What's good for your aging gut may also be good for your aging brain. The first study of its kind in twins has found that taking daily protein and prebiotic supplements can improve scores on memory tests in people over the age of 60.

The findings are food for thought, especially as the same visual memory and learning test is used to detect early signs of Alzheimer's disease.

https://www.sciencealert.com/a-cheap-daily-supplement-seems-to-boost-brain-function-in-older-people