"Fizzing with rage" (Octo-ber19th) described the lobbying battle in Mexico by makers of soft drinks to stop a tax on soda from being implemented. What you did not mention is that the evidence on taxing soda to treat obesity is often overstated in the first place. Despite experts agreeing that obesity is caused by multiple complex factors, public-health groups somehow feel justified in singling out soda. Why not lob a tax on pizza or sugar in food, given that most sugar calories come from food, not beverages?
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