I just learned that eating carrots, or any other fruit or veggie that's high in Vitamin A, is an excellent way to prevent an infection. If you are trying to take care of yourself - or feel that you've injured yourself but not badly enough to stay off the workout train - bone up on your Vitamin A. It stocks you up with white blood cells so you can fight off anything gnarly that tries to keep you down. Carrots are awesome - they offer 340% of the daily intake. Crunch crunch.