Fox nuts, commonly known as makhana or gorgon nuts, are the popped seeds of the prickly water lily (Euryale ferox). They are a highly nutritious, low-calorie superfood—not actual nuts—that taste similar to popcorn and are largely cultivated in Bihar, India. They are a popular healthy snack, known for being gluten-free, rich in protein and fiber, and used in both savory and sweet dishes.