Chicken with potatoes, carrot-and-cabbage salad: it looks like a detox meal, but it's the menu at a school cafeteria in Rio de Janeiro, Brazil, which is seeking new ways to fight childhood obesity. Nearly one-third of children in Brazil are obese, an epidemic city health officials and community leaders are seeking to address in innovative ways, enlisting school cafeterias and taking their message of healthful eating to the street. IMAGES AND SOUNDBITES