Fat Mass Index (FMI): Age Trend
Median FMI rises from 6.06 kg/m² (men) and 8.75 kg/m² (women) at 20-24 to 8.67 and 12.35 kg/m² at 65-69, and is 7.79 and 10.27 kg/m² at 85+. All US adults, NHANES 1999-2004 Hologic DXA.
Fat Mass Index (FMI) Body Composition Trend
fat mass index FMI fat mass per height squared body fat index DEXA DXA scan fat mass index by age NHANES DXA trend aging norms normative data normative values reference values percentiles benchmarks reference ranges standards Fat Mass Index (FMI) by Age Chart (kg/m²)
Fat Mass Index (FMI) Median Values
| Age | Male (kg/m²) | Female (kg/m²) |
|---|---|---|
| 20-24 | 6.06 | 8.75 |
| 25-29 | 7.08 | 9.68 |
| 30-34 | 7.11 | 9.99 |
| 35-39 | 7.31 | 10.39 |
| 40-44 | 7.80 | 10.91 |
| 45-49 | 7.91 | 11.67 |
| 50-54 | 8.30 | 11.61 |
| 55-59 | 8.26 | 12.10 |
| 60-64 | 8.61 | 11.99 |
| 65-69 | 8.67 | 12.35 |
| 70-74 | 8.50 | 12.07 |
| 75-79 | 8.53 | 11.67 |
| 80-84 | 8.10 | 10.61 |
| 85+ | 7.79 | 10.27 |