DHEA

The available research on DHEA as a supplement covers a broad range of potential applications, including bone health, body composition, hormonal support, and aging-related decline. The body of literature provided spans narrative reviews, one systematic review on a related compound (7-keto-DHEA), and one meta-analysis focused on bone mineral density. However, the majority of sources are review articles with moderate quality ratings, and critically, the structured data fields — including specific populations studied, sample sizes, key findings, and limitations — are absent across all 15 studies. This severely limits the strength of any conclusions that can be drawn from this particular evidence base. The strongest individual study type present is a meta-analysis of randomized placebo-controlled trials examining DHEA's effect on bone mineral density in healthy adults, which represents the most methodologically rigorous evidence available here. A systematic review also examined the related metabolite 7-keto-DHEA and body weight. Several reviews address DHEA in the context of adrenal aging (adrenopause), its pharmacological properties, its role in female androgen physiology, and its use in assisted reproduction (IVF). One review specifically addresses DHEA's relevance in athletic and doping contexts. Despite this breadth of topics covered, because no quantitative findings or population details were extractable from any of the provided articles, all 13 expert claims assessed were rated as having insufficient evidence support. Key limitations of this evidence base are substantial. Most sources are review articles, which synthesize existing data but do not generate new evidence, and their conclusions cannot be verified without access to the underlying data. The absence of extractable findings, sample sizes, and population descriptors means it is impossible to determine whether results apply to specific groups such as older adults, women, athletes, or those with hormonal deficiencies. Furthermore, DHEA functions as a precursor to both testosterone and estrogen, meaning its effects are likely highly context-dependent — varying by sex, age, baseline hormone levels, and dosage — nuances that cannot be assessed from the information available. What remains unknown includes optimal dosing, long-term safety, and which populations, if any, derive meaningful clinical benefit.