There are many health benefits to adding edamame to your diet, like being a source of complete protein which is rare with food of a plant origin. Edamame is also high in fiber, low carb, and high in folate and Vitamins A, C, K, and iron. Because edamame is a source of phytoestrogens, women with certain types of breast cancer are advised not to eat it and other soy products. Ask your physician for the latest studies when it comes to soy and breast cancer.