Selenium, found in nuts (e.g. Brazil nuts), grains and meats have been found to improve learning and memory and reverse cognitive impairment following.
According to University of Queensland research selenium supplementation could increase neuron generation and improve cognition in elderly mice.
Furthermore, learning and memory deficits of stroke returned to normal in mice when they were given selenium supplements.
Leiter O, Zhuo Z, Rust R et al. Selenium mediates exercise-induced adult neurogenesis and reverses learning deficits induced by hippocampal injury and aging. Cell Metabolism. 2022, 3 February.
