On Friday, the state of Michigan banned the sale of all alcoholic energy drinks (55 in total) including the recently much maligned Four Loko.

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In the past decade, energy drinks set fire to non-alcoholic drinks sales in the same way Starbucks ( SBUX) once breathed new life into the coffee business.

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Caffeine is a particular worry for kids, who have already had their share of problems with products like energy drinks and alcoholic energy beverages.

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