Effects of whey-derived lactopeptide β-lactolin on cognitive performance in mild cognitive impairment: a randomized, double-blind, placebo-controlled trial

This study aimed to investigate the effects of a long-term intervention with β-lactolin, a tetrapeptide (sequence: glycine-threonine-tryptophan-tyrosine) derived from milk, on cognitive performance in individuals with mild cognitive impairment (MCI).