
1. What makes you think fasting is any more enjoyable than light to moderate exercise? Repeat after me: "Starvation is painful." With exercise you get pain modulation in the form of endorphines. Fasting
2. How are you planning to avoid gaining when going back to your body's set-point caloric intake after fasting for 6 months?
3. The less you eat, the smaller the margins and the higher the risk of not getting the nutrients you need. And no, supplements will not magically fix a deficient diet.
http://www.quackometer.net/?suspectquack=Dr.+Centeno:
This person may be associated with Quackery.
Some people manage by the book, even though they don't know who wrote the book or even what book.