I believe that protein & carbs is 4 calories / gram (28g/ounce X 4 = 112 calories/ounce). I believe that fat is 9 calories / gram (28g/ounce X 9 = 252 calories/ounce).
I purchased 10 ounces of bacon & eggs & some tator-tots at the Whole Foods breakfast bar.
I'm trying to estimate the minimum possible calories it contained.
If it was all protein & carbs, would it be 10oz * 28 g/ounce * 4 = 1120 calories? Does moisture content factor into this at all?
BTW, if it was all fat, would it be 10oz * 28 g/ounce * 9 = 2520 calories?
(I have the impression that fat doesn't really contain any water/moisture so maybe that's an accurate number for the total calories from fat).
I feel like I might be missing something in my analysis so please help me clarify my thinking.
PS: of the 10 ounce breakfast, I'm guessing that 1 ounce was bacon, 3 ounces was potato tots, and 6 ounces was cheese eggs
asked byCaveMan_Mike (3275)
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on October 18, 2012
at 01:26 PM
Water has no calories and food is mostly water, so yes, you have to take into account water content.
If you want to count calories, use a calorie counting website like: cronometer.com, paleotrack.com, loseit.com, etc...
on October 19, 2012
at 12:42 AM
Most food will contain water and some will contain ash, both these items show up on databases like cronometer.com, nutritiondata.com & the usda database & will add to the food weight (but zero calories).
& some ballpark calorie numbers are (per 1 gram);
Ethanol (drinking alcohol); 7 cals
Organic acids; 3 cals
Polyols (sugar alcohols, sweeteners); 2.4 cals
Fiber; 2 cals
& the ones you already mentioned;
Fat; 9 cals
Proteins; 4 cals
Carbohydrates; 4 cals
on October 18, 2012
at 03:56 PM
ok. I just entered the following into cronometer:
5oz scrambled eggs,
3oz french fries,
1oz cheddar cheese,
It calculated it as 818 calories, 37g carbs, 42g protein, 56g fat.
So, it averaged out as 81 calories per ounce, not 112-252 calories / ounce.