Lets to speak a human being is top top a diet. Castle eat 1500 calorie a day. Just how much gets ‘left behind’ and does the vary?
Yeah, i know about corn and peanuts and also olestra and also that the could change depending top top the varieties of food. But does the body’s capacity (desire?) come extract all the potential energy out that the food stay consistent?
And what IS the efficiency? many moons ago, we had a girlfriend who’s campsite had actually a propane it is provided outhouse. (Woe come the human being who used the facilities prior to it completely cooled off) but that’s successfully what happens as soon as you do a calorie test: You set something top top fire and also see exactly how much energy it gives off. For this reason there’s probably SOME energy left, yet how much?
Philster in march 26, 2010, 11:41am #2
Too many variables, but here is one:
Processed food and cooked foodstuffs are much more likely come be soaked up completely.
You are watching: How many calories does poop have
Raw foods not so much.
If a lab test reflects a cup of bean to have 160 calories, it could wind up being an ext like 100 as soon as the body processes it.
If a lab test reveals a deserve to of cola to have 180 calories, that will more than likely wind up gift 180 calories (or cursed close come it) as soon as the body procedures it.
Gastrointestinal issues can minimize absorption, too. Hefty caffeine intake, overindulgence and other variables (stress) can reason the body to propel food front at a rate that walk not enable maximum absorption.
I review nice article around guys that studies person waste to recognize some of the points I pointed out above, however can’t find the article. They also happened to substantiate the point around calcium (not calcium in supplement form) reduce fat absorption. So, change some calories through calcium-rich foods and an ext fat will end up in the stool – unabsorbed.
Unintentionally_Blank march 26, 2010, 12:21pm #3
I ask together it seemed like, when dieting, I ongoing to shed weight, even on days i was “bad”. Ns didn’t fall off the wagon, the was simply a day wherein I had something deep fried, or some ice cream, or i tied one on. The weight preserved going down also though ns had an ext that sufficient calories to send that in the various other direction, if you assume the body constantly extracts a details percentage.
Telemark march 26, 2010, 2:48pm #4
IIRC, the byproduct of burn fat is greatly water, which goes out v your breath first, and in your piss. Your lungs remove an ext weight from your body than any other source. Her poop is mostly fiber and dead bacteria, again, IIRC.
KarlGauss in march 26, 2010, 3:47pm #5
Malabsorbtion is identified (in part) if there’s an ext than 5 gm/d that fat in the stool. The is identical to 45 kcal the energy. In other words, her gut is an extremely efficient (when healthy) and tiny nutrition is wasted.
KarlGauss march 26, 2010, 3:52pm #6
I should likewise note that research studies done years ago showed that even when human being deliberately abuse laxatives in an effort to lose weight (by decreasing time obtainable for nutrient to be absorbed by the gut), there is little effect on caloric absorption.
Broomstick march 26, 2010, 3:58pm #7
Many moons ago, we had a girlfriend who’s campsite had actually a propane it is provided outhouse.
This was my first thought.
Then i thought, i will not ~ methane be more efficient/green, enabling you to make use of the outgassings the the contents?
Then i realized this object wasn’t around that in ~ all.
(Really, back the object is amazing there room some misleading breadcumbs about here!)
Una_Persson march 27, 2010, 1:39pm #8
The power content the animal and also human waste has been covered prior to - the moisture contents is the key variable. Entirely dry it varieties from 4,000 come 7,000 Btu/lbm.
Ruken in march 27, 2010, 1:51pm #9
The power content of animal and also human waste has been covered before - the moisture contents is the vital variable. Completely dry it ranges from 4,000 to 7,000 Btu/lbm.
How is the moisture contents going to adjust the energy content? Wet fuel won’t relax as much heat when burned because of the high warm capacity and also heat the vaporization of water, yet isn’t the net power released the same both wet and dry?
That provides me wonder around how the calorie content is measured because that food. If they’re simply burning the food in a calorimeter, will certainly high-moisture foods give artificially low results?
Una_Persson march 27, 2010, 2:20pm #10
How is the moisture contents going to readjust the power content? Wet fuel won’t relax as much warm when burned due to the fact that of the high warm capacity and also heat of vaporization the water, however isn’t the net energy released the very same both wet and also dry?
That provides me wonder about how the calorie content is measured for food. If they’re just burning the food in a calorimeter, will certainly high-moisture foods give artificially low results?
It transforms the energy on a massive basis. Simply as we don’t eat entirely dry food many of the time, we need too keep things ~ above a continual or moisture-corrected basis. The all really well come say “this food has X kCal/kg and poo has Y kCal/kg”, however the point is uneven you exactly both come the exact same moisture content, or look in ~ them ~ above a dry basis, you’re no doing a fair comparison. In short, you and also I room talking about closely related but different methods of looking in ~ the energy content.
Ruken march 27, 2010, 5:35pm #11
It transforms the energy on a fixed basis. Just as us don’t eat totally dry food most of the time, we need too keep things ~ above a consistent or moisture-corrected basis. That all very well come say “this food has X kCal/kg and also poo has Y kCal/kg”, however the suggest is uneven you correct both to the exact same moisture content, or look in ~ them on a dried basis, you’re no doing a fair comparison. In short, you and also I space talking about closely related but different methods of looking in ~ the power content.
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Oh right. Ns was thinking much more in regards to net energy in and out. Ns wonder what the day-to-day dry calculation of a human being is. The number in the connect is because that dry sewage sludge. I’m assuming that’s something choose 98+% human being waste, yet does anyone recognize for sure?
foolscap march 29, 2010, 7:54am #12
When I very first read your short article I believed abouthow in survive manuals castle suggestcooking moose and rabbit droppings in a stew.
Rabbits and also Moose perform something dubbed external digestion.the digestive monitor in these pets is really short (for a herbivore)and the dung is left to ferment (increasing its food value)and the animal will come earlier later because that the second half of the meal:smack: