DHEA-S (dehydroepiandrosterone sulfate) is the most abundant adrenal androgen — produced primarily by the adrenal glands. It’s the sulfated form of DHEA, which serves as a precursor for sex hormones. DHEA-S is stable in blood (unlike DHEA which fluctuates), making it the preferred test. Reference ranges vary significantly by age: peak in 20s (300-600 mcg/dL); declines steadily with age (over 70 often under 100). Testing uses: PCOS evaluation, congenital adrenal hyperplasia screening, adrenal tumor workup, adrenal insufficiency evaluation, premature adrenarche in children. Not routinely tested for diabetes. Elevated DHEA-S causes: congenital adrenal hyperplasia (non-classic form most common in adults), PCOS (modest elevation), adrenal tumor (rare; significant elevation), Cushing’s syndrome (some cases), DHEA supplementation. Significantly elevated DHEA-S (over 700 mcg/dL) suggests tumor or major adrenal pathology. PCOS connections: characterized by insulin resistance; many women with PCOS have modestly elevated DHEA-S along with elevated testosterone; treatment (metformin, weight loss, GLP-1 agonists) improves both insulin resistance and androgen excess. DHEA supplementation generally not recommended for diabetes — randomized trials show minimal or no benefit for cognitive function, body composition, or metabolic health; side effects include acne, oily skin, hair growth in women, mood changes; may raise estrogen (cancer history concern); not regulated like medications. For most adults with diabetes, DHEA-S not routinely tested; used in specific clinical situations to evaluate hyperandrogenism or adrenal disorders.
DHEA-S Reference Ranges by Age
| Age | DHEA-S Women (mcg/dL) | DHEA-S Men (mcg/dL) |
|---|---|---|
| 20-30 | 65-380 | 280-640 |
| 30-40 | 45-270 | 180-490 |
| 40-50 | 32-240 | 140-440 |
| 50-60 | 26-200 | 120-365 |
| 60-70 | 13-130 | 90-260 |
| over 70 | 5-90 | 20-200 |
Causes of Elevated DHEA-S
- Congenital adrenal hyperplasia (CAH): enzymatic defect; non-classic form most common in adults.
- PCOS: modest elevation along with elevated testosterone.
- Adrenal tumor (rare): significant elevation; often over 700 mcg/dL.
- Cushing’s syndrome (some cases): cortisol excess with associated androgen excess.
- Premature adrenarche: in children — early adrenal androgen production.
- DHEA supplementation: exogenous source.
- Some androgen-secreting tumors: ovarian or adrenal.
Causes of Low DHEA-S
- Aging (natural decline).
- Adrenal insufficiency (Addison’s disease).
- Hypopituitarism — pituitary dysfunction.
- Severe stress or chronic illness.
- Long-term corticosteroid use.
- Anorexia nervosa.
- HIV/AIDS.
- Type 1 diabetes (sometimes associated with relative deficiency).
- Severe depression.
- Chronic kidney disease.
PCOS and DHEA-S
- 30-50% of women with PCOS have modestly elevated DHEA-S.
- Indicates adrenal contribution to hyperandrogenism.
- Often elevated alongside testosterone.
- Treatment same as overall PCOS: weight loss, metformin, OCPs, anti-androgens (spironolactone).
- GLP-1 agonists newer for PCOS — particularly effective.
- Treating insulin resistance often modestly lowers DHEA-S.
- Lifestyle interventions support both metabolic and hormonal improvements.
DHEA Supplementation Considerations
- Available OTC in U.S.; banned in some countries.
- Common doses: 25-100 mg.
- Marketed for “anti-aging,” cognition, libido, metabolic health.
- Evidence: minimal benefits in randomized trials.
- Some evidence for adrenal insufficiency replacement (specialized; low-dose 10-25 mg with provider guidance).
- Side effects: acne, oily skin, hirsutism in women, breast tenderness, mood changes.
