Skip to main content
SupplementScience

Tribulus Terrestris — Frequently Asked Questions

This content is for informational purposes only and does not constitute medical advice. Consult your healthcare provider before starting any supplement. Full disclaimer

Frequently Asked Questions

Does tribulus terrestris actually boost testosterone?

No. Despite being marketed as a testosterone booster for decades, multiple well-controlled human studies show tribulus has no significant effect on testosterone, LH, FSH, or DHT in healthy men. The confusion arose from animal studies where tribulus did raise androgens, but these results do not translate to humans. If your testosterone is truly low, see a doctor — no OTC supplement meaningfully raises testosterone.

Why do some people feel different on tribulus?

Some users report improved libido or energy, which may be due to non-hormonal mechanisms (possible effects on androgen receptor sensitivity, nitric oxide, or dopamine), placebo effect, or the general adaptogenic properties of the plant. These subjective improvements occur without measurable changes in hormone levels.

What actually works for natural testosterone optimization?

Evidence-based strategies include: adequate sleep (7-9 hours), resistance training, maintaining healthy body fat (12-20% for men), sufficient vitamin D (2000-5000 IU/day if deficient), adequate zinc (15-30 mg/day if deficient), stress management, and limiting alcohol. No legal OTC supplement meaningfully raises testosterone in healthy eugonadal men.

References

  1. (). The aphrodisiac herb Tribulus terrestris does not influence the androgen production in young men. Journal of Ethnopharmacology. DOI
  2. (). The effect of five weeks of Tribulus terrestris supplementation on muscle strength and body composition during preseason training in elite rugby league players. Journal of Strength and Conditioning Research. DOI
  3. (). Does the association of Tribulus terrestris and Cornus officinalis improve sexual function and seminal quality?. Actas Urologicas Espanolas. DOI