DHEA
An adrenal hormone precursor with narrow, population-specific benefits.
What is DHEA?
DHEA (Dehydroepiandrosterone) is a longevity supplement used for adrenal insufficiency replacement. NutriDex grades the human evidence as Mixed. DHEA is a hormone made by the adrenal glands that the body converts into testosterone and estrogen; blood levels fall steeply with age, fuelling anti-aging marketing. The honest picture is narrow. In women with adrenal insufficiency, replacement gives small improvements in quality of life and mood. Pooled trials show 25–50 mg/day raises lumbar-spine bone density about 1% over a year in older women (but not men, and not the hip). A 2020 meta-analysis of 15 RCTs found a small antidepressant effect (SMD −0.28). For IVF in diminished ovarian reserve, meta-analyses conflict — some show higher pregnancy odds, others none. Crucially, it does nothing for strength or body composition in healthy young adults, and is banned in sport. Effects on libido, cognition, lipids and longevity are unproven.
Purported Benefits
Evidence by outcome
The same supplement can be well-proven for one use and unproven for another — here is the human evidence graded outcome by outcome.
| Outcome | Evidence | Effect | Studies |
|---|---|---|---|
| Quality of life in adrenal insufficiency (women)Meta-analysis shows small HRQoL/depression improvement in women with adrenal insufficiency; no effect on anxiety or sexual well-being. | Moderate | ↑ benefit · small | 1 |
| Lumbar-spine bone density in older womenPooled RCTs show ~1% spine BMD gain in older women only; no benefit in men or at the hip. | Moderate | ↑ benefit · small | 2 |
| Depressive symptomsMeta-analysis of 15 RCTs found small antidepressant effect (SMD -0.28) but GRADE-rated very low quality. | Preliminary | ↑ benefit · small | 1 |
| IVF/pregnancy in diminished ovarian reserveMeta-analyses conflict: one shows higher pregnancy odds, a later one finds no live-birth benefit with high heterogeneity. | Mixed | ↔ mixed | 2 |
| Strength / lean mass in healthy adultsRCT in young men and meta-analysis in older men show no gain in testosterone, strength or lean mass. | Moderate | — no effect · negligible | 2 |
Dosing & Compounds
Safety & Cautions
DHEA drug interactions
Known or theoretical interactions between DHEA and common medications — educational, not exhaustive. Always check with your doctor or pharmacist before combining DHEA with any medicine.