From Stony Brook University News:
A diet low in carbohydrates could stave off, or even reverse, the effects of aging on the brain, Stony Brook-led research finds.
A study using neuroimaging led by Stony Brook University professor and lead author Lilianne R. Mujica-Parodi, PhD, and published in PNAS, reveals that neurobiological changes associated with aging can be seen at a much younger age than would be expected, in the late 40s. But the study also suggests that this process may be prevented or reversed based on dietary changes that involve minimizing the consumption of simple carbohydrates.
Even in younger adults, under age 50, dietary ketosis (whether achieved after one week of dietary change or 30 minutes after drinking ketones) increased overall brain activity and stabilized functional networks.
Steve Parker, M.D.
PS: All my diets include a low-carb option.