Nonstick pans were created to make cooking a little easier. However, they may be causing more harm than good, because they have been linked to weight gain, according to a new report.
Researchers from Harvard University recently conducted a study, published in the scientific journal PLOS Medicine, to determine how using the cookware can interfere with weight loss.
To do so, they examined 621 overweight individuals who participated in a six-month weight loss plan. After 18 months, they found that the dieters had gained back nearly half the weight they lost.
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Upon further investigation, they discovered that people with the highest levels of perfluoroalkyl substances (PFAS), especially women, had gained the most weight. PFAS are man-made chemicals used to make products more stain-resistant, waterproof or nonstick, and they are found on pots, pans and some fast food wrappers.
"These findings suggest that environmental chemicals may play a role in the current obesity epidemic. Given the persistence of these PFAS in the environment and the human body, their potential adverse effects remain a public health concern," the researchers wrote.
While scientists aren’t exactly sure why PFAS could cause weight gain, they noted that people with higher levels of PFAS also had a lower resting metabolic rate. In other words, they were burning fewer calories throughout the day while doing normal activities.
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Researchers said they now hope to continue their investigations to better understand the underlying "link between PFAS exposure and weight regulation in humans."