Food Guide

Popcorn

Buying Tips

Popcorn may be purchased as bags of raw kernels, in cans, in microwave-ready packages, stove-top pans, or in bulk. Ears of popcorn, the kernels of which pop right on the cob, are also available but are harder to find.

Varieties

Popcorn is available in two main varieties: yellow and white. It can be purchased buttered or unbuttered, or topped with cheese, caramel, or other flavorings. However, plain popcorn is the most healthful choice.

Preparation, Uses, & Tips

Toss popcorn with low-sodium seasonings; try sesame seeds, ground kelp, or a combination of garlic powder, oregano, and Parmesan cheese.

Storing

Store popcorn, unopened, in a cool, dark cupboard for up to three months. For longer storage, refrigerate or freeze popcorn kernels for up to a year to preserve their natural moisture and allow them to produce larger popped kernels. Popcorn packaged with oil in its own “pan” should be stored no longer than about three months at room temperature. Popcorn is best when eaten soon after it is popped, but ready-to-eat or opened popcorn can be stored in a tightly sealed glass jar for up to two weeks.

Nutrition Highlights

Popcorn (air-popped, plain), 1 cup (9g)

  • Calories: 31
  • Protein: 0.96g
  • Carbohydrate: 6.2g
  • Total Fat: 0.33g
  • Fiber: 1.21g

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The information presented in the Food Guide is for informational purposes only and was created by a team of US–registered dietitians and food experts. Consult your doctor, practitioner, and/or pharmacist for any health problem and before using any supplements, making dietary changes, or before making any changes in prescribed medications. Information expires December 2025.