There is an important point on page 2 of the above article. It says:

Good quality fats and protein are very important.
Those of us who have avoided eating fats all our lives are having greater brain degeneration late in life.
This is because we have been missing the fats needed to make neurotransmitters, cell membranes (the brain of each cell) and hormones.
Whether or not you are afraid of fats, here are some suggestions.
Eat the organic chicken with the skin
and eat duck and chicken eggs including the yolk.
Supplement your foods with cold-water fish oil and coconut oil from the best sources.
Eat 4 teaspoons of coconut oil/day, more if you can, to avoid/cure dementia (see Dr. Mary Newport’s article)