Muscle and fat

The balance between muscle mass and fat, BMI, body fat percentage and the summary score. These values are related and should not be read in isolation.

Where to find it: The Muscle-Fat Analysis bar chart and the Obesity Analysis section that follows it.

Values in this section

Percent body fatPBFPercent Body Fat tells you what share of your total weight is made up of estimated fat mass.

BMIBMIBMI is weight divided by height squared; it describes weight relative to build but cannot tell muscle from fat.

InBody ScoreInBody Score is a manufacturer summary figure for body composition relative to a reference weight — it is not a grade for your health.

Muscle indexSMISkeletal Muscle Index relates limb muscle mass to height squared so it can be compared between people of different build.

FFMIFFMIFFMI relates fat free mass to height squared, so it shows the amount of non-fat tissue independently of build.

FMIFMIFMI relates fat mass to height squared, so it shows the amount of fat independently of build.

Muscle shareSMM/WTThis value shows what share of your total body weight is made up of skeletal muscle mass.

Explanations make the most sense alongside your own trend.

The public guide is open to everyone. The client portal adds your own value, history and the context of a specific measurement.

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