20 Foods That Boost Testosterone Naturally I’m often asked what’s the best way to increase testosterone, and usually, the answer is pretty simple. Get more sleep. Lose weight. Lift heavy. Avoid certain foods. And reduce stress. One thing I don’t mention very often is the importance of a healthy diet. Not only is a healthy diet important for producing increased testosterone levels, but there are numerous other benefits. I’ve put together this list of 20 foods that increase testosteron e. Fruits / Veggies 1.) Kiwi Native to north-central and eastern China, Kiwifruit is rich in Vitamin C and E, and a good source of dietary fiber. Studies on Vitamin C have shown to preserve testosterone concentrations, as well as reducing levels of circulating cortisol. What does this mean for you? Well, increased levels of cortisol are released in the adrenal glands during instances of stress. Because testosterone is released in the adrenal glands as well, this ca