Man cooking tacos on a hot plate with bottled drinks in the foreground
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Would a tax on sugary drinks make Mexico healthier?

26 October 2013 Last updated at 00:03 BST

A controversial tax on soft drinks is currently being debated in Mexico's Congress.

But can a tax really reduce the nation's waistlines?

Over a third of Mexican adults are overweight, putting them way up the global league tables for obese nations.

A possible cause is found in another of Mexico's dubious honours - being the world's biggest consumer of soft drinks.

Now the government is proposing a controversial new step: a tax of eight US cents on every litre of sugary drink.

Juan Carlos Perez Salazar reports from Mexico City.