This is another case study of a fast. Although this fast only lasted 36 days, it was done ten years after the Angus fast and had a few more laboratory tests done. It also illustrates the difference between obese and non-obese fasting. This person was dong a religious fast and started out with a normal BMI. It illustrates the difference between body status. Also this monk took communion wafers every day which amounted to 60 calories a day. He actually had a very reduced calorie diet, not a fast; and it seemed to make a difference.
I will require you to know some metabolic physiology and am going to assume you know some stuff as I didn't have enough time or desire to go into detail explaining everything. If you are not a nerd, you may want to consider skipping this episode.