Is FFM the Same as Lean Body Mass?
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5 min read
According to a 2024 review published in *The American Journal of Clinical Nutrition*, the terms lean body mass (LBM) and fat-free mass (FFM) have historically caused confusion in scientific discourse. While often used interchangeably in casual conversation, FFM and lean body mass are not exactly the same, differing primarily in their inclusion of essential fats. This distinction, though small, is crucial for accurate body composition analysis, especially in clinical and research settings.
