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Obesogens: These Chemicals May Be Keeping You Fat

US News & World Report - Health Logo By Ruben Castaneda of US News & World Report - Health | Slide 1 of 8: If you've ever 
tried to lose weight, you may have tracked calories, read nutrition labels and cut down your portion sizes. But you probably didn
'
’t consider one factor increasingly implicated in the obesity epidemic: chemicals. One 2018 
study in PLOS Medicine, for example, found that overweight and obese adults with higher concentrations of man-made chemicals known as PFASs in their blood regained weight more quickly after weight loss. PFASs are in everything from food packaging to household cleaners. The study was the first to suggest pollutants can interfere with people's weight-loss efforts, says one of its authors, Dr. Qi Sun, an associate professor in the Harvard T.H. Chan School of Public Health’s department of nutrition.

Invisible ingredients

If you've ever tried to lose weight, you may have tracked calories, read nutrition labels and cut down your portion sizes. But you probably didn't consider one factor increasingly implicated in the obesity epidemic: chemicals. One 2018 study in PLOS Medicine, for example, found that overweight and obese adults with higher concentrations of man-made chemicals known as PFASs in their blood regained weight more quickly after weight loss. PFASs are in everything from food packaging to household cleaners. The study was the first to suggest pollutants can interfere with people's weight-loss efforts, says one of its authors, Dr. Qi Sun, an associate professor in the Harvard T.H. Chan School of Public Health’s department of nutrition.
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