Gym Reb3l: Understanding Body Composition and Weight Loss

Understanding Body Composition and Weight Loss

Body composition is the proportion of fat and fat-free mass in your body.

A healthy composition is one that includes a lower percentage of fat and a higher percentage of fat-free mass, which includes muscle, bones, and organs.

It is measured to assess your health and fitness level.

Often, you will have your composition measured at the start of a weight loss or fitness program and checked periodically to monitor your progress.

What Is It Composed of?

Well that would be, Fat, and fat-free mass.


Fat can be found in muscle tissue, under the skin, or around organs. Some of it is necessary for overall health. It is called essential fat and it helps protect internal organs, stores fuel for energy, and regulates important hormones. But you may also have excess storage of fat and non-essential fat.

Fat-Free Mass:

This includes bone, water, muscle, organs, and tissues. It may also be called lean tissue. These tissues are metabolically active, burning calories for energy, while fat is not.

How Do We Measure Body Composition?

It is a measurement of body composition telling how much of the weight is fat, or fat-free mass. There are normal ranges for body fat, which differ for men and women.

Weighing yourself on a regular bathroom scale does not truly assess your composition because a regular scale cannot tell how much of your total weight is comprised of water, fat, or muscle. To know if your composition is healthy, you should get an estimate of your body fat percent. If you look at the table below you can put yourself in one of these categories.

Chart For Body fat Percent

Once you can understand body composition and weight loss, and how this works together you are in a position to fully understand the change your body goes through when training, especially under the guidance of a personal trainer

We focus too much on scale weight, and while this is important to keep track and part of the monitoring process

Body Composition is really what you need to track in terms of how much weight you are losing compared to how much fat you are losing

That is why the personal trainers at Gym Reb3l monitor your fat levels, body measurements, as well as body weight so we can get a full overall picture of what is happening