Tongkat Ali on Men’s Fertility: Sperm Count, Motility & Morphology

More than 140 million couples in the world today are experiencing infertility. Ongoing research studies on Tongkat Ali (Eurycoma Longifolia) are showing promising results and the positive effects on men’s fertility have attracted young male adults in recent years. 

In this article, we shall investigate the facts and effects of Tongkat Ali on spermatogenesis, sperm quality and overall men’s fertility. This helps you to decide whether you should take Tongkat Ali if you have a low sperm count, or issues with infertility.


Tongkat Ali supplementation has pharmacological effects on men’s fertility which improves overall sperm quality. 

Tongkat Ali’s effect on overall sperm quality indicators includes higher sperm count (i.e sperm concentration), higher sperm motility and sperm morphology.

Having a healthy sperm quality is one of the key factors contributing to higher chance of pregnancy and a healthy sex life.

According to clinical andrologist Dr. Ismail Tambi, Tongkat Ali has a profound impact on men’s fertility. His extensive research on Tongkat Ali has helped more than 40,000 men to improve sperm quality and overall fertility.

In Europe, award-winning Italian andrologist Dr. Andrea Militello commented on the positive impact of Tongkat Ali on men’s fertility in his TikTok video.

Tongkat Ali’s Effects on Men’s Fertility

Several human studies on Tongkat Ali showed promising results that support overall men’s fertility with notable improvements in sperm quality; indicated by higher sperm count by 65% (i.e concentration), sperm motility by 11% and sperm morphology by 94%.

Results on Men’s Fertility After Tongkat Ali’s supplementation

Sperm Quality IndicatorResult with 300 mg daily dosage
(n=109 men)
Result with 200 mg daily dosage
(n=350 men)
Sperm Count (Concentration)

18.2% increase

65.5% increase

Sperm Motility

44% increase

11% increase

Sperm Morphology


94.9% increase

Our analysis:

On going research studies on Tongkat Ali (Eurycoma Longifolia) showed significant effect on spermatogenic activities, with significant increase in sperm count in oligospermic males (i.e males with low sperm count) and males diagnosed with hypogonadism (i.e patients with low sex hormones). This suggests potential use of Tongkat Ali as a natural supplement to manage symptoms related to men’s infertility.

Does Tongkat Ali improve sperm count?

Tongkat Ali animal studies and human clinical trials showed evidence of sperm count improvements between 99% to 256% depending on dosage and formulation.

An animal study on sperm quality conducted in 2009 showed that 200 mg of Tongkat Ali showed the highest sperm count increase of 99.2%.


Effects on Sperm Count

Sperm Count Increase

50 mg



100 mg



200 mg



We found the addition of Tongkat Ali as one of the key bioactive ingredients in a polyherbal formulation (PHF) resulted in the highest increase of sperm count, as showed in the randomized human clinical trial study conducted by a group of scientists from the University of Queensland Australia, Kansas State University USA, Deakin University Australia and Shandong University of Technology China in 2018.

The randomized clinical trial on 36 male patients showed that mixing Tongkat Ali root with Acacia and Mucuna seeds resulted in an increase of 256% in sperm concentration, 215% increase in sperm motility and  154% increase in semen volume.

Parameters Before After Change (%)
Sperm Concentration

9.59 ± 4.37 × 106/mL

25.61 ± 8.6 × 106/mL


Semen Volume

1.7 ± 0.14 mL

4.32 ± 0.38 mL


Sperm Motility

15.43 ± 2.40%

48.65 ± 5.10%


Our Analysis

Tongkat Ali studies on animals and humans suggest statistically significant increase of sperm count between 100% to 256% based on daily dosage between 50 – 200 mg daily for a duration of approximately 4 weeks.

However, the percentage improvement on sperm count and sperm quality varies greatly depending on the medical conditions, age and dosage. Despite promising results, more studies required to establish a robust performance evaluation on the effectiveness of Tongkat Ali in boosting overall sperm quality.

FAQ: User Guide

Get the right answers to questions on Tongkat Ali usage and effects on men’s fertility.

How effective is Tongkat Ali in improving men's fertility?

Several animal and human clinical trials suggest that Tongkat Ali is a proven supplement to support men’s fertility by managing symptoms such as increasing sperm count, motility or semen volume.

Whilst results on sperm count may vary from modest to substantial increases (of more than 200%), more clinical studies are required to establish results for a wider range of users and medical conditions.

Which Tongkat Ali brand is best for men's fertility?

