Tongkat Ali and Testosterone: What the Science Says

🌿 Overview

Tongkat Ali (Eurycoma longifolia), also known as Longjack, is a traditional Southeast Asian herb known for its testosterone-boosting and adaptogenic properties. Modern research supports its role in enhancing male hormone levels, especially in men with low testosterone or age-related decline.

🧪 Scientific Evidence

✅ Meta-Review of 9 Randomized Controlled Trials

• Researcher: Kristian Leisegang, School of Natural Medicine, South Africa
• Findings: Significant increases in total and free testosterone (5% to 600%)
• Subjects: Healthy adults and hypogonadal men
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✅ Mechanism of Action

• Boosts Luteinizing Hormone (LH)
• Reduces cortisol (stress hormone)
• Lowers SHBG to increase free testosterone
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✅ Human Trial on Exercise-Trained Adults

• Study: Nova Southeastern University, 2024
• Participants: 33 males and females, 400 mg/day for 4 weeks
• Result: No significant change in testosterone or body composition
• View Source

💊 Dosage & Use

⚠️ Side Effects & Precautions

• Possible effects: insomnia, irritability, increased body temperature
• Not recommended for pregnant/lactating women or hormone-sensitive conditions
• May interact with blood sugar, clotting, or hormone medications

🧠 Summary

Tongkat Ali shows strong potential as a natural testosterone booster, especially for:

• Men over 35 with low testosterone
• Athletes with exercise-induced hypogonadism
• Individuals under chronic stress

For best results, use standardized extracts and combine with regular exercise and healthy lifestyle habits.

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