The Claim
Four weeks of daily 400 mg Tongkat Ali supplementation has no significant effect on salivary free testosterone or cortisol concentrations in exercise-trained males and females.
What the research says
Supports is higher
Support is ahead, but a single strong opposing study can change this.
These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.
Taking 400 mg of Tongkat Ali daily for four weeks does not change the levels of free testosterone or cortisol in the saliva of people who exercise regularly.
See the scientific wording
Four weeks of 400 mg daily Tongkat Ali supplementation does not significantly alter salivary free testosterone or cortisol concentrations in exercise-trained males and females, indicating no measurable hormonal effect in this population.
The body keeps testosterone and stress hormone levels steady because the brain and glands that control them do not respond to Tongkat Ali, so levels stay the same even after taking it daily for four weeks.
What the research says
1 studyStudy: The Effect of Tongkat Ali Supplementation on Body Composition in Exercise-Trained Males and Females
People who took 400 mg of Tongkat Ali daily for four weeks didn’t see any change in their testosterone or stress hormone levels compared to those who took a sugar pill — so it doesn’t boost or lower these hormones in people who work out regularly.
Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.