Although long-term clinical trials are yet to be conducted, a preliminary study explored the influence of acute beetroot supplementation on age-related cognitive function.
In the study, older type 2 diabetics supplemented with 250 mL of beetroot juice for 14 days.
At the end of the study, they experienced a significant improvement in simple reaction time compared to a control group.
However, no effects were evident in other cognitive tests associated with decision-making, rapid processing, shape and spatial memory.