Here is another link on which countries have the highest deathrate from Alzheimers and the lowest rate of Alzheimers
https://www.worldlifeexpectancy.com/cause-of-death/alzheimers-dementia/by-country/
If you look at the diet of the various countries, the highest rate have a diet of mostly animal meat....while the lowest rate have a diet of mostly plant and fish.
The Mediterranean diet emphasizes plant and fish.
I am now convinced that a MacDonald Cheeseburger is the worst thing you can eat...because of the red meat (saturated fat), the cheese (dairy product) and the white bread (refined carbs which inflames your brain).[/QUOTE
I wonder if the difference in prevalence of Alzheimer’s might reflect a difference in diagnosis in various countries, rather than an actual difference in incidence. I wish there were an easy answer to preventing Alzheimer’s, but the evidence supporting diet, exercise, flossing, brain training, taking cholesterol drugs, drinking wine, etc. is all quite weak.