When it all comes down to losing or gaining weight, most people turn to the scales to determine how much they should lose or gain to have the weight or the shape that they desire.
However, health experts said weight alone is not a clear indicator of good health because it does not distinguish between pounds that come from body fat and those that come from lean body mass or muscle.
Being over fat and overweight is not the same. Overweight simply means an excess of total body weight based on population averages for heights and body frame sizes. On the other hand, obesity is defined as an excess of body fat regardless of weight.
What we have to consider, experts said, in order to determine our fitness, is to know our body fat. Remember that body fat is a percentage of your total weight, so even slender people can have dangerously high levels of body fat.