All of the nightshade family can be problematic for some people (not all obviously). My wife loves green peppers but has them not very often any more because she can feel it in her joints after eating them. She will still use a little tomato paste in a few things but it also gives her problems so uses it only sparingly any more.

And in our earlier years of marriage tomatoes, peppers and all the rest of the nightshade family were eaten regularly. But what seemed to not bother us 30 years ago is another story today. I don't seem to have a problem with them but she does. It is not a debilitating problem for her, but her joints slightly ache and she does not feel as good as when she avoids them.

John