post by Walter Ybarbo

Eurycoma Longifolia – Everything You Need To Know About Tongkat Ali

Eurycoma Longifolia – Everything You Need To Know About Tongkat Ali

Eurycoma longifolia, or as it is commonly called Tongkat Ali, is a type of herbal remedy that has been a part of traditional medicine from Southeast Asia for centuries.

It is often used to treat things like bacterial infections, fevers, and even erectile dysfunction.

Some studies have suggested that Tongkat Ali could relieve stress, improve body composition and boost male fertility. However, the research on this is limited.

Below is information about Eurycoma longifolia from its benefits, dosage, and possible side effects.

What is Eurycoma longifolia?

Tongkat Ali or Longjack is a type of herbal supplement that is found in the roots of the Eurycoma longifolia, a green shrub tree. It is a native plant in Southeast Asia.

It is normally used as a type of traditional medicine in Vietnam, Indonesia, Malaysia, along other Asian countries to treat things like erectile dysfunction, male infertility, fevers, infections, and malaria.

Tongkat Ali's health benefits most likely come from the different compounds that can be found in this plant. It specifically contains alkaloids, flavonoids, and other compounds that are antioxidants. An antioxidant is a compound that will fight the damage done to cells that are caused by molecules called free radicals. They may also benefit your body in other ways.

Tongkat Ali is usually consumed in pills containing herbal extracts or as part of herbal beverages.


Tongkat Ali is an herbal remedy that comes from the shrub ofEurycoma longifolia in Southeast Asia. There are many beneficial compounds found in it that can treat various diseases, including male infertility and infections.

Potential Benefits to Your Health

Many of the supposed health benefits of Eurycoma longifolia are not researched as much. Still,some studies have suggested that it can improve mood, increase muscle mass, and treat male fertility.

May Improve Male Fertility and Increase Testosterone Levels

The potential of Tongkat Ali to increase testosterone in men that have low levels is known and well documented.

Low testosterone or Low T can be caused by obstructive sleep apnea, chronic alcoholism, infection or injury of the testicles, medications, radiation treatment, chemotherapy, and aging.

When you do not have enough testosterone, then you could have erectile dysfunction, low libido, and for some, even infertility. Because the compounds found in Tongkat Alican boost testosterone levels, they can treat these issues.

A study was done in a single month on 76 older men who had low testosterone. After taking 200 milligrams of Tongkat Ali extract each day for a month, it showed a large increase in the testosterone levels to normal levels in 90% of the men in the study.

The studies were done on both humans and animals show that the Eurycoma longifolia extract improved erectile dysfunction by stimulating sexual arousal.

Lastly, it was shown to possibly improve the concentration and motility of sperm and boosting male fertility.

A study of 75 men of couples that struggled with infertility found that taking 200 milligrams of Tongkat Ali each day for three months showed improved motility and concentration of sperm. The treatment helped 14% of these couples to become pregnant.

Another example was a 12-week study done by 108 men between the ages of 30 and 55 who took 300 milligrams of Tongkat Ali each day, and it increased sperm motility and volume by 18% to 44%.

These studies show that Eurycoma longifolia can effectively treat low testosterone and infertility for some men, but there is a need for more extensive research.

May Improve Overall Body Composition

It is often said that Tongkat Ali can improve athletic performance and increase muscle mass.

This is because it contains peanutoids, including glucosinolates, eurycolactone, and eurycomanone, which can help your body use energy more efficiently, reduce fatigue, and improve endurance.

In other words, the supplement can act as a growth promoter, which is a substance that can enhance body functions and improve body composition.

A small study of 14 men that were going through strength training had shown that men who took 100 milligrams of Tongkat Ali extract each day had a greater increase in lean body mass than those who took a placebo.

They also lost more fat than participants in the placebo group.

A 5-week study of 25 active elderly people found that supplementing with 400 milligrams ofTongkat Ali extract per day can significantly increase muscle strength compared to placebo.

However, a small study of cyclists found that drinking beverages containing Tongkat Ali during exercise do not improve performance or strength than pure water.

These conflicting results indicate that Tongkat Ali may exhibit some artificial effects, depending on the dose and length of treatment, but more research is needed.


Studies have shown that Tongkat Ali may increase testosterone levels, help treat male infertility, relieve stress, and increase muscle mass. Nevertheless, more extensive research is still needed.

May Help To Relieve Stress

Tongkat Ali may reduce stress hormones in the body, reduce anxiety and improve mood.

A study in 1999 first determined the possible role of this therapy in the treatment of emotional problems and found that Tongkat Ali extract was equivalent to ordinary anti-anxiety drugs in reducing anxiety in mice.

Similar effects have been seen in humans, but research is limited.

A one-month study of 63-month moderately stressed adults found that supplementing with 200 mg of Tongkat Ali extract per day can increase the stress hormone cortisol levels in saliva compared with those who received a placebo Decrease by 16%.

Participants also reported that stress, anger, and tension were significantly reduced after persuading Tongkat Ali.

Although these results are encouraging, more research on the human body is still needed.

Dosage and Possible Side Effects of Eurycoma longifolia

Several studies on the use of Tongkat Ali in humans have not reported any side effects.

One study indicated that taking 300 mg of Tongkat Ali extract per day is as safe as taking a placebo.

Other studies have shown that up to 1.2 grams of Tongkat Ali extract per day are safe for adults, but it has not been used in research. Besides, there are no studies to examine its long-term use, so it is unclear whether the supplement is safe for a longer time.

A study in Malaysia examined the content of mercury within 100 Tongkat Ali supplements, and it showed that over 26% of these supplements the mercury content was above the recommended limit.

Excessive mercury intake can lead to mercury poisoning. Mercury poisoning will present itself with memory problems, mood changes, and issues with motor skills.

Also, the effect of Tongkat Ali on children or pregnant and lactating women has not been studied. Therefore, it is not yet clear whether this therapy is safe for these people.


For most healthy adults, a daily dose of 200-400 mg of Tongkat Ali seems to be safe. However, it is not known whether Tongkat Ali is safe for pregnant or breastfeeding women. Some supplements may also contain mercury.

Should You Start Taking Tongkat Ali?

Some studies have shown that Tongkat Ali can reduce anxiety and improve body composition, but research is limited.

It can also treat low testosterone levels, low libido, and male infertility.

Although doses of Tongkat Ali up to 400 mg per day seem to have no side effects, research is limited and available studies focus on short-term use.

It is not clear whether long-term supplementation is beneficial and safe.

If you are interested in taking Tongkat Ali, please consult your healthcare provider to ensure proper safety.

Also, keep in mind that some supplements may be contaminated with mercury. Not to mention that these supplements are not regulated and could have less or more Tongkat Ali than is shown on the label. Be sure to look for reputable brands that a third party has tested.

Finally, due to insufficient research in this area, pregnant women and breastfeeding women should not take Tongkat Ali. Besides, people who have a medical condition or are taking medication should consult their healthcare provider before taking Tongkat Ali.


Tongkat Ali may enhance low testosterone levels, fight anxiety and improve body composition, but research is limited. Please consult your healthcare provider before taking this supplement.

Bottom Line of Eurycoma Longifolia

Tongkat Ali or longjack is a herbal supplement recommended to improve anxiety, athletic performance, low testosterone, muscle mass, and male fertility.

Nevertheless, research is still limited.

If you are interested in trying Tongkat Ali, please contact your healthcare provider and look for reputable brands in stores or online.

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