Dr. DAVID LUDWIG (Director, Obesity Program, Children's Hospital in Boston): We focused on milk, fruit juices, and soft drinks, because these beverages are highly profitable and heavily advertised to children.

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While some chains offer non-soda and fruit options, "soft drinks and fried potatoes are still more common options on children's menus, "' according to the report.

CNN: 'Obesity on the menu' for kids, group says

The tongue is especially useful when it comes to beverages, such as fruit juices, milk, coffee, mineral water, wine and soft drinks.

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"Soft drinks and sugar-containing beverages are the low hanging fruit in public health today, " says Dr. David Ludwig, director of the New Balance Foundation Obesity Prevention Center, at Children's Hospital in Boston.

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