Chart of the Week: Is food too cheap for our own good?

BY DREW DESILVER
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According to a new article in CA: A Cancer Journal for Clinicians, Americans in the 1930s spent a quarter of their disposable income on food. That share has fallen steadily through the decades, to the point where today less than 10% of Americans’ disposable dollars go for food. (That varies across income groups, of course: The poorest 20% of Americans still spend about a third of their disposable income on food.)
 
And even as the real cost of food goes down, each dollar we spend buys us more calories than it used to. The average American’s total caloric intake (adjusted for spoilage and other waste) rose from 2,109 calories in 1970 to 2,568 calories in 2010, according to U.S. Department of Agriculture data — the equivalent of an extra steak sandwich every day. Little surprise, then, that more than 78 million U.S. adults, or 34.9%, were obese in 2011-12 — more than twice the rate found in a 1976-1980 health survey.
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