Introduction
Dehydroepiandrosterone Sulfate (DHEA-S) is a critical biomarker in the Healthspan Assessment, serving as a key hormone precursor that supports energy, mood, and overall vitality. If you’re experiencing fatigue, low libido, mood imbalances, or signs of accelerated aging, your DHEA-S levels could provide essential insights. In this chapter, we’ll explore DHEA-S in depth: what it does, why it’s important, optimal ranges, factors that influence it, associated health conditions, and how to optimize it using a functional medicine approach. We’ll also dive into the nutritional biochemistry behind DHEA-S, its role in the 12 hallmarks of aging, key physiological axes, and practical steps you can take to feel vibrant and resilient.
What Is DHEA-S and Its Physiological Role?
DHEA-S is a sulfated form of dehydroepiandrosterone, a steroid hormone produced primarily by the adrenal glands and, to a lesser extent, the ovaries, testes, and brain. It acts as a reservoir for DHEA, which is a precursor to sex hormones like testosterone and estrogen, influencing reproductive health, muscle strength, and libido [1]. DHEA-S is more stable and has a longer half-life than DHEA, making it a reliable marker of adrenal function. It supports energy production, immune function, and stress response by modulating cortisol levels and acting as a neurosteroid in the brain to enhance mood and cognition. Low DHEA-S levels can lead to fatigue, reduced libido, and weakened immunity, while high levels may indicate adrenal overstimulation or, rarely, adrenal tumors [2]. DHEA-S works closely with cortisol, sex hormones, and other adrenal markers to maintain hormonal balance and overall health.
Clinical Significance: Why DHEA-S Matters
DHEA-S is a crucial marker because it reflects adrenal health and hormonal balance, which are essential for energy, mood, and resilience. Low DHEA-S is linked to adrenal insufficiency, chronic fatigue, or accelerated aging, causing symptoms like low energy, poor stress tolerance, or muscle weakness. High DHEA-S may suggest adrenal hyperactivity, PCOS (in women), or, rarely, adrenal tumors, leading to symptoms like acne or excessive hair growth. DHEA-S must be interpreted alongside cortisol, testosterone, estradiol, and ACTH to understand the root cause of symptoms. For patients, understanding DHEA-S can explain symptoms like fatigue, low libido, or mood swings and guide personalized strategies to restore balance [3].
Optimal Ranges for DHEA-S
In functional medicine, we focus on optimal DHEA-S ranges to support vibrant health, not just “normal” ranges to avoid disease. For women, optimal ranges are 70–250 µg/dL (ages 20–39) and 40–200 µg/dL (ages 40–60), and for men, 100–400 µg/dL (ages 20–39) and 60–300 µg/dL (ages 40–60), with functional medicine often preferring mid-to-upper ranges for energy and vitality [4]. Levels naturally decline with age. For children, consult a pediatric specialist, as ranges vary by age and puberty stage. Standard lab ranges are broader, but functional medicine targets tighter ranges for peak health. Always review results with a healthcare provider, as context, such as cortisol or sex hormone levels, is critical for accurate interpretation.
Factors Affecting DHEA-S Levels
Your DHEA-S levels are influenced by diet, lifestyle, and health conditions. Diets low in nutrients like zinc, magnesium, or healthy fats can impair adrenal hormone production, lowering DHEA-S, while nutrient-rich diets with antioxidants support adrenal function. Lifestyle factors like chronic stress, poor sleep, or excessive exercise can overstimulate the adrenals, initially raising DHEA-S but eventually lowering it due to adrenal fatigue. Obesity or insulin resistance can increase DHEA-S by stimulating adrenal activity. Health conditions, such as gut dysbiosis or liver dysfunction, impair hormone metabolism, affecting DHEA-S levels. Adrenal disorders, like Addison’s disease, lower DHEA-S, while PCOS or adrenal hyperplasia can elevate it. Medications like corticosteroids suppress DHEA-S production, while DHEA supplements can increase levels, though they should be used cautiously [5].
Conditions Associated with Abnormal DHEA-S Levels
Abnormal DHEA-S levels can signal underlying health issues. Low DHEA-S is linked to adrenal insufficiency, chronic fatigue syndrome, or accelerated aging, causing fatigue, low libido, and poor stress resilience. It’s also associated with autoimmune diseases like lupus or rheumatoid arthritis due to weakened immune modulation. High DHEA-S may indicate PCOS, adrenal hyperplasia, or, rarely, adrenal tumors, leading to symptoms like hirsutism (excess hair growth), acne, or irregular periods in women. Chronic gut issues, such as dysbiosis or leaky gut, can disrupt hormone metabolism, indirectly affecting DHEA-S, while liver dysfunction impairs DHEA-S clearance. Chronic stress or hypothalamic-pituitary-adrenal (HPA) axis dysfunction can lower DHEA-S by exhausting adrenal reserves [6].
Nutritional Biochemistry of DHEA-S
DHEA-S’s biochemistry centers on its role as a precursor to sex hormones and its regulation within the HPA axis. Synthesized from cholesterol in the adrenal glands via enzymes like CYP17A1, DHEA is sulfated to form DHEA-S, which is stored and converted to testosterone or estrogen as needed [7]. The liver and gut play key roles in metabolizing and excreting DHEA-S. Gut health is critical: dysbiosis or low fiber intake impairs hormone clearance, potentially elevating DHEA-S, while a healthy gut microbiome supports balanced metabolism. Key nutrients influence DHEA-S production: zinc and vitamin C are essential for adrenal function; magnesium supports HPA axis regulation; omega-3 fatty acids reduce inflammation, stabilizing adrenal output; and vitamin D enhances hormone receptor function, indirectly affecting DHEA-S. Chronic stress increases cortisol at the expense of DHEA-S, depleting levels, while insulin resistance or obesity can increase adrenal activity, raising DHEA-S. Medications like corticosteroids suppress adrenal hormone production, lowering DHEA-S, while liver dysfunction can impair clearance, elevating levels [8].
