The Claim

Withania somnifera supplementation at 300mg twice daily for 8 weeks significantly reduces body fat percentage by 3.5% (95% CI: 2.0%, 4.9%) compared to a reduction of 1.5% (95% CI: 0.4%, 2.6%) in placebo (p=0.03) among healthy young untrained males undergoing resistance training.

Source: Examining the effect of Withania somnifera supplementation on muscle strength and recovery: a randomized controlled trial

What the research says

Supports is higher

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

Supports
68score
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.

Quantitative
1 study reviewed
In plain English

Taking ashwagandha supplements (300mg twice daily) for 8 weeks while doing weight training may help men lose more body fat - about 3.5% versus 1.5% with a placebo pill.

See the scientific wording

Withania somnifera supplementation (300mg twice daily for 8 weeks) significantly reduces body fat percentage by 3.5% (95% CI: 2.0%, 4.9%) compared to 1.5% (95% CI: 0.4%, 2.6%) in placebo (p=0.03) in healthy young untrained males undergoing resistance training

What the research says

1 study

  1. Study: Examining the effect of Withania somnifera supplementation on muscle strength and recovery: a randomized controlled trial

    This study directly confirms the claim - it used the same ashwagandha supplement at the same dose for the same duration in the same type of people, and found exactly the same 3.5% body fat reduction compared to placebo.

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.