gpt-dict.com

DHEA for Aging

Verdict: DHEA does not slow aging

High-quality trials show DHEA supplements do not slow aging or meaningfully improve body composition, strength, or vitality. DHEA is a hormone (a prescription drug in many countries), and major clinics advise against using it for anti-aging.

D 🔴 D Counter-Evidence Counter-Evidence

🔬Why this grade7-layer evidence engine

The grade is D (Counter-Evidence) because the best clinical evidence is consistently null. The landmark 2-year double-blind Mayo/NIA randomized trial in 144 older adults with low DHEA-S (Nair et al., NEJM, PMID 17050889) found no meaningful effect on body composition, peak VO2, muscle strength, insulin sensitivity, or quality of life, with only a tiny, inconsistent change in bone density.

Two meta-analyses confirm the picture. A 2020 pooled analysis (PMID 32745490) found only marginal shifts in lean mass (+0.45 kg) and fat mass (-0.85%), with no change in body weight, BMI, or blood pressure. A 2013 meta-analysis of 25 trials in older men (n=1353, PMID 23824417) found the fat-mass reduction vanished after adjusting for downstream testosterone and estradiol, with no benefit to metabolic, bone, sexual, or quality-of-life outcomes. No trial shows DHEA extends lifespan or reverses aging.

Regulators and clinics reinforce this. The FDA's only DHEA-based approval is prasterone (Intrarosa) for postmenopausal painful sex, not anti-aging; the UK NHS classes DHEA as a prescription-only, controlled drug; and WADA bans it as an anabolic agent. Mayo Clinic states research has not proven anti-aging claims and warns the risks may outweigh any benefit, a position echoed by Cleveland Clinic and Harvard Health.

⚖️

Scoring transparency

All scores computed by a 7-layer evidence engine — fully auditable
Raw score 0.34
D
C
B
A
S
← counter-evidence / ineffectiveeffective / strong evidence →
Final grade
D · Counter-Evidence
Confidence
86%
Highly consistent evidence
Evidence level
E2
Multiple high-quality MAs (≥2 independent, consistent)

How strongly each layer supports this effect

lower = less supportive
L5 Clinical bodiesAuthoritative stance
0.15
L1 ExamineGlobal benchmark
0.30
L11 AI re-checkIndependent read
0.30
L2 PubMedPrimary literature
0.45
L3 MechanismPlausibility
0.45
Against Mixed Supports
▸View the full decision path (audit trail)
  1. compute_raw_score — 加權公式: L2×0.30 + L3×0.25 + L5×0.25 + L11×0.10 + L1×0.10 = 0.345
  2. tier_from_score — 依分數區間映射至 tier letter
  3. apply_hec_rules — 高階證據未達主導 (1 positive vs 1 negative)，由 raw_score 決定
  4. tier_strict_requirement_check — Tier 條件達標，未降階
  5. detect_disputes — 偵測到 0 個 hard + 0 個 soft dispute
  6. decide_status — 依 tier + dispute 結果決定 status

📄PubMed studies (3)L2 · primary research & systematic reviews

DHEA in Elderly Women and DHEA or Testosterone in Elderly Men
PMID: 17050889 2006 RCT (double-blind) n = 144
Finding: The landmark 2-year Mayo Clinic RCT (Nair et al., NEJM) found DHEA replacement had no significant effect on body composition, peak VO2, muscle strength, insulin sensitivity or quality of life in elderly men or women with low DHEA-S. Only a minimal, inconsistent effect on bone mineral density was seen, far smaller than established osteoporosis therapies.
🟢 High quality Government Effect size: No physiologically relevant benefit on body composition, physical performance, insulin action or quality of life
View on PubMed
The effects of dehydroepiandrosterone (DHEA) supplementation on body composition and blood pressure: A meta-analysis of randomized clinical trials
PMID: 32745490 2020 統合分析
Finding: Pooled RCTs showed a small increase in lean body mass (+0.45 kg, 95% CI 0.15 to 0.75, p=0.004) and a small decrease in fat mass (-0.85%, 95% CI -1.18 to -0.51, p<0.001), but no change in body weight or BMI and a neutral effect on blood pressure. The magnitude is marginal and of debated clinical relevance.
Effect size: Lean mass +0.45 kg; fat mass -0.85%; body weight, BMI, BP NS
View on PubMed
Dehydroepiandrosterone supplementation in elderly men: a meta-analysis study of placebo-controlled trials
PMID: 23824417 2013 統合分析 n = 1,353
Finding: Across 25 placebo-controlled trials in elderly men (n=1353), DHEA was associated with a reduction in fat mass, but the association disappeared after adjustment for DHEA-related metabolite increases (total testosterone, estradiol). No associations were found between DHEA and lipid or glycemic metabolism, bone health, sexual function or quality of life.
Effect size: Fat mass reduction attenuated to non-significance after metabolite adjustment; no effect on metabolic, bone, sexual or QoL outcomes
View on PubMed

🏛️Regulatory & authoritative positionsL4/L5 · FDA / EMA / NIH ODS / Cochrane / Mayo …

L4a US FDA
Cautious
Intrarosa (prasterone) is the first FDA-approved product containing the active ingredient prasterone, also known as dehydroepiandrosterone (DHEA). source↗
L4b EU EFSA
Against
L4c UK NHS
Against
DHEA is classed as a prescription-only medicine in the UK and is also a Class C controlled drug. source↗
L4d TW TFDA / 衛福部
Against
DHEA（脫氫表雄酮）在台灣屬於藥品列管，不論劑量高低均以藥品管理，須由醫師開立處方；不得作為食品或膳食補充劑販售。 source↗
L4e WHO
Cautious
DHEA is included in the pharmacological class S1 'Anabolic Agents' as an Anabolic Androgenic Steroid, prohibited at all times (in and out of competition) under the World Anti-Doping Code. source↗
L5a NIH Office of Dietary Supplements
Cautious
L5b Mayo Clinic
Against
While taking DHEA supplements to maintain DHEA levels could in theory slow the aging process and improve well-being, thinking skills and body composition, research hasn't proved this to be true. There's little evidence to support antiaging claims. DHEA use can cause serious side effects. The risks of using this supplement might outweigh any benefits. Don't use DHEA if you're not in a clinical t… source↗
L5c Cleveland Clinic
Against
L5d Harvard Health
Against
L5e Specialty Society (condition-mapped)
Against
✓PMID 100% verifiedevery citation checked via NCBI Entrez
🔬3 PubMed studiesindependently re-checked by multiple sub-agents
engine_version: v1.0 claim_id: CLM-COND-aging-INT-dehydroepiandrosterone-001 繁體中文版 →