DHEA – Hormone, Effects and Medical Uses
DHEA (dehydroepiandrosterone) is a natural hormone produced by the adrenal glands. It serves as a precursor to estrogen and testosterone and is widely used as a dietary supplement.
Things worth knowing about "Dhea"
DHEA (dehydroepiandrosterone) is a natural hormone produced by the adrenal glands. It serves as a precursor to estrogen and testosterone and is widely used as a dietary supplement.
What is DHEA?
DHEA (dehydroepiandrosterone) is a steroid hormone produced primarily by the adrenal cortex. It is one of the most abundant hormones in the human body and acts as a prohormone -- a precursor to the sex hormones estrogen and testosterone -- making it a key player in hormonal balance.
DHEA levels in the blood peak during a person´s twenties and thirties, then decline steadily with age. By the time a person reaches their seventies or eighties, DHEA levels may be only 10–20% of their youthful peak. This age-related decline has been linked to various aspects of the aging process.
Biological Functions
DHEA plays several important roles in the body:
- Precursor for the synthesis of estrogens and androgens (including testosterone)
- Modulation of immune system activity
- Influence on mood, cognitive function, and overall sense of well-being
- Possible role in regulating body fat composition and muscle mass
- Involvement in bone metabolism
Medical Uses
DHEA is used in both clinical medicine and as a dietary supplement across several contexts:
Adrenal Insufficiency
In individuals with adrenal insufficiency (e.g., Addison's disease), the body produces significantly less DHEA. Medically supervised DHEA replacement therapy may be prescribed in these cases to improve quality of life, mood, and sexual well-being.
Age-Related Hormonal Changes
Because DHEA declines with age, it is frequently discussed in the context of anti-aging medicine. However, clinical studies have produced mixed results regarding any broad anti-aging benefit.
Vaginal Atrophy
A low-dose, intravaginal DHEA formulation (prasterone) has been approved in several countries for the treatment of vulvovaginal atrophy in postmenopausal women.
Fertility and Menopause
In reproductive medicine, DHEA is sometimes used as a supplementary treatment to support egg quality in women with diminished ovarian reserve. The evidence base for this use remains under investigation.
Mechanism of Action
DHEA acts in the body both directly -- through its own receptors -- and indirectly, by being converted in the liver, adipose tissue, and other peripheral tissues into estrogens (e.g., estradiol) and androgens (e.g., testosterone). This tissue-specific conversion is known as intracrine action and allows DHEA to exert sex hormone effects locally within various target tissues.
Dosage and Administration
DHEA is available without a prescription as a dietary supplement in some countries (e.g., the United States), while in others (e.g., Germany) it is prescription-only or not approved for over-the-counter use. Typical supplementation doses range from 25 mg to 100 mg per day, though the optimal dose varies considerably between individuals and should be determined in consultation with a healthcare provider.
Self-supplementation without medical supervision is not recommended, as DHEA is converted into active sex hormones and can produce significant hormonal effects throughout the body.
Side Effects and Risks
Potential side effects of DHEA supplementation include:
- Acne and oily skin
- Hair loss (androgenic)
- Mood changes or irritability
- Increased aggression at high doses
- Possible stimulation of hormone-sensitive tumors (e.g., breast or prostate cancer)
- Changes in blood lipid levels
Individuals with hormone-sensitive conditions, liver or kidney disease, and those who are pregnant or breastfeeding should avoid DHEA supplementation.
References
- Baulieu EE et al. - Dehydroepiandrosterone (DHEA), DHEA sulfate, and aging. Proceedings of the National Academy of Sciences, 2000.
- Labrie F - DHEA, important source of sex steroids in men and even more in women. Progress in Brain Research, 2010.
- Arlt W - Dehydroepiandrosterone and ageing. Best Practice and Research Clinical Endocrinology and Metabolism, 2004.
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