Dogs can eat Brussels sprouts, but only in controlled and moderate amounts. They are safe and can provide nutritional benefits such as vitamins K and C, fiber, antioxidants, and minerals. However, Brussels sprouts should be cooked (steamed or boiled) rather than raw, as cooking makes them easier to digest for dogs. It is important to remove the tough stalks and only feed the leafy parts in small, bite-sized pieces to avoid choking risks. Overfeeding Brussels sprouts can cause digestive issues like gas, flatulence, and stomach upset, so they should be introduced gradually and given in moderation as a treat rather than a main food source.