Live: Unsure where to start with exercise? Dr Karl and our expert panel are answering your burning questions

We put this query to Dr Karl a little bit earlier. This is what he mentioned.

Sure, within the sense, that whenever you lose some physique fats, the atoms that made up that fats (carbon, hydrogen and oxygen) go away the identical method that they entered your physique – through your mouth!

(That is proper, the atoms that make up the fats cannot vanish, or get became atomic power. Vaporising 10 kg of fats releases the equal of 10,000 Nagasaki atom bombs. In the event you misplaced that fats over some 100 days, you’d launch the power of 100 atom bombs per day – roughly one each quarter-hour. Your pals could not assist however discover that have been you dropping pounds …)

The chemical reactions that occur inside your physique, whenever you burn fats, are (taking a look at a “typical” triglyceride molecule of fats)

C55H104O6 +78O2 → 55 CO2 + 52 H2O + power

Suppose you wish to lose 10 kg of fats. Which means you are going to have so as to add 29 kg of oxygen – that is a variety of respiratory, and huffing and puffing. And to complete the method, you are going to eliminate some 28 kg of carbon dioxide and 11 kg of water. And the way are you going to eliminate this 39 kg of carbon dioxide and water?

Overwhelmingly, by respiratory it out.

You may lose a tiny quantity of this water as sweat or urine. However the overwhelming majority of these atoms that initially made up triglyceride molecules exited your mouth and nostril as carbon dioxide and water. Nevertheless, it’s important to do a variety of respiratory — every breath removes solely 33 mg of carbon dioxide.

Which means your main excretory organ is your pair of lungs. And your lungs ship it out through your nostril and mouth

However, are you able to unlock the carbon in your fats cells, and shed pounds, just by respiratory extra? Sort of …

The simplest solution to breathe extra usually is to train. So, eat much less and transfer extra.