Can microplastics from household products increase your risk of heart disease?

What's actually in it

Microplastics are tiny fragments of plastic less than 5 millimeters wide. They come from plastic bottles, food packaging, synthetic clothing, and household textiles. You swallow them in food and water. You breathe them in from household dust. Once inside your body, some particles are small enough to enter the bloodstream and travel to organs, including the heart.

What the research says

A 2026 review in Hellenic J Cardiol examined the emerging links between microplastic exposure and cardiovascular disease. The review pulled together evidence from lab studies, animal research, and early human data. The picture that emerged was concerning.

Microplastics can cause inflammation in the walls of blood vessels. They trigger oxidative stress and activate immune cells in ways that promote plaque buildup in arteries. In animal studies, microplastic exposure led to changes in heart tissue and blood pressure regulation.

In humans, microplastics have already been found in atherosclerotic plaques removed during surgery. People with more microplastics in their plaques had worse outcomes. The review concluded that microplastics are a real and underappreciated risk factor for heart disease, and household products are a major source of daily exposure.