One cup of popped rice contains 56 calories consisting of 1 percent fat. The protein content in popped rice is 6 percent by volume, according to Fat Secret website. Popped rice contains no cholesterol or sodium. The carbohydrate content is equal to 12.57 g, which is 4 percent daily value based on a 2,000-calorie diet.
One cup of popped rice supplies many minerals, including 16 mg potassium, 4.4 mg iron, 14 mg phosphorus, 1 mg calcium and trace amounts of zinc, copper, manganese, fluoride and selenium. B vitamins found in puffed rice include thiamin, riboflavin, niacin, pantothenic acid, B-6 and folate, according to USDA National nutrition database.