Right from Dr Atkins New Diet Revolution to Low Carb Dieting, bookshelves are filled with diet books that woo the people who are embarrassed about swimsuits and outdoor activities. Hundreds (or thousands) of them promise dear chubby girl and boy to help her or him enjoy a nice trimmed body for themselves.

Many countries today think obesity is a national disaster. It is especially true for the developed world, where people hardly have a choice to move their body. From morning to night, they have all the comforts right at arms length. They pull out their four-wheel drive for grocery shopping from the shop down the street. At home they watch TV for 4-12 hours a day, while also putting something into their mouth.