Correlation does not prove causation. High fat diets cause diabetes.
Just because avocado oil comes from a fruit does'nt mean you should have it during a fast. All fat and protein are detrimental to a fast. Even cancer patients can and should fast for 7-10 days safely.The Gerson plan calls for having 20 juices/day. It's better to have three or four.One fasts to give their body a rest and detoxify ,not for nutrition. Also drinking that much liquid might cause electrolyte imbalances.