Water only fasting is another approach you might consider.
It seems to me that it is the body that has to heal itself and that other external substances can complicate and confuse the body's response.
Water fasting totally clears the body of toxins, enhances the immune system and if continued for long enough can eliminate tumors.
If you decide on this approach please gain advice from someone who is an expert on fasting - or someone who practices Natural Hygiene.
Here are some links that might be of interest re: Fasting