| 効果 | なし |
| 試験方法 | 二重盲検法 |
| 試験期間 | 1-6 ヶ月 |
| 被験者数 | 15 |
| 性別 | 男性 |
| 年齢 | 18-29, 30-44 |
| 体型 | Trained, 平均 |
この研究の注釈：
Subjects consumed 3.21mg/kg bodyweight of Tribulus Terrestris (45% saponins) daily for 8 weeks alonside their standard diet and supplement regimens; no significant differences in exercise performance between groups was noted nor any differences between groups.
Clinical Study Of Tribulus Terrestris Linn. In Oligozoospermia: A Double Blind Study
| 効果 | 減少 |
| 試験方法 | 二重盲検法 |
| 試験期間 | 1-6 ヶ月 |
| 被験者数 | 63 |
| 性別 | 男性 |
| 年齢 | 18-29, 30-44 |
| 体型 | 平均 |
この研究の注釈：
6g of tribulus root daily for 60 days in persons with low sperm count appeared to improve erectile properties and frequency of coitis as well as reducing weakness (improving fatigue). In these men, an increase in testosterone was noted (16.3%) but failed to reach statistical significance.
