Microplastics May Be Triggering Autoimmune Diseases
NonToxCo Research
Science & Safety Team · 4/7/2026
Microplastics are turning your immune system against your own body. A growing body of evidence links them to lupus, rheumatoid arthritis, and inflammatory bowel disease.
How Plastics Hijack Your Immune System
A 2026 review in Environ Geochem Health details the mechanisms. Microplastics change immune gene expression and trigger excessive reactive oxygen species production in macrophages, T cells, and B cells. That leads to a flood of pro-inflammatory cytokines and may promote the production of autoantibodies, the molecules that attack your own tissue.
They also activate neutrophils and natural killer cells, pushing the immune system further into overdrive.
The Chemical Additives Are Part of the Problem
It's not just the plastic itself. Plasticizers and chemical additives in microplastics bind to receptors on immune cells and cause mitochondrial dysfunction. The energy factories inside your immune cells get damaged, which further destabilizes immune regulation.
Which Diseases Are Linked
The review focuses on three major autoimmune conditions: systemic lupus erythematosus, rheumatoid arthritis, and inflammatory bowel disease. All three involve chronic inflammation driven by an immune system that's lost its ability to distinguish self from non-self.
What You Can Do
Reduce microplastic exposure: avoid plastic food containers, filter your water, don't heat food in plastic. And switch to non-toxic home essentials to lower the plastic load in your daily environment.
Also see non-toxic kitchen essentials for safer alternatives.