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The Longevity Review Without the sales pitch
Moderate

DEXA — Bone Density & Body Composition

Last reviewed 25 August 2026 · Evidence-graded review — see Methodology

One machine sold for two quite different purposes, which is the source of most of the confusion around it. Dual-energy X-ray absorptiometry measures bone mineral density — its original, guideline-endorsed use — and also whole-body composition: fat mass, lean mass, and a modelled estimate of visceral adipose tissue. Osteoporosis is common, silent until fracture, and treatable. Visceral fat drives insulin resistance, dyslipidaemia and hepatic inflammation through portal free-fatty-acid and cytokine release. The two use cases do not carry the same weight of evidence, and packages rarely separate them.

Why it grades Moderate

The bone density use case is genuinely Strong: well-validated fracture-risk prediction, guideline-endorsed for screening postmenopausal women and older men. The body-composition use case marketed in longevity packages is weaker. Visceral fat measured directly by CT is an independent predictor of all-cause mortality in men, but the VAT figure a DEXA returns is a modelled estimate derived from 2D imaging rather than a direct volumetric measurement, with acknowledged limits in distinguishing visceral from other trunk fat depots compared with CT or MRI. It is a reasonable, low-radiation proxy for tracking change over time — read the specific VAT number as an estimate, not a precise clinical figure.

Visceral fat and mortality: PubMed: PMID 16571861 (Kuk JL, et al., "Visceral fat is an independent predictor of all-cause mortality in men") · Full cost breakdown & bone density vs body composition →

FrequencyBone density: risk reassessed every 5 years, with a scan only when the assessment indicates one. Body composition: optional, every 6–12 months if tracking a fitness programme
Cost (SGD)S$140–310 (bone density from S$141.70; body composition from S$308.47)
Appropriate forBone density: in Singapore, women from 50 or menopause whose OSTA risk score points to a scan, and men from 65 after a clinical risk assessment. Body composition: not recommended for screening by Singapore's committee, which uses BMI and waist circumference instead; some use it to track fat and lean mass over time

Singapore guidance

  • Bone density Recommended for higher-risk groups only
  • Body composition Not recommended for screening

For bone density, Singapore’s national screening committee treats DEXA as a high-risk test, not a population screen — risk is assessed first (OSTA for Asian women from 50, clinical assessment for men from 65) and the scan follows only if that assessment indicates it. For body composition, body-fat measurement is listed as not recommended for screening; BMI and waist circumference are the recommended measures.

Source: Screening Test Review Committee report 2026, Volume 1 (Academy of Medicine Singapore and Ministry of Health, February 2026), Tables 2E(i), 2E(iia), 2E(iib), 2D(i). The full national list · How this is used.

What you would actually pay

Healthier SG
Not subsidised
MediSave
Not among the screenings named for outpatient claims

Source: Healthier SG Screening (HealthHub) and MediSave outpatient care (Ministry of Health). Absence from either list is not a statement that the test is discouraged — only that no subsidy or claim applies. Gross prices compared.

What it costs when it is wrong

Basis
No published harm criterion found
Severity
Not documented

No published harm criterion found for this test.

An empty finding, not a clean bill of health: this means nothing documented was found for this test. It is not a claim that the test is safe.

Screening harm is not only a laboratory question: the committee’s own criteria advise against a test when “the screening test, or follow-up tests arising from a positive screen, are associated with significant medical risks”. Sources on overdiagnosis → · How this is graded.

For bone density, the committee’s first step is a risk score, not a scan: work out your OSTA score →

Singapore pricing. We have a full price breakdown for this test, using checked 2026 figures from named providers — read the price guide →

FAQ

Is the DEXA — Bone Density & Body Composition worth doing in Singapore?

Judged for screening an asymptomatic adult, DEXA — Bone Density & Body Composition grades moderate on our rubric. It is most appropriate for bone density: in Singapore, women from 50 or menopause whose OSTA risk score points to a scan, and men from 65 after a clinical risk assessment. Body composition: not recommended for screening by Singapore's committee, which uses BMI and waist circumference instead; some use it to track fat and lean mass over time. It typically costs S$140–310 in Singapore. Two schedules apply: bone density: risk reassessed every 5 years, with a scan only when the assessment indicates one. Body composition: optional, every 6–12 months if tracking a fitness programme.

Weighing this against something else? Compare it with two other tests → · Price it inside a panel →