Here is my second most favorite info graph from Precision Nutrition (the agency I got my cert from and hosts my coaching software). There are real costs involved with getting lean and there are real advantages too. Please know that wherever you are on this chart that is okay! Know that your value is not reflected on the scale. This info-graph is meant to inform you on what different body composition will cost you and what are the trade offs. As well as, what kind of changes you can expect with different nutritional habits. I like this chart because it clearly breaks down the give and takes of each body composition. In addition to explaining the weekly actions required at each level of leanness.
I hope you find this info-graph helpful and educational.