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Diagnostics & Assessment

InBody Body Composition Analysis

A 60-second bioelectrical impedance scan of muscle, fat, visceral fat and body water by body segment, reviewed with a physician.

Duration
60 seconds (scan) + 15-minute physician review
Sessions
Baseline + quarterly tracking recommended
Downtime
None
Standing bioelectrical impedance body-composition analyser in a clinic room

Overview

Your bathroom scale tells you one number — total weight. That number is practically useless for understanding your health, because it cannot distinguish between the muscle that protects your metabolic health and the visceral fat that destroys it. Two people at identical weight can have radically different disease risk profiles based on their body composition.

InBody bioelectrical impedance analysis (BIA) sends multiple frequencies of electrical current through your body to measure resistance across different tissue types. Muscle, which is approximately 73% water, conducts electricity efficiently. Fat tissue, which contains very little water, resists it. By measuring impedance at multiple frequencies across five body segments (right arm, left arm, trunk, right leg, left leg), the InBody device constructs a detailed map of your body composition.

The clinical metrics that matter: body fat percentage (a far better predictor of metabolic health than BMI), visceral fat area (the metabolically active fat surrounding your organs that drives inflammation and insulin resistance), segmental lean mass (identifying muscle imbalances between left and right sides that predict injury risk), skeletal muscle mass (an important modifiable marker of healthy ageing), and extracellular water ratio (ECW/TBW — an emerging marker of systemic inflammation when elevated above 0.390).

Muscle mass matters for survival. In a study of 3,659 older adults from the US NHANES III survey, those in the highest quarter of muscle mass index had lower all-cause mortality than those in the lowest quarter (Srikanthan P, Karlamangla AS, American Journal of Medicine, 2014). That study used bioelectrical impedance, the same principle as InBody. Your muscle mass is not vanity. It is a metabolic organ and a reserve for later life.

InBody testing takes 60 seconds, requires no preparation beyond removing shoes and socks, and provides an immediately printable result sheet that your physician will review with you. We use this as a baseline metric tracked over time alongside your biomarker data. Book a consultation with our longevity physician to incorporate body composition analysis into your health optimization plan.

What the evidence says

Evidence · Strong & indicated

Well supported when your results or diagnosis call for it, and only then. How we grade evidence

What it shows

Bioimpedance estimates muscle and fat well in people who are normally hydrated, and more muscle mass predicts longer survival in older adults.

What it does not show

It is less precise than DEXA at extremes of weight or when hydration is off, so we read it as a trend rather than a single exact number.

  1. 01
    Kyle UG, et al. Bioelectrical impedance analysis, part II: utilization in clinical practice. Clin Nutr, 2004. (opens in a new tab)

    ESPEN guidance: BIA is valid in stable, normally hydrated people, and not recommended at extremes of BMI or with abnormal hydration.

  2. 02
    Srikanthan P, Karlamangla AS. Muscle mass index as a predictor of longevity in older adults. Am J Med, 2014. (opens in a new tab)

    In 3,659 older adults, those in the highest quarter of muscle mass index had lower mortality.

What it can and cannot do

What it can do

  • Estimate muscle and fat in about 60 seconds, with no radiation.
  • Track change over time in people who are normally hydrated, where bioimpedance is valid.Source [1]
  • Measure muscle mass, which in older adults is linked to lower mortality.Source [2]

What it cannot do

  • Match DEXA’s precision at extremes of weight or when hydration is off.Source [1]
  • Measure bone density. That needs DEXA.
  • Give a reliable reading in pregnancy.

Numbers in brackets point to the studies above. Medical review: a physician who did not write this page checks each line against the source it cites, and checks that nothing reads as a promised result. How we review

Who it's for

A good fit

  • Anyone beginning a fitness or body recomposition program
  • Individuals monitoring visceral fat reduction
  • Athletes tracking lean mass and hydration
  • Post-bariatric or weight management patients
  • Adults over 40 screening for sarcopenia

Talk to us first

  • Cardiac pacemaker or implanted defibrillator
  • Pregnancy (not harmful, but results unreliable)

Before your appointment

  • Tell us first if you have a pacemaker or implanted defibrillator, or are pregnant.
  • For the most consistent reading: nothing to eat or drink for 2 to 3 hours, no exercise for 6 to 12 hours, and use the bathroom beforehand.
  • Shoes and socks come off for the scan.
  • Time to allow: 60 seconds (scan), then 15-minute physician review.

Your physician confirms at screening whether this is right for you. If anything above applies, tell us when you book.

What happens on the day

  1. 01

    Before you arrive

    Preparation instructions, such as fasting for blood work, are sent when you book.

  2. 02

    The test

    Consent and basic vitals, then the assessment itself: 60 seconds (scan) + 15-minute physician review.

  3. 03

    Physician review

    A Genoryx physician takes you through the results against your history and goals.

  4. 04

    Your plan

    A written summary with clear next steps and when to retest.

What we measure

  • 01InBody 770 medical-grade BIA
  • 02Multi-frequency bioelectrical impedance (1kHz-1MHz)
  • 03Segmental analysis (5-segment, 6-frequency)

Physician oversight

Every result is reviewed with you by a Genoryx physician, against your history and goals. Results are interpreted in context, not as a stand-alone diagnosis, and anything that needs specialist follow-up is referred on.

Meet the clinical team

Questions people ask

How accurate is InBody compared to DEXA scan?

InBody medical-grade devices correlate within 2-3% of DEXA for body fat measurement in clinical validation studies. InBody excels at tracking changes over time due to its excellent test-retest reliability. For an absolute gold-standard measurement, we also offer DEXA scanning. Many patients use InBody for frequent tracking and DEXA for periodic validation.

What should I do before an InBody scan for accurate results?

For best accuracy: test at the same time of day, avoid eating or drinking for 2-3 hours before, avoid exercise for 6-12 hours, and use the bathroom beforehand. Consistency of conditions matters more than perfection — the value is in tracking trends over time.

What is a healthy body fat percentage?

Optimal ranges differ by sex and age. For men, 10-20% body fat is generally considered healthy, with longevity research suggesting 12-18% as ideal for metabolic health. For women, 18-28% is healthy, with 20-25% considered optimal. Your physician will contextualize your results against your age, activity level, and health goals.

Automated blood analyser with a rack of collection tubes in a daylit laboratory

Evidence · Established

Comprehensive Biomarker Panel

The fasting blood panel in the 400+ parameter entry assessment: heart, metabolic, hormone, liver, kidney and inflammatory health, read with a physician.

30-45 minutes (blood draw) + 60-minute physician consultation

DEXA body-composition scanner with its scanning arm over the table

Evidence · Established

DEXA Body Composition Scan

Dual-energy X-ray absorptiometry, a reference method for measuring fat, lean mass, visceral fat and bone density region by region.

10-15 minutes (scan) + 30-minute physician review

Treadmill and metabolic cart set up for cardiopulmonary exercise testing

Evidence · Established

VO2 Max Testing

A cardiopulmonary exercise test of your maximum oxygen uptake, one of the strongest predictors of long-term health, with your training zones.

45-60 minutes (including warm-up, test, and cool-down)

Your biological age is a number you can measure.

Start with the 400+ parameter entry assessment and a 60-minute physician consultation at either Hyderabad clinic. Open seven days, 11 AM to 9 PM.

Book a consultation