In a perfect world there would be no illness and everyone’s immune system would be strong. Because that’s not the case there are numerous immune system boosters and various antioxidants (these are the things that fight off free radicals and ultimately do damage to the cells in your body) to help ward off illness and keep you in the best health you can be in. You cannot possibly get all of the proper nutrients you need from the food that we eat. The majority of it is over processed and void of the nutrients that are required to maintain proper health.