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How Corn Syrup Might Be Making Us Hungry-and Fat | Observations, Scientific American Blog Network

Grocery store aisles are awash in foods and beverages that contain high-fructose corn syrup. It is common in sodas and crops up in everything from ketchup to snack bars. This cheap sweetener has been an increasingly popular additive in recent decades and has often been fingered as a driver of the obesity epidemic.

These fears may be well founded. Fructose, a new study finds, has a marked affect on the brain region that regulates appetite, suggesting that corn syrup and other forms of fructose might encourage over-eating to a greater degree than glucose. Table sugar has both fructose and glucose, but high-fructose corn syrup, as the name suggests, contains a higher proportion of fructose.

To test how fructose affects the brain, researchers studied 20 healthy adult volunteers. While the test subjects consumed sweetened beverages, the researchers used fMRIs (functional magnetic resonance imaging) to measure the response of the hypothalamus, which helps regulate many hunger-related signals, as well as reward and motivation processing.



The fact is that what we're experiencing right now is a top-down disaster. -Paul Krugman
by dvx (dvx.clt št gmail dotcom) on Wed Jan 2nd, 2013 at 03:23:01 PM EST
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