BOTANICAL RESEARCH
Ashwagandha
Withania somnifera
What it is
Ashwagandha is a botanical root extract traditionally used in Ayurvedic practice and studied in a range of human research settings.
Why it's included
Included as part of the botanical formulation. The research summary below is about ashwagandha as an individual ingredient, not the finished U 2.0 product.
What the research says
An 8-week randomised, double-blind, placebo-controlled trial in overweight men (Lopresti et al., 2019) is described as using 300 mg twice daily and recording changes in DHEA-S and testosterone alongside wellbeing measures. A separate 8-week trial in resistance-trained men (Wankhede et al., 2015) is described as using 600 mg/day and reporting greater strength gains and a larger serum-testosterone increase versus placebo. The cited studies should be read in the context of the individual ingredient and study population.