Research
Energy balance
Dual-energy X-ray absorptiometry (DXA) is the current reference standard for assessing body composition in clinical research due to its accuracy, low radiation, and ability to distinguish between fat mass, lean mass, and bone mineral content, although it has limitations regarding hydration status assumptions.
If you need an accurate assessment of your body composition (fat vs. muscle vs. bone), DXA is the most accessible and reliable clinical standard available today. It provides a detailed breakdown that BMI cannot, helping to identify hidden risks like visceral fat or muscle loss.
StrongSupportsHIGH confidence
DXA was originally developed to evaluate bone mineral density, but it has gained popularity as a method to assess whole-body and regional soft-tissue composition... it is widely considered as the gold standard for BC assessment in clinical practice... DXA represents a good candidate to be a gold standard technique to measure longitudinal changes in BC... because of its high accuracy and precision, large availability, and low-cost.
Why this rating
The paper cites multiple studies establishing DXA's status as the reference method.
Source
Aging and Imaging Assessment of Body Composition: From Fat to Facts
Federico Ponti et al. · Frontiers in Endocrinology · 2020
DOI 10.3389/fendo.2019.00861
narrative_reviewCited 383×
Read the paper DOI resolved against Crossref · corpus check 2026-06-10
More from this paper
- Aging is characterized by a specific redistribution of body composition involving increased total fat mass and visceral adiposity alongside decreased lean mass and bone density, which drives chronic low-grade inflammation (metaflammation) and increases the risk of age-related diseases independent of overall body weight or BMI.Good
- MRI is the most advanced and accurate technique for evaluating muscle quality and detecting early fatty infiltration (sarcopenia) in aging, offering superior contrast between fat and muscle compared to CT or DXA, despite higher costs and complexity.Good
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