilding, martial arts and all those desiring to maximize their usable testosterone levels within the normal upper range as we age.

Tongkat Ali is 100% natural and has been used by numerous athletes without fear of failing any drug tests. More importantly, as the herb contains no testosterone but is only converted by your body into its own testosterone, it does not effect in any way your natural production and even after you stop the levels remain at a higher rate for some time. Also, Tongkat Ali reduces sex hormone binding globulin and estrogenic compounds that reduce the amount of available testosterone which is especially important as we age.

SAFE AND EFFECTIVE: Most importantly, Tongkat Ali has been shown to have a very high safety in numerous international toxicology studies. The latest, performed in Taiwan studied the acute 13-Week Subchronic toxicity and genotoxicity of the powdered Root of Tongkat Ali and found it to be very safe at acceptable therapeutically effective dosages.

 Scientific Research on Tongkat Ali has revealed:

  • Tongkat Ali produces an elevated testosterone level
  • Tongkat Ali increases sperm quality and quantity
  • Tongkat Ali increases male fertility
  • Tongkat Ali elevates the percentage in sperm motility rate
  • Tongkat Ali is a natural energizer
  • Tongkat Ali safely & meaningfully boosts androgen levels
  • Tongkat Ali improves strength during exercise and has an anabolic effect on muscle growth
  • Tongkat Ali decreases sex hormone binding globulin (SHBG) allowing for higher available testosterone
  • Tongkat Ali reduces the conversion of testosterone into estrogen (aromatization)
  • Tongkat Ali improves sexual dysfunction in men without side effects
  • Tongkat Ali increases cellular energy production through glycolysis and oxidative phosphorylation
  • When used in conjunction with an exercise /  weight training regime, Tongkat Ali accelerates:
    Increased fat free mass
    Decreased % fat
    Increased arm circumference
    Increased muscle strength

Clinical Studies on Tongkat Ali for Sports Performance: While there are published studies confirming the testosterone-enhancing effects of Tongkat Ali, only several studies have focused specifically on the ergogenic (performance enhancing) effects, including the one’s below:


S. Hamzah, A. Yusof.

Department of Exercise Physiology, Sports Centre, University of Malaya, 50603 Kuala Lumpur, Malaysia. Published in the British Journal of Sports Medicine

Eurycoma longifolia Jack (ELJ), which contains quassinoids such as eurycomalacton, eurycomanon, and eurycomanol, has been reported to have aphrodisiac properties and to increase testosterone levels in men. Previous studies have established that the testosterone supplementation increases fat free mass, muscle strength, and muscle mass, which are important for physical function and athletic performance. Thus, the objective of this study was to investigate the effect of the increase in testosterone levels, obtained by administration of ELJ, on body composition and muscle strength and size in man. Fourteen healthy men performed an intense strength training programme with initial load of 60% RM (2 sets of 10 repetitions with 1 minute rest between, for 10 stations) on alternate days for five weeks. Simultaneously, seven men were randomly selected to consume 100 mg/day ELJ water soluble extract, and seven men received placebo. The intensity of the exercise was increased by 10% RM/week. Body composition, arm circumference, one repetition maximum (1 RM), and surface electromyography (sEMG) activity were measured and recorded one day before and after the five weeks of supplementation and intervention. The lean body mass of the treatment group showed a significant increment, from 52.26 (7.18) kg to 54.39 (7.43) kg (p = 0.012), but no significant changes in fat free mass were observed in the placebo group. Percentage body fat was significantly decreased in the treatment and placebo group, from 31.30 (5.48)% to 28.44 (6.43)% (p = 0.01) and from 22.83 (2.43)% to 21.33 (2.35)% (p = 0.001) respectively. The 1RM test showed a significant increase from 73.71 (16.63) to 78.71 (17.0) kg (p = 0.006) in the treatment group and from 77.29 (8.9) to 79.43 (8.8) kg (p = 0.011) in the placebo group. The increase in strength in the treatment group was larger than in the placebo group (6.78% and 2.77% respectively). The mean frequency of sEMG on the biceps in the treatment and placebo groups decreased significantly, from 121.77 (40.0) to 90.47 (64.6) μV (p = 0.012) and from 127.95 (30.9) to 98.8 (50.1) μV (p = 0.036) respectively. The treatment produced 2.92% greater reduction in electrical activity of the muscle measured at the end of the experiment compared with placebo. The mean arm circumference of the treatment group increased significantly by 1.8 cm after the supplementation, from 30.87 (1.88) to 32.67 (1.96) cm (p = 0.011), but there was no significant increase in the placebo group. The results suggest that water soluble extract of Eurycoma longifolia Jack increased fat free mass, reduced body fat, and increased muscle strength and size, and thus may have an ergogenic effect. Further investigations are warranted.


Talbott S, Talbott J, Negrete J, Jones M, Nichols M, and Roza J.

Eurycoma longifolia, commonly known as “Tongkat Ali” or “Longjack,” is often touted as a testosterone “booster” and marketed to athletes as a training aid and performance enhancer. Rodent studies have shown oral delivery of Eurycoma extract to improve sexual performance and increase serum testosterone levels. Open-label human trials have suggested that Eurycoma extract may help prevent age-associated androgen deficiency, improve sexual function, and increase psychological parameters such as mood, energy, and sense of well-being.
The purpose of this study was to determine the effects of Eurycoma longifolia on testosterone and cortisol levels during intense endurance exercise.
We used a water-soluble extract of Eurycoma longifolia (E) standardized to 22% eurypeptides and 40% glycosaponins. Male subjects (N=30) were recruited from a 24-hour mountain biking event and asked to provide a saliva sample before and after each lap for measurement of cortisol and testosterone by enzyme immunoassay (Salimetrics, State College, PA). Subjects completed 4 laps (14.91 miles/lap) and provided 8 saliva samples over a 24h period. Subjects consumed 100mg of E (N = 15) or a look-alike placebo (P, N = 15) approximately 30 minutes prior to endurance exercise.
Cortisol levels were 32.3% lower in E compared to P (0.552+0.665 versus 0.816+0.775 ug/dL, P < 0.05). Testosterone levels were 16.4% higher in E compared to P (86.72+40.90 versus 72.47+33.77 pg/mL, P < 0.05).
These results suggest that Eurycoma longifolia extract may help to maintain normal levels of cortisol (low) and testosterone (high) and thus promote an overall “anabolic” hormonal state (versus a “catabolic” state characterized by elevated cortisol and suppressed testosterone) during intense endurance exercise.

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