World Obesity
Since 1980, the world obesity, and overweight has increased dramatically due to the enormous expansion in fast food restaurants. Researchers suggest that this trend could still increasing if people continue with their bad eating habits, specially in food with high levels of saturated fat.
Actually, the cost for a meal in fast food restaurants, are extremely low compared to the traditional food. In contrast, more sectors of the population will have more access. According to the World Health Organization, also known as WHO, the standard system for measuring overweight is the Body Mass Index (BMI). The World Health Organization, defines overweigh as a BMI of 25 or more, and obesity if its higher than 30. According to WHO researchers, 600 millions of adults suffer from overweight in 2005 and at least 400 millions of obesity.