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Irregular, airy popcorn pieces with creamy white lobes, pale golden centers, and a few small brown hulls fill a bowl.
⚡High Potassium
🌿High Fiber

Popcorn Calories

Whole-grain, fiber-containing snack

CALORIES · 100 G

387kcal

GI

55medium

POTASSIUM · 100 G

329mg

FIBER · 100 G

14.5g

Quick answer

1 cup (medium) of Popcorn (8 g) has 31 calories. That works out to 387 calories per 100 g. It contains 6.2 g of carbs, 1 g of protein, 0.4 g of fat and 1.2 g of fiber. Its glycemic index is 55 (medium), so it raises blood sugar at a moderate pace.

Popcorn Nutrition Facts

Selected: 1 cup (medium) · 8 g

31

KCAL / 8G

Carbs

6.2g

· 2% DV

Protein

1g

· 2% DV

Fat

0.4g

· 1% DV

Fiber

1.2g

· 4% DV

DV is the share of the daily value covered, on a 2,000 kcal reference diet.

Calories come from: Carbs 77% · Protein 12% · Fat 11%

Popcorn nutrition facts table · 1 cup (medium) (8 g)

NutrientAmount% DV
Calories31 kcal
Total fat0.4 g1%
Saturated fat0.05 g0%
Trans fat0 g
Sodium0.64 mg0%
Total carbohydrate6.2 g2%
Fiber1.2 g4%
Protein1 g2%

Calories: Calories measure energy. Average daily need is 2,000 kcal. Excess calories are stored as fat, too few cause weight loss.

Carbs: Your body's primary energy source. The brain runs exclusively on carbs. Daily need: 275g.

Protein: Essential for muscle repair and cell growth. Daily need: 50g. Keeps you full and boosts metabolism.

Fat: Needed for hormone production and vitamin absorption. Daily need: 78g. Limit saturated fats, choose unsaturated.

Fiber: Critical for digestive health and satiety. Daily need: 28g. Stabilizes blood sugar, lowers cholesterol.

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How Many Calories in 1 Cup of Popcorn?

ServingAmountCalories
1 cup (medium)8 g31 kcal
1 piece (mini)3 g12 kcal
2 cup (double)16 g62 kcal
1 serving (small)24 g93 kcal
4 cup (large)32 g124 kcal
1 serving (medium)40 g155 kcal
6 cup (extra large)48 g186 kcal
1 serving (large)60 g232 kcal
1 pack (whole)90 g348 kcal
100 g100 g387 kcal

Calculated from 387 calories per 100 g.

Frequently Asked Questions About Popcorn

How do you make popcorn on the stove?

To make popcorn on the stove, heat a little oil in a heavy pot, add popping corn in a single layer, and cover it. Shake the pot occasionally; take it off the heat when the popping slows to avoid scorching the remaining kernels.

Why are my popcorn kernels not popping?

Popcorn kernels need enough moisture inside their sealed hulls to build pressure and burst. Old or damaged kernels may have lost that moisture, and ordinary sweet corn will not pop like popping corn. Store kernels airtight to help them retain moisture.

Can you microwave popcorn kernels without a bag?

Yes, you can microwave popcorn kernels in a microwave-safe covered bowl or a purpose-made popper. Never use metal, and stop the microwave when the pops become occasional; leaving it running can burn the popcorn.

How do you keep popcorn crispy?

Let popcorn cool before storing it in an airtight container in a cool, dry place. Steam trapped under a lid can make it soggy, so avoid sealing it while hot. Refrigeration is unnecessary and may expose it to moisture.

Is popcorn a healthy snack?

Plain popcorn can be a wholesome snack because it is a whole grain and provides fiber. Heavy butter, sugary coatings, and generous salt change its nutritional profile, so choose simple toppings when you want a lighter bowl.

Can dogs eat popcorn?

Dogs can have a small amount of plain, fully popped popcorn as an occasional treat, but avoid butter, salt, caramel, and seasoning. Remove unpopped kernels, which can be hard on teeth or pose a choking risk.

Can you eat unpopped popcorn kernels?

It is best not to eat unpopped popcorn kernels. They are very hard and can damage teeth or become a choking hazard; check the bowl as you eat and leave the hard kernels behind.

