If you lose some weight, still you may look fatter! This is possible if you lose more muscles than fat. since one pound of body fat is less dense than one pound of muscle, so it takes up more space on your figure than a pound of muscle. Hence losing muscles means you would look more bulky. Let me discuss the issue in more detail.
What is Body Fat Percentage?
Body fat percentage is the amount of fat tissue in your body as a percentage of total body weight. So if your weight is 160 pounds and your body fat percent is 20 percent, it means that you have 32 pounds of fat (160 x 20/100). And then the rest of your weight (160 -32 =128 pounds) is formed of lean body mass.
Or in other way, if your weight is 200 pounds and you have 50 pounds of fat,your body fat percentage is 25 percent (50/200 x100). Which means you have a 150 pounds of leans body mass.
Composition of our body
Let me tell a little more on body composition. Our body is composed of body fat, muscles and bones. In the physical fitness field the composition is more simplified as fat and lean body mass. Where Lean Body Mass (LBM) indicates muscles and bones. So your body is made up of:
1) Body Fat - Indicate the fat in your body.
2) Lean Body Mass (LBM) -Refers to the sum of the weight of your muscles, bones and organs, or in other words the sum of everything other than fat in your body.
What losing weight exactly means!
You can lose weight in different ways. You may lose fat, lose LBM or lose both. In all cases you will lose body weight. Though our main goal is to lose body fat, many case we lose LBM, unintentionally. Quick fix or crash diet or misconception of diet lead us to lose precious muscles. So when we are interested to lose weight, our concern should be to lose body fat not lean body mass.