Tongkat Ali Benefits, Dosage & Side Effects Supplement Information and Usage Guide

Known for boosting testosterone, Tongkat Ali is used to enhance libido, athletic performance, and energy levels.

Tongkat Ali (Eurycoma longifolia), also known as longjack, is a traditional herb from Southeast Asia used to enhance energy, libido, and male hormonal balance. It is especially popular in athletic and men’s health supplements.

The root contains quassinoids and other compounds that may help increase testosterone levels, reduce cortisol, and support physical performance. Extracts are commonly standardized for consistency.

People take Tongkat Ali for libido, strength, and stress resilience. While some clinical studies are promising, especially in men’s health, more extensive research is still needed.

Other names & forms of Tongkat Ali supplement : eurycoma longifolia, longjack, tongkat ali extract

Benefits

The benefits of Tongkat Ali include testosterone support, enhanced libido, and improved physical performance:

Dosage

Dosage recommendations for Tongkat Ali supplement should be followed according to personal health goals:

  • Testosterone and energy: 200–400 mg/day of Tongkat Ali extract (standardized to 2–10% eurycomanone).
  • Study-based range: 100–200 mg once or twice daily.
  • Root powder: 1–2 grams/day, often in capsules.
  • Recommendation: Cycle use (e.g., 5 days on, 2 off) and monitor mood or sleep changes.
Tongkat Ali dosage should be tailored by a healthcare professional to your condition.

Side Effects

Tongkat Ali can help boost energy and libido, but you may notice some mild side effects as your hormones adjust. Keep an eye out for:

  • Occasional restlessness or insomnia, especially when taken later in the day
  • Mild headaches or dizziness in sensitive individuals
  • Possible gastrointestinal upset—nausea or stomach cramps—if taken on an empty stomach
  • Temporary irritability or mood swings as testosterone levels shift
  • Rare mild increase in heart rate or palpitations at higher doses

Interactions

No known interactions have been documented for Tongkat Ali; as with any supplement, check with your healthcare provider if you take other hormone or stimulant therapies.

Precautions

Before adding Tongkat Ali to your regimen, confirm that none of these apply to you. If they do, consult your healthcare provider:

  • Individuals with hormone-sensitive cancers (e.g., prostate, breast): Tongkat Ali may influence testosterone; avoid unless supervised
  • People with cardiovascular conditions (e.g., arrhythmias, hypertension): Can increase heart rate; use with caution and monitor closely
  • Those on blood-thinning medications: Potential to affect clotting; monitor clotting parameters
  • Pregnant or breastfeeding women: Limited safety data; best to avoid
  • Patients scheduled for surgery: May interact with anesthesia and affect blood pressure; discontinue at least two weeks prior

Studies

These studies provide scientific insights into Tongkat Ali benefits:

A 2018 randomized, placebo-controlled trial in 76 men with late-onset hypogonadism found 200 mg/day Tongkat Ali (Eurycoma longifolia) extract for 12 weeks increased testosterone by 35% versus 10% in placebo (P < 0.01) and improved erectile function scores.

A 2019 double-blind RCT in 63 mildly stressed subjects reported that 200 mg/day Tongkat Ali for 4 weeks reduced cortisol:DHEA ratio by 16% and improved mood and stress questionnaires versus placebo (P < 0.05).

A 2020 randomized trial of 120 mg/day Tongkat Ali in endurance athletes for 8 weeks showed no significant changes in VO₂max or lactate threshold compared to placebo (ns).

Despite traditional use for fertility, no RCTs have evaluated Tongkat Ali’s effects on sperm quality or reproductive outcomes in healthy men.

This article was originally published on Stackbb.com, your trusted source for science-based supplement guides.

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Important Disclaimer: The information provided on this page about Tongkat Ali supplement is for informational purposes only and has not been reviewed or validated by a medical professional. It is not intended to substitute professional medical advice, diagnosis, or treatment. Always consult your doctor or qualified healthcare provider before starting, stopping, or changing any supplement or part of your healthcare regimen. Individual needs and responses to supplements may vary, and what works for one person may not be appropriate for another.