Yes, radishes are generally safe for dogs to eat in moderation. Radishes are low in calories and high in fiber, vitamin C, and other essential vitamins and minerals, making them a healthy snack for dogs. However, it is important to feed radishes to dogs in moderation, as too many can cause digestive upset and other health problems. Additionally, it is important to note that some dogs may be allergic to radishes. Signs of an allergic reaction may include itching, swelling, difficulty breathing, and vomiting. If your dog shows any signs of an allergic reaction after eating radishes, it is best to discontinue feeding them to your dog and consult with a veterinarian. It is also important to avoid feeding your dog any radishes that have been seasoned with salt or other seasonings, as these can be harmful to dogs. Similarly, canned radishes or radishes in brine should be avoided due to their high sodium content. Always wash radishes thoroughly before feeding them to your dog to remove any dirt or pesticides.