DXA scan
What is a DXA scan?
Dual-energy X-ray Absorptiometry (DXA) uses small amounts of x-ray to measure body composition. A DXA scan can:
- quantify and locate body-fat percentage and lean muscle mass percentage
- measure bone mineral density
- monitor bone density and body composition trends over time
The scan is FDA-approved to measure visceral adipose tissue (VAT) — the deep fat surrounding internal organs. VAT is linked to type-2 diabetes, cardiovascular disease, and cancer.
How to prepare
- Avoid calcium supplements 24 hours before the scan
- Have a lighter meal or fast beforehand
- You’ll change into a gown
- Remove zips, hooks, jewelry, and buckles
What to expect
You’ll lie on a table while a scanning arm passes over your body. The whole scan typically takes less than 10 minutes. Participants receive a detailed body-composition report with regional analysis.