- May affect hormone-sensitive cancers — avoid with breast, prostate cancer history.
- Banned by athletic organizations (anabolic precursor).
- Not regulated like medications — quality varies.
- Don’t take without discussing with healthcare provider.
When to Test DHEA-S
- PCOS evaluation (with testosterone, LH/FSH).
- Congenital adrenal hyperplasia screening.
- Hyperandrogenism workup (hirsutism, acne, menstrual irregularities).
- Adrenal tumor evaluation (with imaging).
- Adrenal insufficiency evaluation (with cortisol, ACTH).
- Premature adrenarche in children.
- Unexplained virilization.
- Not routine for diabetes — only when clinical suspicion for adrenal disorder.
Workup Patterns
| Pattern | Possible Diagnosis |
|---|---|
| Modest DHEA-S elevation + elevated testosterone | PCOS |
| Significant DHEA-S elevation (over 700) | Adrenal tumor; investigate |
| Elevated DHEA-S + elevated 17-OH-progesterone | Congenital adrenal hyperplasia |
| Elevated DHEA-S + Cushingoid features | Cushing’s syndrome variant |
| Low DHEA-S + symptoms of adrenal insufficiency | Addison’s disease |
| Low DHEA-S + chronic illness | Functional adrenal suppression |
The Bottom Line
DHEA-S (dehydroepiandrosterone sulfate) is the most abundant adrenal androgen — produced primarily by the adrenal glands’ zona reticularis. It’s the sulfated form of DHEA, which serves as a precursor for sex hormones (testosterone and estrogen). DHEA-S is stable in blood (unlike DHEA which fluctuates), making it the preferred test. Reference ranges vary significantly by age: peak in 20s (300-600 mcg/dL); declines steadily with age (over 70 often under 100). Testing uses: PCOS evaluation, congenital adrenal hyperplasia screening, adrenal tumor workup, adrenal insufficiency evaluation, premature adrenarche in children. Not routinely tested for diabetes. Causes of elevated DHEA-S: congenital adrenal hyperplasia (non-classic form most common in adults), PCOS (modest elevation; 30-50% of women with PCOS), adrenal tumor (rare; significant elevation often over 700 mcg/dL), Cushing’s syndrome (some cases), DHEA supplementation. Causes of low DHEA-S: aging (natural decline), adrenal insufficiency (Addison’s disease), hypopituitarism, severe stress or chronic illness, long-term corticosteroid use, anorexia nervosa, HIV/AIDS, chronic kidney disease. PCOS connections: characterized by insulin resistance; many women with PCOS have modestly elevated DHEA-S along with elevated testosterone; treatment (metformin, weight loss, GLP-1 agonists, OCPs, anti-androgens like spironolactone) improves both insulin resistance and androgen excess. DHEA supplementation considerations: available OTC in U.S.; marketed for “anti-aging,” cognition, libido, metabolic health; evidence shows minimal benefits in randomized trials; specialized use in adrenal insufficiency replacement (low-dose 10-25 mg with provider guidance); side effects include acne, oily skin, hirsutism in women, breast tenderness, mood changes; may affect hormone-sensitive cancers — avoid with breast or prostate cancer history; banned by athletic organizations; not regulated like medications. Don’t take without discussing with healthcare provider. Workup patterns: modest DHEA-S elevation + elevated testosterone = PCOS; significant DHEA-S elevation (over 700) = adrenal tumor (investigate); elevated DHEA-S + elevated 17-OH-progesterone = congenital adrenal hyperplasia; elevated DHEA-S + Cushingoid features = Cushing’s syndrome variant; low DHEA-S + symptoms = Addison’s disease or chronic illness. For most adults with diabetes, DHEA-S not routinely tested; used in specific clinical situations — PCOS evaluation, congenital adrenal hyperplasia screening, hyperandrogenism workup, adrenal tumor or insufficiency evaluation. See our broader diabetes detection guide for context.
