The real meaning of obesity is less to do with weight and more to do with having a high body fat percentage. The largest component of our body is water, which is about 50-60% of our body's composition; 8-10% of which is blood. The second largest component is fat, which is about 15-20% for men and 20-30% for women. The rest of our body is composed of proteins and minerals which are found in our bones and muscles as well as saccharides, or sugars.
Our bones are mainly composed of protein and calcium, however the total weight of bones is relatively light and only amounts to about 5% of our total body weight. We gain weight either by an increase in water or an increase in fat. When our body has too much water it is known as edema. When it has too much fat, it is known as obesity.
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