Tribulus Terrestris and testosterone

What 2 graded rows on tribulus terrestris agree on for testosterone, and where they differ. Counted side by side, never averaged.

What the rows agree on

Each block and row is one graded row from the Tribulus Terrestris page, with its PubMed record.

Your question

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Tribulus Terrestris Choose another

Tribulus Terrestris and testosterone

2 rows · 504 people

They agree: both rows found no difference.

No difference
Improved
Each block is one evidence row, sized by how many people it enrolled, with its grade inside.
  • Grade C× 1
  • Grade D× 1
Rows
2
Trials
11
People
504
Pooled reviews may count some twice

What the rows share

From the rows

The best-graded row, grade C, is a systematic review of 483 people (2025) and found no difference.

The rows run from 21 to 483 people, published from 2005 to 2025: 1 pooled review and 1 single study.

The rows

2 no difference
  1. Grade CTotal testosterone and erectile function in men (systematic review) · No difference

    Systematic review, 10 studies · n 483 · 2025 · 10 studies (9 clinical trials, 1 uncontrolled) in healthy men and men with infertility, erectile dysfunction or hypogonadism, aged 16–70

    400–750 mg/day in the erectile-function studies · 1 to 3 months

    8 of 10 studies found no change in androgen levels; the 2 with a within-group rise in total testosterone (60–70 ng/dL) were in men with hypogonadism. Erectile function improved in 3 of 5 studies that measured it.

    Row on the Tribulus Terrestris page · PubMed 40219032 (opens PubMed)

  2. Grade DSerum testosterone, androstenedione and LH · No difference

    RCT · n 21 · 2005 · Healthy men aged 20–36

    10 or 20 mg/kg body weight per day in 3 doses · 4 weeks

    No difference from placebo in testosterone, androstenedione or luteinizing hormone at any of 5 time points.

    Row on the Tribulus Terrestris page · PubMed 15994038 (opens PubMed)

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