Then you have this new book:
The Alzheimer's Solution: A Breakthrough Program to Prevent and Reverse the Symptoms of Cognitive Decline at Every Age by Ayesha Sherzai, MD and Dean Sherzai, MD, directors of the Alzheimer’s Prevention Program at Loma Linda Medical Center. Their data showed that less than 5% of their older patients had dementia (mostly Seventh Day Adventists) compared to communities next door.
In the interview, they say "The best diet for brain health is full of whole foods like greens, legumes, berries, and whole grains and is very low in animal fats, saturated fats, and salt." No surprise since Seventh Day Adventists are typically vegetarians.https://bluezones.com/2017/09/researche ... able-find/