Standardised water‐soluble extract of Eurycoma longifolia, Tongkat ali, as testosterone booster for managing men with late‐onset hypogonadism?

In simple terms

This study watched what happened to 76 men after they took a herbal supplement, but didn't compare them to men who didn't take it. So we can't say the supplement caused the improvements — maybe they felt better because they expected to, or their bodies changed on their own.

33%

Analysis score

33/ 44

Maximum 44 for a cross-sectional study.

Where the score came from

Reporting0

Methodology20

Publication100

Statistical23

Study type (basis of the score)

Cross-Sectional Study

Level 4 - Case series

What’s the bottom line?

A plant called Tongkat Ali was given to older men with low testosterone and tiredness.

Where does this study sit?

Reviews of RCTs (Meta-analyses)

Max 100

Randomized Trials

Max 90

Reviews of Cohort Studies

Max 85

Cohort Studies

Max 72

Reviews of Case-Control Studies

Max 63

Case-Control Studies

Max 58

Cross-Sectional & Case Series

Max 50

Expert Opinion

Max 5

StrongerWeaker

Cross-Sectional & Case Series

Level 4

33 / 100

Quality score

Snapshots of a population at a single point in time, or descriptions of small groups. Can identify correlations and prevalence, but cannot determine cause and effect.

Cannot establish causation

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Key takeaways

Summary

Based on the study abstract and findings.

1Yes — most men went from having low energy and low testosterone to feeling normal and having healthy hormone levels.
2Before: only 35.5% had normal testosterone; after: 90.8% did.
3Before: only 10.5% felt fine; after: 71.7% felt fine.

Score breakdown, methodology, conflicts of interest, evidence analysis & raw study data