Black Soy Beans: What are they?:
Black soy beans are merely a variety of soy bean. Nutritionally, they are very similar to regular yellow soy beans, though they are higher and some phytonutrients, including antioxidants. They are low in net carbohydrates, and high in fiber, protein, vitamin K, iron, magnesium, copper, manganese, and riboflavin.
What are they good for?:
Black soy beans are great substitutes for higher-carb beans. They don't taste "soybean-y" as the yellow ones do, but more like regular black beans. They are great in baked beans, refried beans, bean soup, chili, 4-Bean Salad, and almost anywhere else you'd use beans.
Where can I find them?:
Most health food stores carry canned organic black soy beans by Eden Foods. The Eden brand is organic, non-GMO, and comes in BPA-free cans. Dry black soy beans are harder to find, but some stores carry them.