Can PFAS from everyday products affect insulin production and increase diabetes risk in women?

What's actually in it

PFAS from nonstick cookware, food packaging, water-resistant clothing, and PFAS-contaminated water accumulate in the body over years. They reach the pancreas and liver, where they affect the cells responsible for blood sugar regulation.

Beta cells in the pancreas make insulin. When beta cells work well, they release exactly the right amount of insulin to clear glucose from the blood. When they're disrupted, blood sugar stays elevated after meals. Over time, persistent elevation leads to type 2 diabetes. Insulin resistance (where the body's cells stop responding normally to insulin) makes the problem worse.

What the research says

A 2026 study in J Clin Endocrinol Metab analyzed PFAS concentrations and metabolic measures in adult women. Higher serum PFAS were associated with reduced beta cell function (measured by how much insulin cells produce in response to glucose) and higher insulin resistance markers.

The associations were specific to certain PFAS compounds, particularly PFOS and PFOA, the most studied long-chain PFAS. The study focused on women because women tend to have higher PFAS levels relative to body weight and may be more susceptible to metabolic effects.

Women already face higher lifetime diabetes risk from hormonal factors like gestational diabetes and menopause-related metabolic changes. PFAS exposure adds a chemical pathway on top of these biological vulnerabilities.

Reducing PFAS exposure isn't a cure for diabetes risk, but it removes one modifiable contributor. Switching from nonstick to stainless or cast iron cookware and using a certified PFAS water filter are the most impactful individual actions.