Dr. Layne Norton: Tools for Nutrition & Fitness

8326.379 - 8348.694 Dr. Layne Norton

And by the way, the last 20% probably is explained by where that lean mass occurs because liver, for example, is a more metabolically active tissue gram per gram than pretty much any other tissue. Skeletal muscle is more metabolically active than fat tissue. But for a lean tissue, it's actually somewhat metabolically slow because its turnover rate is only like 1% to 2% per day.