The importance of a healthy diet enhanced with essential amino acids may help cognitive performance, as shown in a study with 105 senior volunteers. Researchers investigated the effects of a powdered supplement containing seven essential amino acids on cognitive and psychosocial functioning. The participants were randomized into three groups and daily administered either a placebo, or 3 or 6 grams of the substance. After 12 weeks, those taking the 6-gram supplement showed improved performance in memory, cognitive testing, and social interactions.
Suzuki H, et al. Intake of seven essential amino acids improves cognitive function and psychological and social function in middle-aged and older adults: a double-blind, randomized, placebo-controlled trial. Front Nutr. 2020;7:586166. doi:10.3389/fnut.2020.586166.