Fat Loss Success Series: Understanding Macronutrients

Your body requires energy and it can get that energy through food. Food is actually quite complex, however, to simplify things, we will talk in terms of macronutrients and micro nutrients.




I find it helpful to think of your body like a car.

Macronutrients are the fuel or energy. We measure this energy in calories or kilojoules.

Micronutrients are the engine parts that actually allow you to use the fuel.

In this video, we are talking about macronutrients.

There are 4 macronutrients:

  1. Carbs

  2. Protein

  3. Fats

  4. Alcohol

They all provide different amounts of energy to the body and the body uses them for different functions. That is why it is important that you are consuming a balance of all of them (maybe with the exception of alcohol - we don’t actually need alcohol to thrive!).

Let’s go through them - I like to use a fire analogy to describe how your body likes to use these for energy.

So, think of your body like a fire, our macros are the different fuels that we might use to fuel the fire.


Carbs are like paper - they catch really fast, light high but run out pretty quickly. Carbs are perfect when you need to fuel and recover from a training session. They are the only energy source used by your brain and for us women, are really essential for managing our hormone levels and protecting our bone mass.


Protein is like logs on the fire - it burns steady and lasts longer than carbs. When you consume a meal containing protein, you’re likely to feel fuller for longer. That’s because protein takes longer to digest than carbs. However, although protein can be used as an energy source, it’s not your body’s go-to. Your body prefers to use its proteins to build structures within the body.

Protein a key component of muscle, bone, skin and hair. When we think of muscles, it’s not just about those biceps in the gym, it's also about your heart and your digestive tract. Consuming enough protein across a day is really important for more than just building muscle.


Fats are like coals on the fire - as an energy source, the burn low and slow. Your body can’t use fats very well for high intensity activities but prefers to use fats when you are sitting around or doing light activity.

Fats contain the most energy per gram. This means that by consuming only a small amount of fats, you can supply your body with enough energy to last a long time. Fats also form the outer layer of every cell in your body, they are essential for your hormones and your nerves are wrapped in a layer of fats that is required for nervous communication. That is why I don’t ever recommend going on a diet that severely restricts fats.

I hope that gives you a general overview of how our macronutrients are used in our body. Each of them is required for our bodies to function and lose weight successfully.



We'd like to kindly thank Hannah from All Bodies Services for the content of this blog. We are grateful to have an incredible partnership with Hannah & her team of expert Nutritionist's and Dietitian's to guide our members on their journey with food.