The Claim

Daily supplementation with 400 mg of Tongkat Ali extract for five weeks is associated with a significant increase in muscular force, as measured by handgrip strength, in physically active seniors aged 57–72 years, regardless of sex.

Source: Tongkat Ali as a Potential Herbal Supplement for Physically Active Male and Female Seniors—A Pilot Study

What the research says

Supports is higher

Support is ahead, but a single strong opposing study can change this.

Supports
31score
Challenges
0score

These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.

Correlation
1 study reviewed
In plain English

Taking 400 mg of Tongkat Ali extract daily for five weeks is associated with higher handgrip strength 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 a significant increase in muscular force, as measured by handgrip strength, in physically active seniors aged 57–72 years, regardless of sex.

Why this might work

Tongkat Ali lowers a protein that binds testosterone in the blood, so more free testosterone is available to enter muscle cells. This testosterone activates signals in muscle cells that build more contractile proteins and improve nerve-to-muscle communication, making the muscles stronger.

Supported mechanismbased on 1 study

What the research says

1 study
  1. Study: Tongkat Ali as a Potential Herbal Supplement for Physically Active Male and Female Seniors—A Pilot Study

    This study gave older men and women 400 mg of Tongkat Ali every day for five weeks and found their handgrip strength got stronger. So yes, taking this supplement was linked to stronger hands.

Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies

Fit Body Science verdict — we translate health claims into clear verdicts backed by peer-reviewed research.

Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.