While there is a lot of truth to the "holistic" medicine stuff, there is a wholelotta' bullshit,too. I will say this about fasting being spiritual. I went 8 days,flat of my back,split from the bottom of my breast bone,to the top of my "unhuh", mulling over the probability of my life expectancy exceeding 3-4 years. During that time, I had not one bite of anything but ice, and I had to spit that out. After about day four, I felt something that was different. I was no longer afraid, and I felt closer to God than I ever had before or since. I experienced that but if you had told me that fasting would help to produce that closeness, I would not have believed it. Yeah, there is something to fasting. I really need to do it again, for both the spiritual benefits and for this spare tire in my gut