Dexa
Body Composition / Visceral Fat (No Referral Required)
What is BMD & Visceral Fat Testing (DEXA)?
A DEXA (DXA) scan is a quick, low-radiation test that provides:
- Bone Mineral Density (BMD) → assesses osteoporosis risk
- Body composition vs. muscle
- Visceral fat (VAT) → fat around organs linked to disease
DEXA is widely considered one of the most accurate and reproducible tools for body composition and bone health assessment.
Why This Matters for Patients on GLP-1 Medications
GLP-1 medications (Ozempic, Wegovy, Mounjaro, etc.) are highly effective for weight loss—but they change body composition, not just weight.
Key Clinical Considerations
1. Bone Health Risk
- Rapid weight loss can reduce bone mineral density (BMD)
- This may increase risk of osteopenia, osteoporosis, and fractures
2. Muscle vs Fat Loss
- GLP-1s can lead to loss of lean muscle along with fat
- Loss of muscle affects metabolism, strength, and long-term outcomes
3. Visceral Fat Reduction (Major Benefit)
- GLP-1s are particularly effective at reducing visceral fat, which is strongly linked to:
- Type 2 diabetes
- Heart disease
- Fatty liver
Important: The scale alone cannot distinguish whether weight loss is coming from:
- Fat (good)
- Muscle (undesirable)
- Bone (concerning)
Why Measure Visceral Fat with DEXA?
Clinical Benefits You Can Understand
1. Identifies Hidden Risk
- Visceral fat is more dangerous than subcutaneous fat
- It is associated with insulin resistance, inflammation, and cardiovascular disease
2. Tracks True Metabolic Improvement
- Patients may lose weight but not reduce visceral fat effectively
- DEXA shows where fat is being lost
3. Personalized Treatment Optimization
- Enables targeted changes:
- nutrition (protein intake)
- resistance training
- medication adjustments
4. Objective Baseline + Progress Tracking
- Establishes a baseline before starting GLP-1 therapy
- Tracks response every few months
Why Combine BMD + Visceral Fat in One Test?
| Metric | Why it matters on GLP-1 |
|---|---|
| Bone Density (BMD) | Detect early bone loss |
| Visceral Fat | Measure metabolic risk reduction |
| Lean Mass | Ensure muscle is preserved |
This combination is critical because:
- Weight loss alone can mask underlying risks
- Bone and muscle loss can occur silently during treatment
There is also evidence that visceral fat and BMD are biologically linked, with higher fat levels associated with altered bone density relationships.
Patient-Accessible Articles / References
You can reference or link to:
- DEXA and GLP-1 monitoring overview
- DEXA visceral fat explanation and benefits
- UC Davis body composition overview
Pricing for Body Composition DEXA scan: $150