Dogs can eat Greek yogurt, and it is generally safe and even beneficial for them if it is plain, unsweetened, and free of harmful additives like xylitol. Greek yogurt is often preferred because it contains less lactose and more protein compared to regular yogurt, making it easier for some dogs to digest. It is a good source of calcium, protein, and probiotics, which can support dogs' bone health, muscle repair, and digestive systems. However, some dogs are lactose intolerant and may experience digestive upset such as diarrhea, gas, or bloating when consuming Greek yogurt or other dairy products. Therefore, Greek yogurt should be introduced gradually in small amounts to monitor tolerance. Flavored yogurts or those with artificial sweeteners and added sugars should be avoided as they can be toxic or harmful to dogs. In summary, plain Greek yogurt in moderation can be a healthy treat for dogs without dairy allergies or lactose intolerance, with the key being to choose unsweetened, additive-free varieties and feed in controlled amounts.