The Claim

The combination of Ashwagandha root extract supplementation (600 mg/day) with resistance training produces a statistically significant increase in lower body muscle strength, measured by one-repetition maximum (1RM) leg press, in healthy adult populations, with effect sizes of 1.22 in males (p=0.0049) and 0.63 in females (p=0.018) compared to placebo.

Source: Effects of Ashwagandha ( Withania somnifera) standardized root extract on physical endurance and VO 2max in healthy adults performing resistance training: An eight-week, prospective, randomized, double-blind, placebo-controlled study

What the research says

Supports is higher

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

Supports
61score
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.

Cause and effect
1 study reviewed
In plain English

Taking 600mg of Ashwagandha root extract every day while doing strength training helps people build more lower body muscle strength than just doing strength training with a fake pill (placebo). Men got about twice the benefit as women in the study.

See the scientific wording

Ashwagandha root extract (600mg/day) combined with resistance training significantly increases lower body muscle strength (1RM leg press) in healthy adults, with effect sizes of 1.22 in males (p=0.0049) and 0.63 in females (p=0.018) compared to placebo

What the research says

1 study

  1. Study: Effects of Ashwagandha ( Withania somnifera) standardized root extract on physical endurance and VO 2max in healthy adults performing resistance training: An eight-week, prospective, randomized, double-blind, placebo-controlled study

    This study tested exactly what the claim says - taking 600mg of Ashwagandha root extract daily while doing resistance training. The researchers found that people taking Ashwagandha got significantly stronger in leg press compared to those taking placebo, with the same p-values (0.0049 for men, 0.018 for women) mentioned in the claim.

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

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