Winged beans (Psophocarpus tetragonolobus), also known as Goa beans or four-angled beans, are a tropical legume native to Southeast Asia and one of the most versatile yet overlooked vegetables in the world. Recognizable by their frilled, wing-like edges, these beans are unique because nearly every part of the plant is edible — including the pods, leaves, flowers, seeds, and even the tuberous roots. Beyond their unusual appearance, winged beans are highly nutritious, making them an excellent addition to many diets, especially in regions seeking affordable and sustainable plant-based food sources.

Nutritionally, winged beans are rich in protein, fiber, vitamins, and minerals. Their protein supports muscle growth and tissue repair, while calcium and phosphorus strengthen bones and teeth. Fiber aids digestion and helps maintain healthy cholesterol and blood sugar levels, and vitamins A and C boost immune function while protecting the body from oxidative stress. Iron and folate support healthy red blood cell production, helping prevent anemia. Winged beans are especially beneficial for vegetarians, vegans, pregnant women, and growing children. However, they should always be cooked before eating, as raw or undercooked beans can cause digestive discomfort. People prone to kidney stones may also need to eat them in moderation due to natural oxalate content. Winged beans can be stir-fried, steamed, added to soups and curries, or used in salads, offering a flavorful and nutritious way to diversify everyday meals.