NutriStack
DHEA and Testosterone, a caution.
DHEA is a precursor hormone that can be converted to both testosterone and estrogen. When combined with exogenous testosterone therapy, DHEA supplementation may increase total androgen and estrogen load beyond desired levels. DHEA can be back-converted to DHEAS and can also undergo aromatization to estradiol. In men on TRT, adding DHEA creates unpredictable hormonal effects and may increase estrogen-related side effects (gynecomastia, water retention).
One pair, every claim cited. The two substances, the type, the mechanism, the recommendation, and the primary literature.
Same shape as the other 1,729 pairs in the public database.
From the interaction database
What the row says.
Every entry follows the same shape: what is happening, the mechanism, the recommendation, and the primary literature.
At a glance
- Substances
- DHEA and Testosterone
- Pair type
- Caution
- Evidence (highest tier)
- Moderate
- Source citations
- 4 sources
- Stack Score effect
- −5 to your Stack Score (per scored caution row).
- Scope
- Supplement × Prescription
- Last verified
- May 30, 2026
Caution · Moderate evidence
Caution
What is happening. DHEA is a precursor hormone that can be converted to both testosterone and estrogen. When combined with exogenous testosterone therapy, DHEA supplementation may increase total androgen and estrogen load beyond desired levels. DHEA can be back-converted to DHEAS and can also undergo aromatization to estradiol. In men on TRT, adding DHEA creates unpredictable hormonal effects and may increase estrogen-related side effects (gynecomastia, water retention).
Mechanism. DHEA is converted to androstenedione by 3-beta-hydroxysteroid dehydrogenase, then to testosterone by 17-beta-HSD, or to estrone by aromatase. When combined with exogenous testosterone, the total androgenic and estrogenic load increases. Some exogenous testosterone may also back-convert to DHEAS, further complicating the hormonal milieu.
Recommendation. Discuss DHEA use with your prescriber before combining with testosterone therapy. If both are used, monitor comprehensive hormone panels including testosterone, estradiol, DHEA-S, and DHT. Start DHEA at low doses (25 mg/day) and titrate based on lab results. Watch for signs of excess estrogen (breast tenderness, water retention).
Sources (4)
- Nair KS et al. DHEA in elderly women and DHEA or testosterone in elderly men. N Engl J Med. 2006;355(16):1647-1659. PMID 17050889
- Lin H, Li L, Wang Q, Wang Y, Wang J, Long X. A systematic review and meta-analysis of randomized placebo-controlled trials of DHEA supplementation of bone mineral density in healthy adults.. Gynecological Endocrinology. 2019. PMID 31237150
- Li Y, Ren J, Li N, Liu J, Tan SC, Low TY et al.. A dose-response and meta-analysis of dehydroepiandrosterone (DHEA) supplementation on testosterone levels: perinatal prediction of randomized clinical trials.. Experimental Gerontology. 2020. PMID 33045358
- Qin Y, O Santos H, Khani V, Tan SC, Zhi Y. Effects of dehydroepiandrosterone (DHEA) supplementation on the lipid profile: A systematic review and dose-response meta-analysis of randomized controlled trials.. Nutrition Metabolism and Cardiovascular Diseases. 2020. PMID 32675010
Stack Score
How this pair moves the number.
Effect on the composite score
If both DHEA and Testosterone are in the same stack, this pair applies −5 to your Stack Score (per scored caution row).
The full algorithm, the clamping rules, and four worked stacks are documented at /methodology/stack-score.
Check your full routine
One pair was the worked example. NutriStack runs every pair in your stack at once.
Drop in your supplements and prescriptions and the public database surfaces every interaction, synergy, timing rule, and contraindication, every one linked to its primary source.