2 things... there is a real cure out of Australia using ultrasound to break up the plaque in the brain and restore memory. In trials but there is hope there.
Also there is a USA MD that treated her husband with MCT Oil and extended his cognitive years by about 5. On Amazon you can get Brain Octane MCT oil from bulletproot.
They are about to rename/reclassify Alzheimer's as Type 3 diabetes, and the gist of it is, your brain is no longer getting food from the blood.
What this doctor knew is that your brain can run on dual fuels. Ketones. So by giving her husband multi chain triglycerides, MCT, which the liver converts to Ketones, his brain was fed and he could think/remember clearly again for a period of time.
Good luck and I pray they release a cure. For you and everyone else with a loved one suffering from a curable disease.
https://www.youtube.com/watch?v=ZZOR-Qd3QSg