New Study Links ‘Forever Chemicals’ to Increased MS Risk

Research has revealed a concerning connection between certain man-made chemicals, commonly known as “forever chemicals,” and increased risks of multiple sclerosis (MS). A recent study focused on two major environmental toxins, perfluorooctane sulfonic acid (PFOS) and polychlorinated biphenyls (PCBs), suggesting that exposure to these substances may significantly raise the likelihood of developing this chronic autoimmune disease.

The study, led by Kim Kultima, analyzed blood samples from 900 individuals in Sweden who had been recently diagnosed with MS. The findings indicated that participants with the highest concentrations of PFOS and PCBs had approximately twice the odds of receiving an MS diagnosis compared to those with lower levels of these chemicals. MS affects the central nervous system, leading to symptoms such as numbness, muscle weakness, and cognitive difficulties.

Kultima noted in a press release, “People with the highest concentrations of PFOS and PCBs had approximately twice as high odds of being diagnosed with MS.” This research adds to a growing body of evidence linking these chemicals to various health issues, including liver damage, high cholesterol, fertility problems, and several types of cancer.

Examining the Impact of Chemical Exposure

The study also considered the cumulative effects of exposure to multiple chemicals, revealing that higher overall exposure correlated with increased odds of developing MS. Aina Vaivade, the first author of the study, emphasized that the team adjusted for known lifestyle and genetic risk factors, reinforcing the significance of their findings.

Researchers delved deeper into genetic interactions, discovering that individuals with a specific gene variant, previously thought to have a lower risk of MS, displayed higher odds of the disease when exposed to elevated levels of PFOS. Kultima remarked, “This indicates that there is a complex interaction between inheritance and environmental exposure linked to the odds of MS.” Understanding how environmental contaminants interact with genetic predispositions could offer insights into the origins of MS and other autoimmune diseases.

The implications of this study extend beyond MS, highlighting the broader health risks posed by forever chemicals. These substances infiltrate the environment, contaminating soil, water, and air, and studies show that nearly all Americans have detectable levels in their blood, including newborns. Despite being banned in the United States since 1979, PCBs continue to be found in the environment and older products due to their persistent nature. PFAS, the broader category under which PFOS falls, remains widely used in various consumer products.

Reducing Exposure to Harmful Chemicals

Experts recommend several strategies for individuals seeking to minimize their exposure to these harmful substances. Using water filters can help reduce PFAS levels in drinking water, while avoiding nonstick cookware and grease-resistant food packaging can further limit contact with these chemicals. Consumers are encouraged to look for “PFAS-free” labels and choose fresh, unpackaged foods to cut down on their exposure both at home and in their daily diet.

As research continues to uncover the long-term health impacts of forever chemicals, this latest study underscores the urgent need for public awareness and action to mitigate the risks associated with these substances.