AKARALI Physta Tongkat Ali is regarded as one the best Tongkat Ali supplements that work to increase sperm count, sperm quality and motility as it is clinically tested on aging adults with fertility issues due to low testosterone levels.

Which type of Tongkat Ali is the most effective to increase sperm count?

Standardized Tongkat Ali hot water extract is reported the most effective (potent) as it is clinically tested on humans. Using clinically tested Tongkat Ali supplements may result in higher sperm count, sperm motility and sperm morphology whilst ensuring your hormones are kept at optimal levels.

Which ingredients in Tongkat Ali cause increase of sperm count?

Tongkat Ali contains eurypeptides (i.e a chain of amino acids protein, or known polypeptides) that are responsible to ensure your sex hormones (including testosterone) to work optimally. Higher level of eurypeptides of more than 20% provide sufficient absorption in your blood to induce positive pharmacological effects on sperm count and other sperm quality indicators.

Should I take Tongkat Ali if I have a low sperm count?

Tongkat Ali can be taken as a natural supplement together with your daily diet to boost your sperm count or if you are diagnosed with oligospermia due to hypogonadism (a condition where your sex glands are not producing sufficient sex hormones, or low testosterone levels).

How much Tongkat Ali should I take to improve my sperm count or overall men’s fertility?

If you are taking Tongkat Ali with the objective to improve sperm count, an optimized dosage will range between 200 mg to 400 mg daily for a duration of 4 to 12 weeks. Aging adults with hypogonadism may take 400 mg daily for a minimum of six weeks.

How can I boost my sperm quality when taking Tongkat Ali?

Some of the effective ways to boost sperm quality or to achieve higher sperm count is by reducing or stopping your alcohol intake, stop smoking and change to protein-based diet. It is highly advisable to reduce processed food as well.

Does Tongkat Ali helps oligospermia?

Tongkat Ali (Eurycoma Longifolia) may help oligospermic males optimize sperm production by restoring sex hormones in the body. Oligospermia is a medical condition when you have a low sperm count, i.e fewer than 15 million sperm in 1 milliliter of semen. A healthy adult sperm count averages more than 15 million sperm per 1 milliliter of semen.

Does Tongkat Ali and Ashwagandha improve sperm count?

Tongkat Ali and Ashwagandha combo may improve sperm count as both contain a family of alkaloids, peptides and protein. However, there are no studies to investigate the compounded effects on sperm count by combining both Tongkat Ali and Ashwagandha. Taking Tongkat Ali and Ashwagandha together may not yield to higher sperm count, or better sperm quality.

Does Tongkat Ali and Fadogia Agrestis improve sperm count?

Tongkat Ali may improve sperm count, however Fadogia has no effects on sperm motility or sperm count. Using Fadogia-Tongkat Ali supplements may not have any significant improvement compared to taking Tongkat Ali as a single ingredient supplement.

Parting Thoughts

The aid of natural supplementation apart from changes in lifestyle and diet may improve men’s fertility substantially.

Taking Tongkat Ali supplementation as part of your daily dietary supplement may improve your sperm quality by restoring your sex hormones to ensure that your sex glands are working optimally as you age.

Tongkat Ali works well to improve men’s fertility if you are diagnosed with low testosterone or if you have hypogonadism.

Combining Tongkat Ali with other herbal supplements may increase sperm count, motility, and sperm concentration substantially but do exercise caution for any severe side effects.

We always recommend you to consult your nearest healthcare professional before consuming Tongkat Ali and please observe the right dosage if you are taking one.


Naressa Khan contributes regularly on AKARALI. As a researcher and investigative journalist, Naressa is all about creating, deconstructing, and reassembling meaningful content through words and facts. With this approach always in mind, she eagerly explores the nuances in life via the aspects of lifestyle, culture, travel, health, and wellness in Malaysia .

Our articles are third party reviewed by our panel of experts and medical advisors to ensure the facts are accurate and credible. These are validated against multiple source references which include but not limited to research studies, peer-reviewed journals, pre-clinical studies, clinical tests and other credible publications.

Our panel of medical advisors and experts are highly experienced in their individual fields. However, they do not provide any medical advice or recommendations arising from content published in this article.


The content published on this website is for educational purposes and should not be viewed, read, or seen as a prescription or constitute any form of medical advice. We recommend you consult your nearest GP or doctors before consuming Tongkat Ali or any products which contain Tongkat Ali. For further information, kindly refer to our Frequently Asked Questions (FAQ) for more information.

Share this post

Related Posts

Leave a Reply

Your email address will not be published. Required fields are marked *