Here is an interesting research on why some of the foods are highly addictive
Some foods share common traits with highly addictive drugs.
Like other drug problems, they say, “food addiction” is characterized by:
And neuro-imaging studies show similar brain patterns in “food addicts” and drug addicts. In particular both show increased activation of the reward regions of the brain in response to food cues – just like other addictions.
Studies show sugar is more addictive than cocaine and fructose may be as addictive as alcohol.
http://www.greenmedinfo.com/blog/top-20-addictive-foods-are-you-hooked
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