alt Hacker Newsi heard aluminum food containers are often coated with toxic liners, like plastics, bpa, and pfas. If Alzheimers isnt a risk with pure aluminum metal, id say those liners are a huge risk. Are kitchen foils coated? Im pretty sure cans are most of the time.
"Plastic" in general isn't toxic as a liner. It's used in plumbing, and in zillions of containers for potable water and foods. When you get food from even a nice restaurant, they probably marinate meat in a plastic container, and squeeze fruit juice into a plastic container. They sous vide items in plastic.
I've also never heard of a plastic/Alzheimer's connection, only one claimed with aluminum.