File :-(, x, )
Anonymous
weird question here. When the body digests food how efficient is it in absorbing all the nutrients of it. i.e. if you ate 200 calories would your body completely absorb all 200 hundred or is there a small loss, such as you only get 197 or something, and the rest is lost in waste.
>> Anonymous
Calories are imaginary.
>> Anonymous
>>181152
wut
>> Anonymous
>>181154
A calorie is how much energy it takes to raise an ounce (Correct me if I'm wrong but I think it's an ounce) of water by 1 degree.
>> Anonymous
>>181158
I'm thinking 1ml water 1 degree C.

because metric sucks
??
>> Anonymous
not OP, but how many calories can you absorb a day? I mean does some food go undigested (which you shit out) if you eat a massive load?
>> midnight express !FzAyW.Rdbg
>>181147
its safe to say that all soluble food that enters the tummay (and mouth) is broken down into their respectable monomers and polymers WITHIN 10 MINUTES OF CONSUMPTION for those with purging tendencies. insoluble dietary fiber is an exception of course.
>> Anonymous
     File :-(, x)
How ever much you eat is what you body gets. Excess will be stored as fat. IE: Why we have so many fat fucks in America
>> Anonymous
>>181158
>>181169

In during wikipedia copypasta:

The energy needed to increase the temperature of a gram of water by 1 degree Celsius depends on the starting temperature and is difficult to measure precisely. Accordingly, there have been several definitions of the calorie:

* Thermochemical calorie (calth): 4.184 J exactly.[1]
* 15 °C calorie (cal15): the amount of energy required to warm 1 g of air-free water from 14.5 °C to 15.5 °C at a constant pressure of 101.325 kPa (1 atm). Experimental values of this calorie ranged from 4.1852 J to 4.1858 J. The CIPM in 1950 published a mean experimental value of 4.1855 J, noting an uncertainty of 0.0005 J.[1]
* 20 °C calorie: the amount of energy required to warm 1 g of air-free water from 19.5 °C to 20.5 °C at a constant pressure of 101.325 kPa (1 atm). This is about 4.182 J.
* 4 °C calorie: the amount of energy required to warm 1 g of air-free water from 3.5 °C to 4.5 °C at a constant pressure of 101.325 kPa (1 atm).
* Mean calorie: 1/100 of the amount of energy required to warm 1 g of air-free water from 0 °C to 100 °C at a constant pressure of 101.325 kPa (1 atm). This is about 4.190 J
* International Steam Table Calorie (1929): (1/860) W h = (180/43) J exactly. This is approximately 4.1868 J.
* International Steam Table Calorie (1956) (calIT): 1.163 mW h = 4.1868 J exactly. This definition was adopted by the Fifth International Conference on Properties of Steam (London, July 1956).[1]
* IUNS calorie: 4.182 J exactly. This is a ratio adopted by the Committee on Nomenclature of the International Union of Nutritional Sciences.[2]

The two perhaps most popular definitions used in older literature are the "15 °C calorie" and the "thermochemical calorie". Since the many different definitions are a source of confusion and error, all calories are now deprecated in favour of the SI unit for heat and energy: the joule (J).
>> midnight express !FzAyW.Rdbg
>>181274

arrogance, instant gratification, and laziness. asking stupid ass questions like op's versus going for a fucking 3 mile run and thinking about it.
>> Anonymous
>>181274

My friend told me not to eat more than 2 eggs, because beyond that point the protein is wasted and shitted out, wouldn't this hold steady for calories/other shit?
>> Anonymous
no system is 100% efficient. on top of that, no all of the food you eat is digestible (more on that later).

caloric content is usually calculated by oxidizing food (burning it; this is not 100% efficient either) and measuring the amount of heat released. this is different than what is actually released and stored through digestion

some foods have negative calories. for example: celery requires more energy to consume (chewing and digestion) than it contains in its digestible matter.
>> Anonymous
>>181147

Well, it absorbs "all" of the calories in the food. It has to fully process the food before it starts turning the waste of the food into feces. However, you burn a fair amount of calories digesting food, as this takes quite a bit of energy, so you could technically assume that if you ate 500 cals, you may burn off 100 or more that were already stored just by digesting and processing that food for X hours.
>> Anonymous
>>181288
>>181288continued
"We went to the supermarket and bought a bunch, cluster, mess, or whatever-you-call-it of celery packaged by A. Duda & Sons in Salinas, California. Having returned home and trimmed off the unpalatable parts, we weighed the remainder one stalk at a time on our Cuisinart precision portion scale – 757 grams total. Further research revealed that celery contains about 14 calories per 100 grams, so we were looking at 106 calories' worth of the vegetable.

We then commenced a rigorous regimen of celery consumption. This was tougher than you might think – you don't lay into a plateful of celery with the same enthusiasm you might have for an equivalent quantity of barbecued ribs. After an hour I'd eaten eight stalks. (I was interrupted a couple times, thankfully.) All things considered, I think I packed away as much of the stringy stuff as could reasonably be expected. Total consumption: 514 grams. Total calories ingested: 72.

There's no easy way to determine how much more energy you expend chewing and digesting celery than you would if you were just sitting there. However, it's fair to say that when eating celery, you're using more energy than you're taking in. Bear in mind that you burn roughly 60 calories per hour while asleep, 85 while eating, and – I think this is interesting – 130 while doing "computer work." (I was tapping away at the keyboard while munching my celery; obviously whoever figured these things out understands the intense concentration required to produce this column.) According to one calorie calculator I found, I need 78 calories per hour just to support my body weight. The unavoidable conclusion? If I did nothing but eat celery and write the Straight Dope all day, I'd waste away to a twig."
>> midnight express !FzAyW.Rdbg
there are are thresholds of nutrient absorbtion where once passed, the body emulsifies and converts what is not needed into fat. everybody has unique needs though, so do what feels right in terms of food. dont starve yourself with 2 eggs yeesh
>> midnight express !FzAyW.Rdbg
>>181288
you would have to account for every individuals metabolic functions. have fun tallying that up.