Helvy
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Hormones
In the UK, the standard clinical (NHS) reference range for DHEA-Sulphate is 4.34-12.2 µmol/L (male), with 7.0-12.0 µmol/L considered the performance-optimised range. A result within these ranges suggests typical status; only a qualified clinician can interpret an individual reading.
DHEA-S (dehydroepiandrosterone sulphate) is the most abundant steroid hormone in the body, produced primarily by the adrenal glands. It serves as a precursor to both testosterone and oestrogen. DHEA-S levels peak in the mid-20s and decline steadily at roughly 2-3% per year, making it one of the most reliable biomarkers of biological ageing.
Optimal range · UK
7.0-12.0 µmol/L
Performance-optimised band · clinical (NHS) range 4.34-12.2 µmol/L (male)
Reference ranges for DHEA-S, not a personal result. Any individual reading should be interpreted by a qualified clinician.
Optimal ranges
| Range | Value |
|---|---|
| Clinical (NHS) reference range | 4.34-12.2 µmol/L (male) |
| Performance-optimised range | 7.0-12.0 µmol/L |
The clinical range defines what is considered medically “normal” — broad enough to cover 95% of the population. The performance range reflects where research and clinical experience suggest most people feel and function at their best. A result in either range suggests typical status and is not a diagnosis; any individual reading should be interpreted by a qualified clinician.
Why it matters
DHEA-S is a master upstream hormone — low levels can impair the production of downstream androgens including testosterone. For men in their 30s and beyond, declining DHEA-S correlates with reduced lean muscle mass, increased visceral fat, lower energy, and impaired immune function. Research shows that men with higher DHEA-S levels have better cardiovascular outcomes and cognitive function. It is also a sensitive marker of adrenal stress — chronically elevated cortisol depletes DHEA-S, making the DHEA-S:cortisol ratio a useful measure of stress resilience.
Symptoms
Low / Deficiency
High / Excess
Dietary sources
Supplementation
DHEA supplementation (25-50mg daily) is available over-the-counter in some countries but is a controlled substance in the UK and requires a prescription. Self-supplementation is not recommended without blood testing and medical supervision, as excess DHEA can convert to oestrogen via aromatase. The most effective strategy for most men is addressing upstream factors: reducing chronic stress (which depletes DHEA via cortisol competition), optimising sleep, maintaining healthy body composition, and ensuring adequate zinc and vitamin B6 (cofactors in steroid hormone synthesis).
Testing
DHEA-S is measured from a blood sample. With Helvy, that means a finger-prick kit taken at home and posted to a UKAS-accredited UK laboratory, with results in around 5 days, reviewed by a qualified clinician. Your result is reported against both the clinical range (4.34-12.2 µmol/L (male)) and the performance-optimal range (7.0-12.0 µmol/L), so you can see not just whether you are “normal” but whether you are optimal. If you make a change, retest after 8-12 weeks to confirm it worked.
Research
DHEA in elderly women and DHEA or testosterone in elderly men
Nair KS, Rizza RA, O'Brien P, et al.
New England Journal of Medicine (2006)
DOI: 10.1056/NEJMoa054629Related biomarkers
Related guides
This content is for educational purposes only and does not constitute medical advice. Your data suggests areas for optimisation, but any concerns should be discussed with a qualified healthcare professional. If your results flag values outside safe ranges, we recommend consulting your GP.
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