A widely used over-the-counter supplement, glucosamine, has been identified as a potential factor in the accelerated progression of cognitive decline among patients already experiencing early-stage brain health challenges. According to a comprehensive study conducted by researchers at the University of Florida, the regular use of glucosamine—a staple in the medicine cabinets of millions of aging adults seeking relief from osteoarthritis and joint discomfort—is associated with a significantly higher likelihood that individuals with mild cognitive impairment (MCI) will progress to a formal diagnosis of dementia....