I believe strongly that Alzheimers comes from many sources and one of them is eating meats and meat products. Why because this is a source of worms and it is proven that Alzheirmer's patients have worms on the brain. I know this to be true cause I have dementia and when I started treating the symptoms with diets I could see the imprint of a large worm on my left ear. I told the doctor and my friends that I could feel swelling of the brain and I can feel when there is extra activity as I cannot think well, I become irritated and notice that I have problem breathing.
So parts of your piece is true and I think that more need to look at the worm aspect from meat consumption for surely anyone who wants to be well from Alzheimers needs to be vegetarian.