Hi Tilou,
I have gone to a plant-based diet because I was noticing forgetfulness and short-term memory loss. I don't blame you for not wanting to be a guinea pig.

If I may suggest, you might find some answers on the NIH (National Institute of Health) website they have tons of medical research article on dementia. Type key words in the search box and articles will pop-up. I'm, also, reading, The Alzheimer's Solution by Drs. Dean and Ayesha Sherzai, M.D. and trying to in cooperate better health choices into my lifestyle. Let us know how you are getting along.