Insight : causes of obesity
Fancy weight loss diet proponents claim that their recipes will effectively attack overweight and obesity. Since diet authors are not in short supply, their business must be a lucrative one.
However, serious research suggests that it is a snake-oil business, without any robust foundation. The truth of the matter is that fancy diets do not make a real difference. It is the calories that really matter.
"Obesity arises when people consume significantly more calories than they expend in physical activity", says M. Nestle (Scientific American, Sept 2007).
Some nutrition facts about obesity: