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Weight-Loss & Wellness Articles

What happens to fat when you lose weight?

A SOZA nutritionist passionately explaining the process of fat loss to an attentive overweight patient, highlighting the science of metabolism and the journey towards better health.

One question that often arises when embarking on a weight loss journey with SOZA Weight Loss is: "Where does the fat loss go?"

So, what happens to fat when you lose weight?

You do NOT poop it out! When you lose weight, your body turns fat into energy. Whatever your body doesn't use up as energy gets breathed out or leaves your body as sweat and pee. So basically, you breathe out and sweat the fat you lose!

Read on if you want to know more.

While it may seem straightforward, the answer takes us on an exciting trip through how our bodies break down food and use it. By understanding this process, we can see how amazing our bodies are at keeping us healthy and balanced.

The Basics of Fat Metabolism

When you eat more than your body needs, it saves the extra energy as fat. If you start eating less, your body breaks down this stored fat to get the energy it needs.

The fat is broken down into two parts: glycerol and fatty acids. The fatty acids go to our cells' power centers, called mitochondria. Here, they're broken down further and used to create energy that our cells can use.

The glycerol part is sent to the liver, where it can be turned into sugar for even more energy. So, when you eat less, your body uses stored fat and turns it into energy.

Breathing Out Fat

Here's where things get pretty cool. When your body breaks down fat, it creates:

  • water,

  • carbon dioxide (CO2), and

  • energy.

CO2 is garbage for our bodies, and we need to eliminate it. But how does it leave?

You might not expect it, but we breathe it out!

The CO2 gets carried to our lungs by our bloodstream, and we exhale it. A study says that about 84% of the fat we lose leaves our bodies this way.

Sweating and Hydration

Water is another thing your body makes when it breaks down fat. Some of this water is used in the body, but any additional needs to leave. We eliminate this extra water when we sweat, pee, and breathe. That's why drinking plenty of water is essential when losing weight. It's good for your overall health and helps your body get rid of the extra water it's making from breaking down fat.

Fat Loss and Energy Production

Another essential thing to remember is that the energy your body makes when it breaks down fat isn't wasted. Your body uses this energy for everything from thinking to exercising. This is why you can still have power even if you're eating fewer calories to lose weight – your body uses the fat stored up as fuel.

The Role of SOZA Weight Loss and what happens to fat when you lose weight

At SOZA Weight Loss, we get how your body breaks down fat and use this info to make personalized weight loss plans that work. We help you eat fewer calories and make your body's fat-burning processes work their best so you can lose weight in a healthy, long-lasting way.

So, next time you see you've lost a pound, remember: you didn't just lose weight; you changed it – into energy, water, and breath. And by doing this, you're making yourself healthier and feeling better.

Remember, losing weight is a journey; knowing how it works can make you feel more in control. If you have any questions or want to start your journey with us, check out our website at

Keep reading our blog to learn more exciting stuff about health, nutrition, and weight loss. Not only will you know more about losing weight, but you'll also be helping us in our goal to help more people get healthier.

Gus Bouari, Co-Founder of SOZA

Health Blog Writer

About Gus Bouari, SOZA Co-Founder

After his childhood friend and co-founder, Dr. Anthony Wehbe lost 50 pounds on the SOZA weight loss program, he also did the program and lost 35 pounds. Gus is a wellness advocate and enthusiast. Gus truly believes we can all transform our lives by adapting to and following a healthy, wellness-focused lifestyle.

He has appeared on Miami NBC 6 Health in the Mix, discussing healthy eating and healthy cooking. If you ever bump into Gus, it would most likely be at a health foods store helping fellow shoppers make better food choices.


  1. Meerman, R., & Brown, A. (2014). When somebody loses weight, where does the fat go? British Journal of General Practice, 64(619), 102-103.

  2. Gropper, S. S., Smith, J. L., & Carr, T. P. (2020). Advanced nutrition and human metabolism. Boston, MA: Cengage Learning.

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