Sports Nutrition and Injuries

I just looked back at the injuries over the course of the year. Not saying dietary fitness and all that isn't important, but a lot of our injuries were concussions, blown out knees from hits, and ankles. Kamara did have a groin, but went out with it later in that game. I just don't see how nutrition would effect concussions and blows to the knees. Carrs broken hand. Some injuries just can't be prevented. Just bad luck.