Do Onions Really Increase Testosterone by 314%?

Do onions increase testosterone?

Bodybuilding and fitness forums have gone crazy for a study which looked at the effects of onion juice in rats. We already knew eating vegetables is healthy, but apparently they can also boost testosterone levels – dramatically. The study in question reports that giving rats onion juice increased testosterone levels by more than 300%. But can these results be replicated in humans? Do onions increase testosterone?

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