Peanut shells are not considered safe or advisable to eat on purpose. The shells are largely indigestible and can pose risks if swallowed or consumed regularly, including potential blockages in the digestive tract and irritation to the gut. There may also be surface pesticides on the shells, since shells aren’t processed for consumption. If a peanut shell is accidentally ingested, it’s usually not dangerous in tiny amounts, but deliberately eating shells is not recommended.
