Effects of dietary supplements on cognitive outcomes and physiological biomarkers in mild cognitive impairment: a systematic review and network meta-analysis (opens in new tab)

BackgroundMild cognitive impairment (MCI) represents a transitional stage between normal aging and dementia, affecting a significant proportion of the elderly population. Non-pharmacological nutritional supplements, such as vitamins, omega-3 fatty acids, probiotics, and herbal extracts, have been proposed as potential interventions to mitigate cognitive decline and improve physiological biomarkers. However, evidence on their efficacy remains inconsistent.ObjectiveThis systematic review and ne...