Body mass index 1 Brazil 1 Childhood overweight 1 China 1 Federal District [Mexico] 1 Junk food 1 Mexico City 1 Mexico [North America] 1 School bans beverage 1 body size 1 child health 1 epidemic 1 feeding behavior 1 food intake 1 food policy 1 health policy 1 local government 1 obesity 1 public health 1