Raspberries are generally safe for dogs to eat in moderation. They are a healthy treat option because they contain antioxidants, vitamins (such as vitamin C), fiber, and minerals that can benefit a dog's immune system, digestion, and overall health. However, raspberries contain a natural substance called xylitol, which is toxic to dogs in large amounts, so it is important to limit the quantity given. Too many raspberries can also cause digestive upset like diarrhea or an upset stomach. It is advised to give small amounts—such as one or two raspberries at a time for small dogs and up to five for larger dogs—and to avoid raspberry-flavored products or jams that may contain added xylitol or sugar. Always consult a vet before introducing raspberries or any new food into a dog's diet.