I am getting a degree in natural medicine and I work with alternative solutions. Everything we put in our mouth for food will directly effect our health. The hardest thing to do is change our eating habits but it is the easiest and best solution. Get some pH strips and measure his alkalinity. I would bet he is acidic. I would start with a natural cleanse and then start moving his diet to more raw vegetables. Do away with all white sugar, white flour, bread, rice, grains for at least two weeks or more. Only eat lean meats and raw or lightly steamed vegetables. Only berries for fruit since most others have high sugar content. He doesn't need sugar in any form right now. Get on an antifungal such as olive leaf extract from Seagate or oregano from North American Spice. After two weeks, depending on how he is doing, you can start adding other foods such as potatoes, brown rice, beans or grains in moderation but keep 70-80% of what he eats vegetables raw or steamed. Excellent reading from Doug Kaufmann at www.knowthecause.com or Dr. Young's pH Miracle. Beware that he might have anything from flu-like symptoms to headaches starting on this program. That is normal from the toxins releasing from his body. I have used this method with my own family. We haven't been to the doctor in years. My boys are 26, 21, and 20. Had I known then what I know now, I would never had given them a grain of sugar in any form.