Does popcorn go bad?

Yes, popped popcorn can lose its crispness and kernels can eventually become too dry to pop well. Keep both in airtight containers in a cool, dry cupboard, and discard popped popcorn if it develops an unusual smell or visible mold.

How do you season popcorn so the seasoning sticks?

Season popcorn while it is still warm, when a light coating of oil or melted butter can help spices adhere. For an oil-free bowl, use finely ground seasonings and toss thoroughly; coarse toppings tend to fall to the bottom.

Is air-popped popcorn better than movie-theater popcorn?

Air-popped popcorn is usually easier to keep light because it needs no added oil during popping. Movie-theater versions often include added fat and salt, so making it at home gives you more control over the toppings.

Popcorn Vitamins & Minerals

Vitamins

Biotin

0.4µg · 1% DV

B3

0.18mg · 1% DV

B2

0.01mg · 1% DV

B6

0.01mg · 1% DV

Minerals

Phosphorus

29mg · 4% DV

Manganese

0.09mg · 4% DV

Magnesium

12mg · 3% DV

Zinc

0.25mg · 2% DV

Potassium ⭐

26mg · 1% DV

Sodium

0.64mg · 0% DV

Popcorn Glycemic Index

GLYCEMIC INDEX

55
Medium
0 Low5570100

GLYCEMIC LOAD

0.9
Low

Accounts for portion size — a more realistic measure than GI alone.

How to Burn Off Popcorn

To burn the 31 calories in 1 cup (medium) (8 g):

🚶

8min

Walking (5 km/h)

🏃

3min

Running (8 km/h)

🚴

4min

Cycling

🏊

4min

Swimming

Times are calculated with the MET equation for a 70 kg adult. Actual burn varies with your weight, age and pace.

What is Popcorn?

Popcorn is made by heating kernels of a variety of corn until they burst into light, crisp pieces. It has roots in the Americas and is now a familiar snack around the world, especially at cinemas and at home. People enjoy it plain or with salt, butter, spices, or sweet coatings, depending on local tastes.

As a whole-grain snack, Popcorn provides fibre: 100 g contains 14.5 g, though a medium cup is about 8 g. For a lighter bowl, use modest amounts of oil and salt, or season it with herbs or spices instead.

How Nutritious Is Popcorn?

Nutrient density

Medium

54/ 100

How many vitamins, minerals and how much fiber this food carries per calorie. A high score means a lot of nutrition for few calories.

Satiety score

Medium

51/ 100

An EatBetter score computed from fiber, protein and calorie density. A high score means staying full longer on the same calories.

Both scores are calculated per 100 g and do not change with the selected portion. The satiety score is EatBetter's own calculation, not a clinical measure.

Is Popcorn Processed?

NOVA 2

Minimally Processed

1. Unprocessed

2. Minimally Processed

3. Processed

4. Ultra-Processed

NOVA classifies foods into 4 groups by industrial processing. NOVA 1 (unprocessed) is the healthiest.

Does Popcorn Contain Allergens?

No known major allergens

Gluten free
Dairy free
Eggs free
Peanuts free
Tree nuts free
Fish free
Soy free
Sesame free

Which Diets Is Popcorn Good For?

Vegan

✓ Suitable

Vegetarian

✓ Suitable

Gluten-Free

✓ Suitable

Dairy-Free

— Not suitable

Mediterranean

✓ Suitable

Paleo

— Not suitable

Whole30

— Not suitable

DASH

— Not suitable

Keto

— Not suitable

Low FODMAP

— Not suitable

Popcorn Fat Profile

SATURATED

0.05g

MONOUNSATURATED

0.09g

POLYUNSATURATED

0.17g

Compare Popcorn

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Bulgur Pilaf

120 kcal

🍝

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124 kcal

🥖

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410 kcal

🥯

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340 kcal

🥣

Granola

450 kcal

🍚

Rice Pilaf

150 kcal

🍚

Basmati Rice Pilaf

140 kcal

🍝

Pasta (Boiled)

155 kcal

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Nutrition data compiled from USDA FoodData Central and scientific sources.