Yes, though you mostly need to watch out for raw/green potatoes, and most cases of potato poisoning are not fatal.

I think most of the nightshades can be poisonous/deadly in some way- eggplants can be bitter enough to upset your stomach if you don’t prepare them right, tomatoes are just a mutation away from being poisonous, and peanuts are highly allergenic. AFAIK, only one person has died from capsaicin, but he had a heart condition. That one will still definitely fuck your digestive system up though.