Eric asks Dr. Azza if dogs can eat barley, and the answer is yes. Dr. Azza explains that barley is a digestible grain providing selenium, B vitamins and soluble fiber to support thyroid, immune, digestive and heart health. She recommends choosing an easier-to-digest option like pearl barley, cooking it fully and serving it plain without spices, fats or other additives. As always, barley should be offered in moderation.