Scientists are warning that bottled water may contain dangerous levels of microplastics that can lodge in vital organs and increase the risk of cancer. A new study by environmental expert Sara Sajedi from Concordia University found that people who drink bottled water consume about 90,000 more microplastic particles each year than those who drink tap water.

Microplastics are tiny plastic fragments that can enter the body through food, water, and air. Once inside, they can reach the lungs, blood, and even the brain. Research links these particles to chronic inflammation, hormonal disruption, infertility, and neurological damage. “This isn’t about acute toxicity,” Sajedi explained. “It’s about chronic toxicity that builds up over time.”

Experts say microplastics may also disrupt gut bacteria, potentially increasing the risk of bowel cancer and depression. Some studies even show they can alter metabolism and immune function.

Sajedi is urging governments to regulate single-use plastic bottles and require labels warning consumers of health risks. “People must understand the danger,” she said. “Switching to glass, metal, or natural materials can help protect our health and our planet.”