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.
I agree. My mom is an ice cream demon. But at this point (going on 10 years) it makes her happy. Did it accelerate her disease? Perhaps.
If I had known this 15 years ago, could I have influenced her dietary choices? I doubt it. :(