If you think that you are only building muscles with your whey protein supplements, think again. You may also be beefing up your ability to fight cancer. Scientists at Ohio State University have found that whey protein can boost levels of glutamine. Glutamine, a natural antioxidat,  can help fight free radicals, the chemicals that promote cancer. Free radicals pull electrons from cell membranes (among other places), injuring tissues in the process. The damage caused by free radicals has been shown to promote cancer. So, especially for athletes, it is important to fight free radicals with hefty doses of antioxidants. And remember, guys, this means whey protein might help fight prostate cancer as well.