Here’s the short, authoritative answer: Only if you’re a goat, or a masochist. For humans, eating a few accidental shells is fine. Your stomach will process them like a very grumpy recycling plant. But intentionally crunching through a pile of shells? That’s like choosing to eat a pinecone—possible, but why would you? You have perfectly good peanuts inside the shell.
Unless you’re making boiled peanuts or experimenting with that wacky flour stuff, just stick to the nut. Your teeth will thank you, your colon will thank you, and you won’t have to explain to your friends why you’re carrying a bag of “peanut shell dust” in your pocket. Save the crunch for chips, not nature’s Styrofoam.
So, next time you’re at a bar and you pop a shell in your mouth, remember: you’re not a pioneer. You’re just a mammal with a gamble. But hey—if someone offers you a bag of boiled peanuts in Alabama, go ahead. Live a little. That’s what insurance is for.