Like, I get comments from people telling me it’s weird I always try to peel potatoes like I am trying to make the worlds longest 1-piece potato peel. To me it feels way for efficient and fun to continu down a potato in 1 peel, while circling around it, instead of randomly scraping a hundred different pieces of peel off and having to reintroduce the cutter knife to the potato for every piece.
You should NOT do this with Potatoes. Their skin contains Solanine, which is a nightshade toxin.
Other veggies and fruits yes, but not potatoes. Other nightshades like Tomatoes and Pepper are way different.
Fresh or properly stored non “green” potatoes should be safe to eat with the skin, as the solanine content is usually below the threshold of 100mg per kg, as I understand it according to this Source. What I found interesting is that the Solanine apparently accumulates in frying oil (it starts breaking down at about 170°C according to Wikipedia) which might be troublesome since some places swap frying oil infrequently.
