Eurycoma Longifolia - Effects, Dosage and Uses
Eurycoma Longifolia is a Southeast Asian medicinal plant traditionally used to support vitality, male health, and overall well-being.
Things worth knowing about "Eurycoma Longifolia"
Eurycoma Longifolia is a Southeast Asian medicinal plant traditionally used to support vitality, male health, and overall well-being.
What is Eurycoma Longifolia?
Eurycoma Longifolia, commonly known as Tongkat Ali or Longjack, is a medicinal plant native to Southeast Asia, belonging to the Simaroubaceae family. It grows predominantly in Malaysia, Indonesia, Thailand, and Vietnam. For centuries, the root of this plant has been used in traditional medicine as a tonic, aphrodisiac, and general health promoter. Today, Eurycoma Longifolia is a widely used ingredient in dietary supplements, particularly in the areas of sports performance and male health.
Active Compounds and Mechanism of Action
The pharmacological activity of Eurycoma Longifolia is attributed to several bioactive compounds, including:
- Quassinoids (e.g., eurycomanone): considered the primary active compounds with potential adaptogenic and androgenic properties
- Alkaloids (e.g., canthin-6-one alkaloids): associated with antimicrobial and cytotoxic effects
- Polysaccharides and peptides: potentially immunomodulatory and adaptogenic
It is believed that Eurycoma Longifolia promotes the release of free testosterone by inhibiting the binding of testosterone to sex hormone-binding globulin (SHBG). Additionally, the plant may positively influence the hypothalamic-pituitary-gonadal axis, thereby stimulating the body's own testosterone production.
Traditional Uses
In traditional Southeast Asian medicine, Eurycoma Longifolia has primarily been used for:
- Enhancing libido and sexual performance
- Supporting male fertility
- General vitality and energy
- Treating fever and as an antimalarial remedy
- Supporting the immune system
Medical Applications and Scientific Evidence
Testosterone and Male Health
Several clinical studies suggest that Eurycoma Longifolia extracts can increase testosterone levels in men with hypogonadism or stress-related hormonal deficiencies. A 2012 study published in Evidence-Based Complementary and Alternative Medicine demonstrated significant improvements in testosterone levels and quality of life in older men.
Athletic Performance and Muscle Development
Eurycoma Longifolia is widely used by athletes to support muscle development and physical performance. Some studies indicate improvements in muscle strength and mass, as well as a reduction in stress markers, partly attributed to its adaptogenic properties.
Stress Reduction and Cortisol
A clinical study suggested that daily intake of standardized Eurycoma Longifolia extract can reduce salivary cortisol levels and decrease perceived stress, indicating potential adaptogenic effects.
Male Fertility
Some studies suggest that Eurycoma Longifolia may improve sperm quality and motility, pointing to a potential supportive role in addressing male infertility.
Dosage and Intake Recommendations
Dosages used in clinical studies vary. Typically, 200 to 400 mg per day of a standardized root extract (often a 100:1 extract or standardized to eurycomanone content) is recommended. Supplementation is usually carried out over a period of several weeks. It is advisable to consult a healthcare professional before starting supplementation.
Safety, Side Effects, and Contraindications
Eurycoma Longifolia is generally considered well-tolerated when used as directed and within recommended dosages. Possible side effects include:
- Sleep disturbances or restlessness at higher doses
- Increased body temperature
- Irritability
Contraindications: Individuals with hormone-sensitive conditions (e.g., prostate cancer), pregnant or breastfeeding women, and children should not take Eurycoma Longifolia. Those taking medications should consult a physician before use.
References
- Tambi, M. I., 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.
- Talbott, S. M. et al. (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.
- Rehman, S. U. et al. (2016): Eurycoma longifolia: Medicinal Plant in the Prevention and Treatment of Male Osteoporosis due to Androgen Deficiency. Evidence-Based Complementary and Alternative Medicine.
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