Regardless of what alternative method[s] your friend might use, they MUST_totally_ eliminate from their diet things that readily feed cancer, namely refined sugars and processed foods and fried foods. Short of going the Jerry Brunetti route, they should also reduce or eliminate most second-hand "by product" foods. It will do them well to include some of the methods of Gerson, Kelley, Christopher and Schulze; coffee enemas, juicing ( like carrots), lots of low-cooked and raw foods, herbs that promote circulation, detoxification and elimination, and hydro ( hot & cold cycles) water therapy.