A daily multivitamin-mineral supplement may slow biological aging in older adults, an analysis of the COSMOS-Mind study showed[1]. The study followed more than 2,200 participants aged 65 and over for three years[1]. Researchers found that three years of daily multivitamin use resulted in a 60% reduction in cognitive decline[1]. From a functional point of view, this represents approximately 1.8 years of acquired cognitive youth[1]. Multivitamins act on several biological pillars of aging, including genomic stability[1]. B vitamins, especially B₁₂ and folate, are essential for DNA synthesis and methylation processes that prevent genetic errors leading to neurodegeneration[1]. These findings represent a potentially groundbreaking factor in the field of longevity, especially given the simplicity and accessibility of this approach[1].