The Weight Watchers Research Department reports that testosterone levels are directly related to weight issues in men. According to Weight Watchers, a 2006 research study found that obese men were 2.4 times more likely to have low testosterone compared to men at a healthy weight. Likewise, healthy, active individuals are more likely to have normal or better testosterone levels. Although there is a synthetic testosterone hormone that can be taken to raise hormone levels, the Food and Drug Administration (FDA) and most physicians don’t recommend its use. Instead, they suggest that you raise testosterone levels naturally through exercise, losing weight if necessary and maintaining a healthy diet.