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Salisbury House, London WallLondon, EC2M 5QQ

About My Vital Metrics

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Composition and Metabolic Testing

DEXA for Body Composition

DEXA for Bone Density

Body Composition Lite

Resting Metabolic Rate

FatMax Testing

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NHANES Conversion Calculator

The below calculator will convert the key results from your NHANES DEXA Scan to the real bodyfat and lean mass figures

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DEXA Scans

What does this calculator do?

Not All DEXA Scanning Services are equal. Some services use a calibration called ‘NHANES’. The NHANES calculation does a normal DEXA Scan but then will reduce the Lean mass by 5.6% and will add this value to the fat mass. 

This calibration has been shown to give innacurate results and the scientific consensus as well as the manufacturer recommendation is that all DEXA Scanners should not use this calibration

So who is using this outdated method?

Sadly some services have not followed the current scientific consensus and have continued to use NHANES. In the UK, Bodyscan UK Ltd, which is based in Bank and Marylebone in London uses the NHANES calculation, as do some of the Harley Street clinics.

What should I do about my NHANES Scan?

Well, first use the calculator and understand that your real body fat percentage is not as high as the services above would have you believe. Personally then we would recommend finding and using a service that doesn’t use NHANES. My Vital Metrics has always and will always use the most up to date science available. 

When should I use this calculator?

Any time you get a scan with one of the organisations above, or if you have any scan which shows ‘NHANES’ on the report like below.

 

Can I have more information on this?

Yes, we have a full rundown of the science and the links to manufacturers and scientific papers in our blog post here

 

The chart shows example DEXA body composition results taken from a DEXA machine using the NHANES calibration. There is a red circle around the "NHANES BCA" tag that indicates the calibration type.

NHANES Conversion Calculator

This Calculator will convert your NHANES- modified DEXA Results to a true results which can there be compared to other scanning services.
From the composition figures sheet please enter the following information.
Your NHANES-modified DEXA Scan told you your bodyfat% was:
00
Your Actual Figures are below
Your True Body Fat % is :
00
Your True Lean Mass is :
00
Your Accurate Resting Metabolic Rate is:
00
You Can use the above figure now in our Total Daily Energy Needs Calculator