Nowadays, due to an emphasis placed on the
importance of staying healthy, more and more people are focused on
burning calories and getting lean. But have you ever stopped to think
about how fat actually disappears from your body?
Where Does Fat Go?
As part of a study on this particular topic, scientists from the
University of New South Wales posed a very simple question to health
professionals: when somebody loses weight, where does the fat go? Of the
150 dietitians, doctors, and personal trainers that the surveyed, they
said that only three respondents answered the question correctly.
Writing for “The Conversation,” assistant
scientists Ruben Meerman and Andrew Brown, professor and head of
biotechnology and biomolecular sciences at UNSW, explained the results
of the research – and just like the health professionals who were
questioned, you might be surprised at what they found.
They wrote: “the most common misconception by far was that fat is
converted to energy. The problem with this theory is that it violates
the law of conservation of matter, which all chemical reactions obey.”
Other respondents believed that fat was converted into muscle, which,
they explained “is impossible.” Another theory was that it leaves the
body through the colon, which was also proven to be incorrect.
So what’s the answer then?
“Fat is converted to carbon dioxide and water. You exhale the carbon
dioxide and the water mixes into your circulation until it’s lost in
urine or sweat. If you lose 10 kg (22 lbs) of fat, precisely 8.4 kg
(18.5 lbs) comes out through your lungs and the remaining 1.6 kg (3.5
lbs) turns into water. In other words, nearly all the weight we lose is
exhaled.”
While this might surprise people, almost everything that we eat comes
back out via the lungs. For example, all the carbohydrates you digest
and nearly all the fats are converted to water and carbon dioxide. The
same goes for protein and alcohol, apart from a small amount of the
former that is turned into urea and other solids, and excreted as urine.
The scientists pointed out that the only food that makes it to your
colon undigested is dietary fiber, such as sweetcorn. The rest is
absorbed into the bloodstream and organs.
This is only for your information, kindly take the advice of your doctor for medicines, exercises and so on.
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Labels: body fat- converted to CO2 and H2O, exhale through lungs, sweat / urine excreted. undigested dietary fiber comes out from colon, weight loss
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