What Is a DEXA Scan?
Understanding your body composition requires more than scale weight or gym body fat measurements.
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A DEXA scan (Dual-Energy X-ray Absorptiometry) provides one of the most accurate methods available for analysing:
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• body fat distribution
• lean muscle mass
• visceral fat levels
• bone density
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At Miller Health in Harley Street, London, DEXA imaging is used as part of a structured diagnostic assessment to help professionals understand their metabolic health, performance capacity and long-term risk factors.
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This is not a fitness gadget or handheld scanner.
DEXA is clinical imaging used in medical practice to measure body composition with high precision.
Where Can I Get a DEXA Scan in London?
DEXA body composition scans at Miller Health are performed at our Harley Street clinic in London as part of a structured health assessment.
The scan measures body fat distribution, lean mass and bone density, providing precise body composition data used to guide metabolic and nutrition strategy.
What Does a DEXA Scan Measure?
A DEXA body composition scan provides detailed insights including:
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Visceral Fat
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Fat surrounding internal organs within the abdomen.
Elevated visceral fat is strongly associated with:
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• cardiovascular disease
• insulin resistance
• metabolic syndrome
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This is one of the most valuable measurements for executives concerned about long-term health risk.
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Lean Muscle Mass
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DEXA can measure lean tissue distribution across different regions of the body.
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This helps identify:
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• muscle imbalances
• training adaptations
• age-related muscle decline
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Understanding lean mass is particularly useful when tracking training progress or weight loss.
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Regional Fat Distribution
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DEXA analysis provides a breakdown of body composition across different regions including:
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• abdominal fat
• limb fat
• trunk composition
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This allows clinicians to distinguish between healthy weight loss and muscle loss, something standard scales cannot detect.
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Bone Density
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DEXA is also the gold-standard tool for measuring bone mineral density.
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Monitoring bone health can be valuable for:
• athletes
• ageing professionals
• individuals with metabolic or hormonal concerns.
Why DEXA is Superior to Standard Body Fat Testing
Many commercial body composition tools rely on bioelectrical impedance analysis (BIA).
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These devices are influenced by:
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• hydration status
• food intake
• recent exercise
• electrolyte balance
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As a result, readings can fluctuate significantly.
DEXA scanning avoids these limitations by using low-dose X-ray imaging, allowing much greater precision and reproducibility.
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For professionals who want reliable data, DEXA provides a far clearer picture.
Who Should Consider a DEXA Scan?
DEXA body composition analysis can be valuable for individuals who:
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• want an accurate measurement of body fat and muscle mass
• are concerned about visceral fat or metabolic risk
• are tracking weight loss or training progress
• want a clear baseline for health optimisation
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For many executives, DEXA provides a much more meaningful health indicator than body weight alone.
How DEXA Fits into the Miller Health Explore Executive Assessment
At Miller Health, DEXA is rarely used as a standalone measurement.
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Instead, it forms part of a structured Executive Health Assessment, where body composition is interpreted alongside:
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• advanced blood testing
• metabolic analysis
• lifestyle and circadian factors
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This integrated approach allows deeper insight into issues such as:
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• fatigue
• metabolic inefficiency
• stubborn abdominal fat
• hormonal changes
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Rather than simply generating numbers, the aim is to understand the underlying drivers of health and performance.
DEXA Scan Location
DEXA scanning is performed at 25 Harley Street, London, one of the UK’s leading centres for private medical care.
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Appointments are designed to fit around professional schedules and are typically completed within a short visit.
How Accurate is a DEXA Scan for Body Fat?
DEXA scans are widely considered one of the most accurate methods for measuring body composition.
The scan uses low-dose X-ray technology to measure fat mass, lean muscle mass and bone density across different regions of the body.
Unlike bioimpedance scales, a DEXA scan provides precise measurement of visceral fat, muscle distribution and total body fat percentage, making it a preferred tool in both clinical medicine and performance health assessment.
Frequently Asked Questions
How long does a DEXA scan take?
The scan itself usually takes around 10–15 minutes.
Is a DEXA scan safe?
DEXA uses very low levels of radiation, significantly lower than many standard medical imaging procedures.
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Can I book just a DEXA scan?
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At Miller Health, DEXA is typically included within the Executive Health Assessment, where it can be interpreted alongside blood markers and metabolic data.
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This provides far greater clinical value than body composition data alone.
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How often should DEXA be repeated?
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Many individuals repeat DEXA scans every 6–12 months to track changes in body composition.
Start With Diagnostic Clarity
Many clients begin with the Executive Health Assessment, which combines advanced diagnostics to provide a clear baseline for metabolic health and performance.
The assessment includes:
DEXA body composition analysis
comprehensive blood and hormone testing
clinical interpretation from experienced dietitians
Rather than relying on assumptions, the goal is to understand how body composition, metabolism and hormonal health interact.
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Based at 25 Harley Street, London
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