The aphrodisiac herb Tribulus terrestris does not influence the androgen production in young men

There was no significant difference between Tribulus terrestris supplemented groups and controls in the serum testosterone (TT1 (mean ± S.D.: 15.75 ± 1.75 nmol/l); TT2 (mean ± S.D.: 16.32 ± 1.57 nmol/l); controls (mean ± S.D.: 17.74 ± 1.09 nmol/l) (p > 0.05)), androstenedione (TT1 (mean ± S.D.: 1.927 ± 0.126 ng/ml); TT2 (mean ± S.D.: 2.026 ± 0.256 ng/ml); controls (mean ± S.D.: 1.952 ± 0.236 ng/ml) (p > 0.05)) or luteinizing hormone (TT1 (mean ± S.D.: 4.662 ± 0.274 U/l); TT2 (mean ± S.D.: 4.103 ± 0.869 U/l); controls (mean ± S.D.: 4.170 ± 0.406 U/l) (p > 0.05)) levels. All results were within the normal range. The findings in the current study anticipate that Tribulus terrestris steroid saponins possess neither direct nor indirect androgen-increasing properties. The study will be extended in the clarifying the probable mode of action of Tribulus terrestris steroid saponins.