The Claim
Daily supplementation with 400 mg of Tongkat Ali extract for five weeks is associated with significant increases in total and free testosterone concentrations in physically active seniors aged 57–72 years, regardless of sex.
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 extract daily for five weeks is associated with higher levels of total and free testosterone in physically active adults aged 57 to 72, regardless of sex.
See the scientific wording
Daily supplementation with 400 mg of Tongkat Ali extract for five weeks is associated with significant increases in total and free testosterone concentrations in physically active seniors aged 57–72 years, regardless of sex, suggesting a potential hormonal effect of this herbal supplement in older adults.
Tongkat Ali causes the liver to produce less of a protein that binds testosterone, so more testosterone stays free in the blood. This free testosterone then activates muscle cells to improve strength.
What the research says
1 studyThis study gave older men and women 400 mg of Tongkat Ali every day for five weeks and found their testosterone levels went up. So yes, taking it seems linked to higher testosterone, but we can't say for sure it caused it because there was no comparison group.
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.