Does ashwagandha raise testosterone?

Possibly — ashwagandha is one of the few herbal supplements with real (if modest) evidence behind it, mainly by lowering stress rather than acting as a direct testosterone booster.

Ashwagandha is an adaptogen — a herb traditionally used to help the body handle stress. Several small randomised trials have found that standardised extracts (often KSM-66 or Sensoril) modestly raised testosterone and improved sperm quality in some men, alongside clear reductions in cortisol, the stress hormone that works against testosterone. A few studies also reported small gains in strength and muscle when it was combined with resistance training. The effects are moderate, not dramatic, and the strongest results tend to be in stressed or sub-fertile men rather than already-healthy ones.

So the realistic way to see it: ashwagandha probably helps most by taking the cortisol load off, which indirectly supports testosterone, sleep, and recovery. It's not a substitute for the basics, but among a sea of useless testosterone boosters, it's one of the better-evidenced options.

What to do: if you want to try it, look for a standardised root extract (KSM-66 or Sensoril), commonly dosed around 300–600 mg a day, ideally for at least 8–12 weeks. It's generally well tolerated, but check with your doctor if you have thyroid problems or take sedatives, and avoid it in pregnancy. Treat it as a useful add-on to sleep, training, and stress management — not a replacement for them.