Long-term intake of nuts in relation to cognitive function in older women

This randomized controlled crossover trial investigated the effects of 16 weeks of soy nut consumption (67 g/day, high in protein and isoflavones) on cerebral blood flow (CBF) and cognitive performance in 23 healthy older adults. Soy nut intake increased regional CBF in brain areas linked to psychomotor speed, which improved significantly. However, no changes were found in memory or executive function. These findings suggest soy nuts may support brain health and psychomotor performance, possibly by enhancing cerebrovascular function through bioactive compounds like isoflavones.

Include 67 g/day of soy nuts in your diet to potentially enhance psychomotor speed and cerebrovascular health. This advice is based on robust findings from a randomized controlled trial in older adults. While the results are promising, benefits on other cognitive functions remain unproven, and the study's small sample size limits generalizability. Those with soy allergies or dietary restrictions should avoid this intervention. Consider soy nuts as part of a balanced, plant-rich diet.