how much sodium for plain popcorn
Plain Air-Popped Popcorn Air-popped popcorn, on its own, doesn't contain many calories and is also low in fat and carbohydrates. A 3-cup serving of white, air-popped popcorn has 92 calories, 1 gram of fat and 1 milligram of sodium, according to the U.S. Department of Agriculture. The snack also has 2.9 grams of protein, 18.7 grams of carbs and 3.6 grams of dietary fiber.