I would add: avoid sugar, metabolic syndrome, and processed foods.
Some in the medical community are calling Alzheimer’s “Type 3 Diabetes”, in other words the toxic protein plaques are made worse by sugar and starches which cause wild blood sugar and insulin swings. It contributes to the inflammation pathways.
Type 3 diabetes is one form of Alzheimer’s.
See: The End of Alzheimer’s: The First Program to Prevent and Reverse Cognitive Decline Hardcover August 22, 2017
by Dale Bredesen (Author)
Dr. Bredesen with Dr. Mercola, You Tube:
https://www.youtube.com/watch?v=qrQyxWP-S2s&t=1265s
The sugar thing may be real. Both my parents had sweet tooths. Sweet teeth? My mom now 7 years down the Alzheimers trail is a sugar junkie that we have to watch every second.
I think it is beneficial to limit all processed carbs. Avoid breads and pastries and sugars of all kinds, and only one serving of fruit a day. If you do this for 5-6 Days a week, it might help prevent Alzheimers. Eat potatoes and sweet potatoes and stuff, just avoid the processed carbs.