Calories and fat in different kinds of popcorn

Question
Hello,  I'm wondering why there are conflicting reports on how many calories are in air popped popcorn?  I've seen where they say there is 31 calories in one cup and on the actual bag of popcorn they say there is 20 calories per cup.  If it really is 31 and someone thinks it's 20 those extra 11 calories can add up if they eat a lot.  Should I follow what the bag says?  Thanks,  Tracy

Answer
Hello,

It seems that it all depends on the way popcorn is popped.

One cup of ready (popped)  contains, depending on the preparation, the following amounts of calories and calories form fat.

Air-popped, buttered:
Calories 62.77
Calories from Fat 32.42

Popped in oil, lowfat:
Calories 31.16
Calories from Fat 6.5

Popped in oil, buttered:
Calories 72.95
Calories from Fat 41.89

Popped in oil, unbuttered:
Calories 55
Calories from Fat 27.82

Caramel-coated:
Calories 150.85
Calories from Fat 40.32

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