Children who eat more burgers are more likely to have asthma for life, a new study in Thorax says, while children who eat more fruit, fish and cooked green vegetables lower their odds for asthma and wheeze. Researchers at the Institute of Epidemiology at Ulm University in Germany collected data about 50,004 randomly chosen 8- to 12-year-olds from 20 countries. Parents were asked about their children's allergic diseases and exposure factors. In addition, nearly 30,000 were skin- prick tested. While diet did not appear to influence allergies, it was associated with asthma and wheeze risk. Children with higher burger consumption had a higher lifetime prevalence of asthma and wheeze, especially among children without allergies from more affluent countries.