Calorie Calculation Question

Discussion in 'Fitness & Nutrition' started by HopHead, Mar 10, 2009.

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  1. HopHead

    HopHead OT Supporter

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    If there are 9 calories in 1 gram of fat, 4 in 1 gram of carbs, and 4 in 1 gram of protein, you should theoretically be able to calculate the calories in a food item by knowing the fat/carbs/protein numbers. Why doesn't this work? For example, they're ordering from Pat & Oscar's tonight at work and I was looking at the nutrition facts for 1 breadstick. They're so fucking good, but I just can't do it. My point is, the numbers don't equal the calories:

    http://www.dietfacts.com/html/nutrition-facts/pat-and-oscars-breadsticks-hand-rolled-and-baked-fresh-throughout-the-day-42157.htm

    240 calories
    6 grams of fat
    39 grams of carbs
    6 grams of protein

    If you calculate the calories using the grams of fat/carbs/and protein, you'll come up with:

    54 calories from fat
    156 calories from carbs
    24 calories from protein
    = 234 calories

    I realize the difference is small, but it exists nonetheless, and I noticed this on many food items. My question is: why?


     
  2. 03zq8

    03zq8 Rhodium Member

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    I'm sure the 9, 4, and 4 numebrs aren't exact either. Rounding's a bitch.
     
  3. CrackityJones

    CrackityJones OT Supporter

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    yep, rounding. it's legal to list anything under .55 as 0 for example.
     
  4. Biskit

    Biskit Active Member

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    *correct me if I am wrong but the following was passed down to me from a friend

    Yeah and with some things like chips for example you're allowed to list a small quantity that will have ~.5 so it can be listed at 0.

    For example Trans Fats
    Serving = 6 Chips
    Lets assume 6 chips have .5g of trans fats then they are allowed to list it at 0. HOWEVER who only eats 6 chips?

    Its just like marketing.

    For example 79.99 is much more appealing than 80.00


    Just ways of companies manipulating you in order to get you to buy their products/feel better about yourself.

    Think of a number between 5 and 12







    Were you thinking of 7?
    The majority of people do.
     
  5. synthetic

    synthetic New Member

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    Also not all fats are 9 cal, some are 10, and some are just 6 (MCT medium chained fats, such as safflower and coconut)

    Some sugars such as sugar alcohols come in at 3 cal, while high frutcose corn syrups can hit 5 cal
     
  6. HopHead

    HopHead OT Supporter

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    Thanks for the info guys.
     
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