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Tongkat Ali (Eurycoma longifolia) Side Effects

Tongkat Ali, also known as Eurycoma longifolia, is a herb native to Southeast Asia that is commonly used for its potential health benefits, including increased libido & improved athletic performance. While Tongkat Ali is generally considered safe, it is important to be aware of potential side effects. In this article, we will discuss some of the possible side effects of Tongkat Ali & provide some tips on how to use it safely.

We comment that side effects are uncommon from Tongkat Ali, yet they are possible, as they are with any type of dietary supplement. Below is a summary of the potential side effects of Tongkat Ali:

Gastrointestinal Issues from Tongkat Ali

A very small percentage of people may experience gastrointestinal issues such as nausea, vomiting & diarrhea when taking Tongkat Ali. These symptoms are generally mild and go away on their own after a few hours or days. To minimize the risk of gastrointestinal side effects, it is important to start with a low dose & gradually increase it over time.

Insomnia & Tongkat Ali Use

Tongkat Ali may cause insomnia in some people, especially if taken in the evening. This is because it can increase energy levels & make it harder to fall asleep. To minimize the risk of insomnia, it is recommended to take Tongkat Ali in the morning or early afternoon.

Agitation & Anxiety from Tongkat Ali

Tongkat Ali may cause agitation & anxiety in some people, especially at higher doses. This is because it can increase the production of adrenaline & other stress hormones. To minimize the risk of agitation & anxiety, it is important to start with a low dose whilst gradually increasing it over time.

Increased Heart Rate & Blood Pressure from Tongkat Ali

Tongkat Ali may increase heart rate & blood pressure in a small number of people, especially at higher doses. To minimize the risk of increased heart rate & blood pressure, it is important to start with a low dose and gradually increase it over time. We would recommend 50% of the recommended label instructions.

 

Hormonal Imbalances & Tongkat Ali

Tongkat Ali may cause hormonal imbalances in some people, especially if taken in large amounts over a long period of time. This is because it can increase the production of testosterone and other hormones. To minimize the risk of hormonal imbalances, it is important to take Tongkat Ali in moderation and under the guidance of a healthcare professional. Taking blood tests and monitoring your hormone levels, if this is a concern for you would be advisable.

Allergic Reactions to Tongkat Ali

Some people may be allergic to Tongkat Ali & experience allergic reactions such as a rash, itching or even difficulty breathing. If you experience any of these symptoms, stop taking Tongkat Ali & seek medical attention immediately.

Drug Interactions with Tongkat Ali

Tongkat Ali may interact with certain medications, including blood thinners, diabetes medications & antidepressants. If you are taking any medications, it is important to talk to your healthcare provider before taking Tongkat Ali.

Counterfeit Tongkat Ali: Risks & Precautions

Although not a side effect of the plant directly, adulteration of Long Jack products are common, and this supplement should only be purchased from a trustworthy source. The United States Food and Drug Administration has tested a number of products that claim to contain Tongkat Ali & found that a large number of these, particularly those purchased from overseas retailers online, did not contain the ingredient as stated, and in many cases, the preparation was adulterated with prescription and non-prescription drugs. There is a large danger in the use of products with unknown ingredients, and people are encouraged to purchase products containing Tongkat Ali from reputable sources.

Different Strengths & Preparations of Tongkat Ali

Tongkat Ali typically comes in preparation with a specific dilution ratio, of which 1:20 is the strongest available. In spite of this attempt to standardise dosage, there is no ingredient within the plant that is used to compare batches and preparations, so users should not be surprised if the effects, including side effects, fluctuate between preparations or brands, even if the same dilution is used each time.

Summary: Tips for Effective & Safe Use of Tongkat Ali

Tongkat Ali can be a safe and effective supplement when used appropriately. However, users should be aware of potential side effects and take steps to minimize the risk of adverse effects. As with any supplement, there are risks, even if minimal. It is recommended to consult with a healthcare professional before use of Tongkat Ali, especially if you have any underlying medical conditions or are taking other medications.

  • Talbott, S. M., & Talbott, J. A. (2013). Effect of Tongkat Ali on stress hormones and psychological mood state in moderately stressed subjects. Journal of the International Society of Sports Nutrition, 10(1), 28.
  • Tambi, M. I. B. M., Imran, M. K., & Henkel, R. R. (2012). Standardised water-soluble extract of Eurycoma longifolia, Tongkat ali, as testosterone booster for managing men with late-onset hypogonadism? Andrologia, 44(Suppl 1), 226–230.
  • George, A., Henkel, R., & Finkelstein, J. S. (2015). Efficacy and safety of a standardized herbal preparation of Tongkat Ali (Eurycoma longifolia) as testosterone booster for managing men with late-onset hypogonadism: A randomized controlled trial. Journal of the International Society of Sports Nutrition, 12(1), 1–12.
  • Low, B. S., Das, P. K., Chan, K. L., & Aziz, R. (2013). Eurycoma longifolia Jack in managing idiopathic male infertility. Asian Journal of Andrology, 15(4), 622–625.
  • Ismail, S. B., Wan Mohammad, W. M. Z., George, A., Nik Hussain, N. H., Musthapa Kamal, Z. M., & Liske, E. (2012). Randomized Clinical Trial on the Use of PHYSTA Freeze-Dried Water Extract of Eurycoma longifolia for the Improvement of Quality of Life and Sexual Well-Being in Men. Evidence-Based Complementary and Alternative Medicine, 2012, 1–10.
  • United States Food and Drug Administration. (2014). Hidden Risks of Erectile Dysfunction "Treatments" sold online.
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