Good Nutrition: Eat a variety SMART X of foods of different colors without a lot of added ingredients or processes. Add some cold-water fish to diet (tuna, salmon, mackerel, halibut, sardines, and herring) which contain omega-3 fatty acids. Learn what a portion-size is, so you don't overeat. Try to eat more foods low on the Glycemic Index.If you can only do one thing, eat more vegetables, particularly leafy green ones.- "The…