What is Free Fat Mass (FFM)?

Lean mass is muscle tissue. It is rich in water (about 60%) and greatly influences metabolism.

The more muscle mass we have, the more calories we are able to burn, both at rest and during activity.

It’s divided into

  • Body Cellular Mass (BCM)
  • Intracellular Mass (ICM)
  • Extracellular Mass (ECM)
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What is Fat Mass (FM)?