Arsenic Exposure Inflames Your Gut From the Inside

You don't need to drink contaminated well water to get arsenic damage. Even subchronic (moderate, ongoing) arsenic exposure disrupts gut bacteria and triggers intestinal inflammation.

What the Study Found

A 2026 study in Food and Chemical Toxicology found that subchronic arsenic exposure caused intestinal microbiota dysbiosis and intestinal inflammation by activating the NF-κB signaling pathway. NF-κB is one of the body's master inflammation switches. Once it's flipped, inflammation cascades through the gut.

The arsenic reshuffled the gut bacteria population, reducing beneficial species and promoting harmful ones. Combined with the intestinal inflammation, it's a recipe for chronic digestive problems and immune dysfunction.

Where Subchronic Exposure Comes From

You get low-level arsenic exposure from rice, drinking water (especially well water), fruit juices, and vegetables grown in contaminated soil. It's not a single big dose. It's years of small exposures that add up.

What You Can Do

Cook rice in excess water and drain it. Test your well water. Vary your grains (quinoa, oats, and millet have less arsenic). Filter drinking water with a system rated for arsenic removal.

Check out our non-toxic kitchen alternatives for cleaner food prep.

Also see glass food containers for safer alternatives.

Source: Arsenic Gut Inflammation Study (2026). Food Chem Toxicol.