If you are trying to move your body into a more alkaline state, replace refined carbs with roots and gourds. Most grains are somewhat acid-forming, especially if they are ground, bleached, or otherwise refined. Root crops like sweet potatoes, yams, parsnips, and beets are rich in minerals that will alkalize the blood. They are loaded with antioxidants and vitamins. They range in the middle of the glycemic index as far as vegetables go, with parsnips being highest.