United States: The younger population of the United States is at a heightened risk of exposure to deadly and fatal diseases through tap water, food wrappers, and shampoo. According to the latest study, these basic daily items are prone to spread ‘forever chemicals.’
As per the researchers, these toxic substances may damage the microbiome – a protective balance of bacteria in the gut, which is considered to be delicate. If an individual gets exposed to these chemicals, they might have a lower level of gut bacteria, which might prevent inflammation – which may lead to diseases like colon cancer, according to Daily Mail.
Notably, the chemicals are also called per- and polyfluoroalkyl substances (PFAS).
Along with a test on the microbiome, the researchers have also shed light on the impact of the substances on the kidneys. As per the researchers, forever chemicals are linked to a more than 50 percent decrease in kidney function. This decrease was noted during the time span of four years.
Since their introduction in the 1940s, PFAS, colloquially referred to as “forever chemicals” due to their enduring presence within biological and environmental realms, have been utilized extensively to imbue various products with resistance to stains, grease, and water. However, an expanding corpus of research has linked these persistent compounds to an array of health issues, including immune dysregulation, pregnancy complications, and malignancies such as kidney and testicular cancer, as per Daily Mail.
Simultaneously, researchers are examining the potential role of the gut microbiome in the alarming increase in early-onset colorectal cancer, as diagnoses among those younger than 55 have nearly doubled in the last quarter-century.
A recent 2024 investigation revealed that over 70 million Americans might reside in areas where drinking water is contaminated with PFAS. In response, the Environmental Protection Agency (EPA) mandated that public water systems begin testing for and curbing PFAS levels by 2025.
Beyond water, exposure to PFAS can arise through various channels, including consuming food processed near PFAS production sites, consuming fish from contaminated waters, and inhaling particulates from polluted soil or dust, as reported by the Centers for Disease Control and Prevention (CDC).
Long-term PFAS exposure has been associated with heightened risks of prostate, kidney, and testicular cancers, developmental issues in children, reduced fertility in women, and endocrine disturbances, per EPA findings. Among these, kidney damage is one of the most widely acknowledged consequences, prompting scientific inquiries from experts like Professor Jesse Goodrich, as mentioned by Daily Mail.
Professor Goodrich, based at the University of Southern California, mentioned that PFAS exposure appears to correlate with increased risks of metabolic infections, such as diabetes and chronic kidney disease—conditions contributing to a surge in mortality rates across the United States. Goodrich’s study, published in Science of the Total Environment, underscored the urgency of these findings.
In his research, Professor Goodrich analyzed 78 participants, averaging 20 years of age and residing near USC, all without preexisting conditions that could impact gut health, such as obesity, diabetes, or infections. In 2014, stool and blood samples were collected to establish baseline gut microbiome and PFAS levels, and each participant was assigned a “PFAS burden score” to quantify their exposure to various chemical mixtures.
Follow-up sampling in 2018 revealed a relationship between elevated PFAS levels and diminished populations of Lachnospiraceae—a bacterium known to mitigate inflammation and protect against kidney disease. This correlation was further substantiated by observing that individuals with higher PFAS burden scores exhibited an approximate 2.4 percent decline in kidney function over time, according to Daily Mail.
A gradual reduction in kidney function can culminate in chronic kidney disease, a progressive condition that impairs the kidneys’ ability to cleanse blood, leading to toxic accumulations and potential systemic failure, as documented by the Mayo Clinic.
Although Professor Goodrich emphasized that the precise mechanisms by which PFAS induce kidney damage remain undetermined, evidence suggested that disruption of the gut microbiome may play a pivotal role. The gut’s microbial ecosystem is known to produce metabolites that influence kidney health and inflammation regulation.
Notably, Professor Goodrich advises caution in interpreting these findings due to the study’s limited sample size, which may constrain its generalizability.
However, the potential ramifications of PFAS on human health extend beyond renal concerns. Studies indicate that these chemicals can attenuate immune response, as evidenced by research from Northeastern University, which suggests that PFAS exposure may weaken the body’s defenses against infections. A 2023 study from Yale School of Public Health further demonstrated that specific PFAS compounds can accelerate the proliferation and metastasis of colorectal cancer cells, implicating these chemicals in more aggressive cancer progression, as highlighted by Daily Mail.
Firefighters, frequently exposed to PFAS-laden firefighting foams, have displayed elevated incidences of colorectal cancer, according to Yale epidemiologist Jie Zheng. Current estimates suggest that up to 80 percent of colorectal cancer cases may be attributable to environmental factors, including chemical exposures.