Acidic vs. Alkaline Foods | Most people don’t realize how much the pH level of your body affects your overall health. The pH of the foods we eat has a huge affect on our organs and our immune system. Diseases thrive in acidic environments but cannot survive in alkaline environments. Notice that most of the Super Foods are alkaline. Also, notice that the typical western diet of refined grains, meat, dairy, and sugar are extremely acidic. Eat more alkaline foods!