ScienceDaily: Obesity -- a global health problem -- is increasing in many countries in step with increases in the food energy supply, according to a study published in the Bulletin of the World Health Organization today. The study, by authors based in New Zealand and the United States of America (USA), analysed increases in the food energy supply and obesity in 69 countries (24 high-, 27 middle- and 18 low-income) and found that both body weight and food energy supply had increased in 56 (81%) of them between...