Dogs can eat plain, shelled edamame in small amounts as an occasional treat. Edamame is non-toxic for most dogs and contains nutrients such as protein, fiber, omega-3 fatty acids, calcium, and vitamin C, which can be beneficial. However, edamame should be offered without the pod, as the pod can pose a choking hazard or cause digestive issues. It is important to avoid any added seasonings like salt or soy sauce, as these can be harmful to dogs. Dogs with soy allergies should not be given edamame. Overfeeding edamame can cause stomach upset, including gas, diarrhea, or constipation, so moderation is key. Generally, treats like edamame should not exceed 10% of a dog's daily caloric intake, and it is best to consult a veterinarian before introducing it to a dog's diet.