Let's talk about metabolism. You've heard the word and you probably know the gist of what it is. Maybe you have that friend who eats copious amounts of whatever they want and they never seem to gain any weight. You ask how they do it. They say they've got a fast metabolism. But what does that really mean?
A person's metabolism is responsible for how their body converts kilojoules from food and drinks into energy that fuels our everyday activities. During this process, calories in food and drinks mix with oxygen to produce energy that the body utilises. Even when sedentary, your body needs energy to function. Your metabolism involves two carefully balanced processes that happen continuously: catabolism and anabolism. Catabolism is the process of breaking down food into simpler forms, releasing
