yes of course there is and it wont cost a great deal. I have been weight training off a couple of years and in my time have used many traning supplements for boosting testosterone. these are natural and are part of a healthy routein. you need to ne taking Zinc and Magnesium. its not good enough having it in a multi vit buy a Zinc and Magnesium supplement and take on an emptyish stomach an hour before bed. also Tribulus Terrestris a all natrul herd supplement wich again will boost test. take one with each meal. These will not have in my experience have any negative effect, men over 30 quite often suffer from low testosterone levels that keep declining and as an effect suffer from low libido and effected sleep