I highly recommend the Budwig Diet, though I would add that in today's world of mineral depleted soils, nutrient depleted foods and all the chemicals in our food, air and water I think a person who is actively fighting cancer would be well advised to not rely solely on the Budwig Diet.
A number of people in the Oleandersoup Yahoo health group I host have used Budwig and still needed some extra cancer fighters. I would surely incorporate the diet if it were me, and it has saved the lives of a very great many people.