Lean Body Mass

Technically, the term "lean mass" is your mass with 0% body fat. This means your organs, blood, tissues, bones, muscle, everything. It does not include any fat whatsoever.

Being toned is just having a low body fat percentage. But "adding lean mass" means adding muscle without fat--hence the "lean" part.

But lean mass is not your weight at a low body fat percentage. And people with different body types may carry different amounts of lean mass, based on bone size and muscle mass. For example, I weigh approximately 193 and am 17.5% body fat or a little lower. It sounds like a lot, me being 5'9, but I carry around 155 pounds of lean mass. That means if I was 155 (my suggested BMI weight), I would look incredibly sick and old. And probably would be in the hospital. But no matter how much you weigh, you can look completely different. For example, 193 at 30% body fat is a completely different size from 193 at 15% (my goal).

So just something to think about! :) The only way to build lean mass is to lift weights, and the only way to reduce body fat is through weights, cardio, and (of course) diet.
 
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