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iLUDEd
09-20-2002, 08:25 AM
1g fat = 9 cal
1g protein = 4 cal
1g carbs = 4 cal

is this right?

Just some girl
09-20-2002, 08:57 AM
yep

iLUDEd
09-20-2002, 09:02 AM
so that means ive been consuming 3100 calories when i though ive been only consuminf 2100.. :bang: :bang:

Just some girl
09-20-2002, 09:28 AM
how so?

2 RIP
09-20-2002, 09:37 AM
Originally posted by Just some girl
how so?

I think, when it shows how many calories, it showing the total of everything. Instead of calculating each thing by it self and coming up with a cal #

Just some girl
09-20-2002, 09:50 AM
sorry, 2 RIP, i have no idea what you mean. you mean the nutritional labels of foods? can you be more clear?

iLUDEd
09-20-2002, 11:02 AM
on the labels it only has kj's (under energy).. not cal's.. so i took a guess with the calories, but all the protein, carb, fat into was right..

Just some girl
09-20-2002, 11:13 AM
I am not sure, but i think you are confused. (I think I assumed you meant kilocalories before instead of calories) The Calories/gram for each type of nutrient that we are talking (fat, carb, protien) is a kilocalorie. So it is:

9 kcal/gram for fat
4 kcal/gram for carb
4 kcal/gram for protein.

you shouldnt have to convert between actual heat energy based calories (of which there are 1000 per Calorie, with a capitol C, equivalent to one kilocalorie). Make sense?

iLUDEd
09-20-2002, 11:18 AM
so just say an item has 10g of protein, 10f of carbs and 0g of fat.. it has 80 calories, or 80 kcal?

09-20-2002, 11:20 AM
Originally posted by SS-GOHAN
so just say an item has 10g of protein, 10f of carbs and 0g of fat.. it has 80 calories, or 80 kcal?

Theoretically, yes. But in real life you'll find that not to always be the case, since there's **** in foods that labels don't always tell you about.

iLUDEd
09-20-2002, 11:22 AM
hrrm.. well the lable on the food i get doesnt have a straight out calorie amount.. so most of the time i gota take a guess compared to how much carb, fat n protein is in it

Alex.V
09-20-2002, 11:23 AM
There may be more Calories listed than the macronutrients would indicated. That would mean there were hidden calories like glycerine, etc. in the food. However, total Calories will usually be correct.

One nutritional Calorie = 1 kilocalorie = 1000 calories. Capiche?

iLUDEd
09-20-2002, 11:28 AM
okay, cool thanks

Franjipani
09-21-2002, 06:13 AM
dont know if this helps iLUDEd but the when i'm filling in my diet stuff on www.fitday.com (http://www.fitday.com) I use the conversion of 4.186 kilojoules per calorie...

09-21-2002, 10:38 AM
Originally posted by iLUDEd
1g fat = 9 cal
1g protein = 4 cal
1g carbs = 4 cal

is this right?

Something i learned just recently is that protein actually has 5.65 kcals per gram.

At the same time, carbs have 4.2kcals per gram and fat has 9.45kcals per gram.

Of course, this is from heat combustion outside of the body.

From the efficiency of the digestive system, metabolism equates that protein and carbs yield 4kcals per gram, and fat yeilds 9kcals per gram.

I'm suspecting this is where the protein loses 30% of it's own calories via it's own digestion fact comes from.

i.e.

30% of 5.65 = 1.695

5.65 - 1.695 = 3.955

Round it up and you got 4.

On a side note, i've really overcooked this spagettii so it's kind of a pasta "mush", or something along those lines...