Can PFAS from food and water disrupt your insulin production and cause diabetes?

What's actually in it

PFAS enter your body from nonstick cookware, food packaging, stain-resistant fabrics, and contaminated drinking water. Once in your blood, they circulate to every organ, including the pancreas, where beta cells produce insulin. They also affect the liver and muscles, where insulin does its job of clearing sugar from the blood.

Type 2 diabetes starts with two changes: beta cells produce less insulin, and your body stops responding to it properly.

What the research says

A 2026 study in Environ Int measured PFAS blood levels and assessed beta cell function and insulin resistance in a population sample. The results showed clear associations between higher PFAS and worse metabolic markers.

People with higher levels of PFOS, PFOA, and PFHxS had reduced beta cell output, meaning their pancreas produced less insulin in response to blood sugar. They also had higher HOMA-IR scores, a standard measure of insulin resistance.

PFAS appeared to damage beta cells through oxidative stress and mitochondrial dysfunction, reducing the energy supply the cells need to make insulin. In peripheral tissues, PFAS disrupted insulin receptor signaling, making cells deaf to insulin's message to absorb sugar.

The combination of less insulin production and more insulin resistance is the classic setup for developing type 2 diabetes. With diabetes rates rising worldwide, PFAS exposure may be one overlooked chemical driver.

Cut PFAS exposure by switching to ceramic or stainless steel cookware, filtering your tap water, and avoiding grease-proof food wrappers.