It's not just genetics.
Walsh
Bryan
B
D002648:Child; D002675:Child, Preschool; D004032:Diet; D004777:Environment; D005006:Ethnicity; D005260:Female; D005843:Geography; D006801:Humans; D007182:Income; D008297:Male; D050177:Overweight / Q000453:epidemiology / Q000209:etiology* / Q000235:genetics; D014481:United States / Q000453:epidemiology