Study : Tribulus Has No Effect On Testosterone

www.ncbi.nlm.nih.gov/pubmed/17530942?ord...anel.Pubmed_RVDocSum

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

Neychev VK, Mitev VI.
Department of Chemistry and Biochemistry, Medical University, 2 Zdrave str., Sofia-1431, Bulgaria. EMAIL ADDRESS REMOVED

OBJECTIVE: The aim of the current study is to investigate the influence of Tribulus terrestris extract on androgen metabolism in young males. DESIGN AND METHODS: Twenty-one healthy young 20-36 years old men with body weight ranging from 60 to 125 kg were randomly separated into three groups-two experimental (each n=7) and a control (placebo) one (n=7). The experimental groups were named TT1 and TT2 and the subjects were assigned to consume 20 and 10 mg/kg body weight per day of Tribulus terrestris extract, respectively, separated into three daily intakes for 4 weeks. Testosterone, androstenedione and luteinizing hormone levels in the serum were measured 24 h before supplementation (clear probe), and at 24, 72, 240, 408 and 576 h from the beginning of the supplementation. RESULTS: 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+/-0.274U/l); TT2 (mean+/-S.D.: 4.103+/-0.869U/l); controls (mean+/-S.D.: 4.170+/-0.406U/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.

Correct in YOUNG men- but is effective in older individuals with sub normal Test levels- so post cycle your test levels are sub normal or non existant in some cases.

Can anybody that has used tribulus comment on whether they had any positive or negative results?

tribulus is pure shit!!!
I've used countless products with tribulus as the main ingredient and was badly disappointed by every single one!
if you're lookingt for something that boosts test (other than gear obviously) try eurycoma longifolia (or tongkat ali/long jack)

Jayman wrote:

tribulus is pure shit!!!
I've used countless products with tribulus as the main ingredient and was badly disappointed by every single one!
if you're lookingt for something that boosts test (other than gear obviously) try eurycoma longifolia (or tongkat ali/long jack)

funny you mention that...I bought some whey yesterday.The whey was packaged with a testo booster that along with tribulus contains long jack extract. Not that Ive shut down or anything but my libido has been kinda low for a while and seen as I was going to buy a testo booster anyway I took the package. Now I don`t know if its just the placebo effect or it actually works but I was kinda happy last night... :laugh: :laugh: took again this morning and been happy the whole day... :blush:

hahahaha happy chappy hey
yeah I bought some eurycoma from supplements sa and I could honestly feel it working whithin an hour of taking the first serving, however after a month of taking tribulus I felt sweet blue f#*k all!!!