Dogs can eat plain, unsalted peanuts safely in small amounts. It is important to remove the peanut shells before giving them to dogs, as the shells can cause choking or digestive blockages. Peanuts that are dry-roasted or raw and without any seasoning or additives are the safest option. However, salted, flavored, honey-roasted, or seasoned peanuts should be avoided because they can upset a dog's digestive system or contain harmful ingredients. Dogs with a history of allergies or health conditions requiring low-fat diets should also be cautious, as peanuts are high in fat. Monitoring for any allergic reactions or digestive issues after feeding peanuts is advisable. Peanut butter made specifically for dogs or plain peanut butter without harmful additives can also be a safe treat in moderation.