Are you one of the many individuals who know food either increases or decreases you waist line? Are you aware it does far more then that? Ever been feeling tired with out any energy? Try eating a sandwich, the carbs and other food will give you the fuel to continue. It may even work better then a red bull. Did you know fish helps with brain function? Maybe the lack of memory and hard time concentrating is due to your diet? It is always a good idea to look around and see if you are eating the right amounts of good food? You may be surprised to hear things like less red meat may help reduce the risk of cancer.
Look at a few of these sites:
There are many other sites you can go too, but the first two are great places to start searching