PDA

View Full Version : How do they figure out how much fat/ carbs/ protein are in foods?



yankeekd25
10-18-2007, 12:26 PM
This is a question I have always wondered. How they come up with macros in food? How does one actually know that there is 14 g of fat in 1 oz of peanuts? I'm assuming is has something to do with the chemistry of the food?

mikey4402
10-18-2007, 12:54 PM
there are test that can be done.

For instance a calorie is the amount of heat energy needed to increse 1 g of water by 1 degree Celsius.

RedSpikeyThing
10-18-2007, 01:38 PM
there are test that can be done.

For instance a calorie is the amount of heat energy needed to increse 1 g of water by 1 degree Celsius.

yeah that's how they get calories - burn it and see how much the water heats up. Good question about the macros, though. I'm wanna know now!

yankeekd25
10-18-2007, 01:49 PM
yeah that's how they get calories - burn it and see how much the water heats up. Good question about the macros, though. I'm wanna know now!

Yeah, I knew about the calories. I learned that in chemistry class last year haha.