Popcorn or popping corn is corn(maize)which expands fromthe kernal and puffs up when it heated corn is able to pop beacuse ,unlike other grain ,its kernels have a hard moisture sealed hull and a dense starchy filling.Nutritional valu per 100 gm ,energy 1598 kg,carbohydrates78 gm,deitary fiber 15 gm,fat 4g ,protien 12g ,iron 2.7g