Nonstick Cookware Linked to High Serum Cholesterol

Chemical substances used in the production of fluoropolymers, which are in turn used in non-stick cookware and bakeware, may increase total and LDL cholesterol levels in children and teens, according to a new study published in the Sept 2010 issue of Archives of Pediatrics & Adolescent Medicine.

The study, led by Stephanie J. Frisbee, M.Sc., M.A., of West Virginia University School of Medicine, Morgantown, and colleagues showed almost all blood samples analyzed were contaminated with the chemicals used to make Teflon.

Humans are exposed to the chemicals of concern, namely, perfluoroalkyl acids—including perfluorooctanoic acid (PFOA) and perfluorooctanesulfonate (PFOS), through drinking water, dust, food packaging, breast milk, microwave popcorn, air and occupational exposure, according to the study’s background information.

Fluoropolymers or Teflon made of Perfluoroalkyl acids are used through an entire range of applications in non-stick cookware and breathable, waterproof properties to fabrics and upholstery. The acids can result from the breakdown of polymers used as a coating for commerical food packaging, fabrics, carpets and stain-resistant clothing.

Perfluoroalkyl acids primarily affected the liver as shown in previous animal studies. In humans, they could potentially cause alternations in cholesterol levels.

For the study, the researchers measured serum liqpid levels in 12,476 children and teens at an average of 11.1 years who participated in the C8 Health project, which resulted from the settlement of a lawsuit over PFOA contamination of the drinking water supply in the Mid-Ohio River Valley.

The average PFOA level was found at 69.2 nanograms per mL and average PFOS level was at 22.7 ng per mL. In children aged 12 to 19, PFOA concentrations were much higher than those detected in samples collected nationwide, 29.3 ng per mL versus 3.9 ng per ML while PFOS concentratiosn were similar, 19.1 ng per mL versus 19.3 ng per mL.

Higher PFOA levels were linked with elevated total cholesterol and bad cholesterol. However, PFOS was correlated with both good and bad cholesterol.

Either chemical was associated with triglyceride levels, the study found.

The study is not a trial, meaning that it does not prove higher Teflon compounds cause higher levels of cholesterol, although the possibility can’t be ruled out.

PFOA  has been associated with thyroid disease in previous studies. Animal studies showed that the Teflon compounds can affect the function of the mammalian thyroid hormone system, which is essential for maintaining heart rate, regulating body temperature and supporting many other body functions like metabolism, reproduction, digestion and mental health.