The Greatest Cost-Per-Calorie Bargain Ever?

$MCD - McDonalds:  I thought his was an entertaining article about a $1 burger from McDonalds.  I don't eat there very often, but maybe this will change my mind.  But there can't be a huge profit margin in a dollar burger.  Unless they sell a large drink with it!***
The Blaze - StoriesCould the McDonald's McDouble Actually Be the Greatest Cost-Per-Calorie Bargain Ever?

McDonald's.

Is McDonald's McDouble cheeseburger (two patties, one slice of cheese, costs about $1) the "cheapest, most nutritious and bountiful food that has ever existed in human history"?

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http://www.theblaze.com/stories/2013/07/29/could-the-mcdonalds-mcdouble-actually-be-the-greatest-cost-per-calorie-bargain-ever/

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