Adzuki beans are usually used dried. Adzuki beans are a relatively sweet red bean which can be used green in the pod, dried or in sprouted form.Dried beans, like adzuki beans, may lower your risk for cancer, diabetes and heart disease. They are a low-fat protein source that is rich in vitamins and minerals. 1-cup serving of cooked dried adzuki beans contains 294 calories, 17 grams of protein and 57 grams of carbohydrates, including 17 grams of fiber. These beans only contain trace amounts of fat.