An extreme dieting trend is catching on in the United States, and it is neither pretty nor comfortable.br br The K-E diet involves a person being fed through a tube in their nose, receiving a mix of protiens and fats, but no carbohydrates.br br Patients are fed constinuously through a feeding tube and have to carry a pump 247 for the full ten days of the diet. br br The results are quick, with most people losing just under 1kg a day. br But the diethas also gained critics who say that it induces a form of starvation.br br Al Jazeera's Stefanie Dekker reports.