This is a great video on foods you should avoid in order to help protect your brain.
You should reduce/avoid:
-saturated fat (red meat and dairy high in fat)
-trans fat (cake, donuts, chips)
-cooking in these metal pans: iron, copper, aluminum
The article discusses that it is better to cook in a stainless steel pan (rather than cast iron).
You should eat:
(*Almonds are particularly good for the brain)
Don’t forget exercising: Getting out three times a week, (even for a brisk walk) for 30-40 minutes changes your brain for the better!