Fat Mass Index (FMI): Age Trend
Median FMI peaks at 65-69 (8.67 kg/m² men, 12.35 women), up from 6.06 and 8.75 at 20-24, and drops by 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 |