These statistics are not from everywhere, but the point is to show that it is growing without being noticed. The prevalence of childhood obesity is also increasing public concern around the world. In Taiwan, for example, childhood obesity has increased dramatically in recent decades. In 1970, only about 2 percent of Taiwanese schoolchildren were considered obese. By 1988 this figure rose to 17% (Wu 2001). To date, one in four children is considered overweight in Taiwan (Taiwan Medical Association for the study of Obesity (TMASO) 2007)” (H.-H. Chang, RM Nayga Jr.