I have been having increasing problems with low testosterone, and related sexual dysfunction for several months. Endocrinoligist told me to lose belly fat, and I did drop ten poounds in about a month with little positive results. I'm 63, lift every other day,take vitamins, and protein shakes every day. I tried the botanical with no luck, and decided to give DIM a try. I take it three times a day, and like magic, my ability to have morning erections, and pretty good sex has returned. I think it suppresses the estrogen in my body, not sure if it is raising my testosterone. I'm not feeling stronger in the gym, and it would probably require steroids to see that happen. My hormone levels will be checked next month, I have to think they will be higher.