There are many adherents to the Calories In/ Calories Out (CICO) theory that constantly bleat about “It all comes down to the First Law of Thermodynamics”. The First Law of Thermodynamics refers to a law of physics where energy cannot be created or destroyed in a closed system and is ALWAYS true.
However, in the complex world of human physiology, it is true but completely irrelevant. What the CICO people think it means is that if you reduce calories in, you will lose weight. Of course, it means nothing of the sort.
So, let’s see why. Continue Reading →