Thats interesting and you’re right no one ever mentions it and me might be missing a trick, but i looked into it and there is a chemical element in pumpkin seeds that helps detach parasites from the gut wall. garlic has it to but i doubt hedgehogs would eat garlic. I took the plunge and tried it without knowing even if my hogs had worms but i think most would have at least some. The hogs do like ground pumpkin seeds so i’m with you a little in moderation must help. I didn’t know that green poo was a sign so i will keep an eye for that.
I do occasionally have slugs on the hedgehog food and like you say better that than eating your plants.
I’m now off to look for green poo ))