Tuesday, September 3, 2013

Why Smokers Gain Weight When They Quit Smoking: Changes in Intestinal Flora



When smokers wave goodbye to their cigarettes, eighty per cent of them put on seven kilos on average. Their weight increases even if their calorie intake remains the same or even falls compared to the level before quitting smoking. What is the reason for this weight gain?
Researchers working with Gerhard Rogler of Zurich University Hospital attribute the cause to a changed composition of the bacterial diversity in the intestine. As they recently showed in a study in PLoS One, the bacterial strains that also prevail in the intestinal flora of obese persons take the upper hand in people giving up smoking.

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