Regarding fasting, I know monks who fast Wednesday and Friday every day of their lives. They get good nutrition the rest of the week, never eat meat, stay away from white bread, sugar, etc., and live very balanced lives. Every single one of them lives to their late 80's, many over 100.

1.7 billion Catholics fast every Friday during lent and Muslims fast during Ramadan. As long as you get good nutrition most of the time it isn't a big deal to go one day without substantial food.


-Tim-