The study and its comparison
A blinded randomized trial assigned 180 men with mild or moderate erectile dysfunction to a standardized tribulus extract or placebo for twelve weeks. Eighty-six men in each group completed treatment. [1]
The reported intention-to-treat difference in the sexual-function score was 2.70 points, favoring the extract. Selected satisfaction and desire measures also improved. Adverse-event rates did not significantly differ. [1]
What the finding establishes
This result concerns a particular extract and selected patients, not every tribulus product. It does not establish comparative effectiveness against standard erectile-dysfunction treatments or a testosterone-boosting mechanism. An author worked in the manufacturer’s medical and regulatory department; complete funding was not established from the abstract. Longer-term safety remains outside this trial. [1]
A hypothetical distinction
Imagine a questionnaire improves without a demonstrated hormone mechanism. The questionnaire result should keep its own name.
| Detail | Interpretation |
|---|---|
| Measured outcome | Keep the endpoint specific |
| Study preparation | Not every retail product |
| Remaining uncertainty | Not resolved by a mechanism |

Sources for this article
- Evaluation of the efficacy and safety of Tribulus terrestris in male sexual dysfunction-A prospective, randomized, double-blind, placebo-controlled clinical trial.
Source consulted: 2026-09-19. This is a reference resource, not a claim that we conducted the studies or tested a product.