Verdict: Yes, safe
Raspberries are generally safe for dogs in moderation and can be a healthy treat. They are low in calories and sugar, and rich in antioxidants, fiber, and vitamins. However, they do contain small amounts of naturally occurring xylitol, so excessive consumption should be avoided.
Xylitol can cause a rapid release of insulin, leading to hypoglycemia (low blood sugar), and in higher doses, liver failure. However, the amount in raspberries is typically too low to cause issues.
Xylitol (in very small amounts)