when does the fat burning process actually happen?

Question

I was told that you break down muscle fibers with resistance training and build the muscles back when you sleep (provided you have enough protein). What about fat burning? Do you burn fat while you work out? Sleep? I understand you lose weight when there is a calorie deficit but when does it actually happen?

In: Biology

Answer 1

you call it burning but it is actually breathing, the burning of fat, carbs or protein happens when you put those fuels to use with oxygen and whichever metabolic process occurs turns that substrate into CO2 and water