Thank you for this information. I was diagnosed as Nighshade intolerant 3 years ago, but did not react to either banana peppers or potatoes at that time. I was growing banana pepers and enjoying them every day this year when I began to notice a reaction and it was verified. I then ate a baked potato a couple of weeks ago that had turned green under the skin. Even though I pealed it, apparently enough of the green concentrated whatever it is that we react to and now I have a milder, but noticeable reaction to potatoes that was just verified this morning. I'm cutting out all potatoes from my diet and it will be interesting to see what results. I also have very dry skin with cracking problems around the cuticles on my fingers, especially during the winter. It would be very nice if eliminating potatoes eliminated that painful problem!