calories by cup of popcorn?

Voxen Posts: 33

February 2013 in Food and Nutrition

Why does home made air popped popcorn have like 31 calories a cup, and yet something like Redenbacher's 94% fatfree has online 15 cals a cup? what gives?

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  Voxen Posts: 33

  February 2013

  Anyone have any ideas?

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  Voxen Posts: 33

  February 2013

  no one?

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