DHEA-S and the 12 Hallmarks of Aging
These are the 12 hallmarks of aging, which I like to relate to the mechanisms of chronic disease and poor cellular function. DHEA-S imbalances contribute to several of these hallmarks, driving long-term health decline. Low DHEA-S impairs DNA repair by reducing hormone-driven gene expression, increasing mutation risk and contributing to genomic instability. It also disrupts epigenetic regulation, leading to epigenetic alterations. Low DHEA-S impairs mitochondrial function in adrenal and brain cells, contributing to mitochondrial dysfunction, while high levels from adrenal overstimulation can cause oxidative stress. Deficiency accelerates cell turnover in hormone-sensitive tissues, contributing to telomere attrition. Low DHEA-S impairs protein homeostasis, leading to proteostasis loss. It disrupts nutrient sensing by affecting insulin and metabolic pathways. Low DHEA-S induces cellular senescence in adrenal or reproductive cells, while high levels may promote abnormal cell growth. Deficiency impairs stem cell function, contributing to stem cell exhaustion. Imbalanced DHEA-S disrupts cytokine signaling, leading to altered intercellular communication. Low levels weaken muscle and bone matrix, contributing to tissue matrix degradation. Gut dysbiosis impairs hormone metabolism, contributing to microbiome dysbiosis, while low DHEA-S weakens immune cells, and high levels fuel inflammation, tied to immune dysfunction [9]. Optimizing DHEA-S helps mitigate these hallmarks, supporting long-term health.
DHEA-S and Key Physiological Axes
In functional medicine, we view health through interconnected systems or “axes” that influence one another. DHEA-S plays a significant role in the gut-hormone axis and the gut-brain axis. The gut-hormone axis involves the gut and liver metabolizing DHEA-S and its downstream hormones (testosterone, estrogen). Gut dysbiosis or low fiber intake impairs hormone clearance, potentially elevating DHEA-S, while liver dysfunction reduces detoxification, affecting DHEA-S regulation [10]. Supporting the gut-hormone axis involves healing the gut with probiotics, prebiotics, and fiber-rich foods while supporting liver detoxification with cruciferous vegetables or milk thistle. The gut-brain axis links gut health to adrenal and neurological function, as DHEA-S acts as a neurosteroid supporting mood and cognition. Poor gut health reduces nutrient absorption, impacting adrenal DHEA-S production and contributing to fatigue or mood swings. Supporting this axis involves optimizing gut health with a nutrient-dense diet and managing stress to stabilize DHEA-S for adrenal and brain health [11]. Addressing these axes through diet, supplements, and lifestyle can optimize DHEA-S and overall health.Functional Medicine Solutions for DHEA-S
For low DHEA-S, focus on nutrient-dense foods like eggs, fatty fish, and nuts to support adrenal health. Consider adaptogens like ashwagandha or rhodiola (300–600 mg daily) under medical supervision to balance the HPA axis. Test and treat gut dysbiosis or liver dysfunction to improve hormone metabolism. Reduce stress with mindfulness or yoga to support adrenal function. For high DHEA-S, increase fiber-rich foods like broccoli and flaxseeds to promote hormone excretion. Address insulin resistance with a low-glycemic diet and exercise. Use supplements like omega-3s or DIM (diindolylmethane) under medical supervision to support detoxification. Support gut health with probiotics and anti-inflammatory foods to balance the microbiome. Test for adrenal or hormonal disorders like PCOS to identify underlying causes [12].
For low DHEA-S, focus on nutrient-dense foods like eggs, fatty fish, and nuts to support adrenal health. Consider adaptogens like ashwagandha or rhodiola (300–600 mg daily) under medical supervision to balance the HPA axis. Test and treat gut dysbiosis or liver dysfunction to improve hormone metabolism. Reduce stress with mindfulness or yoga to support adrenal function. For high DHEA-S, increase fiber-rich foods like broccoli and flaxseeds to promote hormone excretion. Address insulin resistance with a low-glycemic diet and exercise. Use supplements like omega-3s or DIM (diindolylmethane) under medical supervision to support detoxification. Support gut health with probiotics and anti-inflammatory foods to balance the microbiome. Test for adrenal or hormonal disorders like PCOS to identify underlying causes [12].
Practical Applications: What You Can Do Today
Take control of your DHEA-S levels by requesting a DHEA-S test as part of the Vibrant Wellness Healthspan Assessment, alongside cortisol, testosterone, and estradiol for context. Optimize your diet with a meal like grilled salmon with walnuts and kale this week to support adrenal health. If DHEA-S is low, discuss adaptogens or DHEA supplementation (5–25 mg daily) with your doctor and focus on stress reduction. Track symptoms like fatigue, low libido, or mood swings in a journal to monitor improvements. If DHEA-S is high, cut processed foods, add cruciferous vegetables, and try 10 minutes of daily mindfulness to reduce adrenal overstimulation. Retest DHEA-S every 3–6 months to track progress.
Summary
DHEA-S is a critical hormone precursor for energy, resilience, and overall wellness, influencing hormonal balance, mood, and long-term health. By understanding its role, nutritional biochemistry, connection to the 12 hallmarks of aging, and key physiological axes, you can take targeted steps to optimize it. Whether you’re addressing low DHEA-S to boost vitality or managing high levels to reduce hormonal imbalances, functional medicine offers personalized solutions. Start with small changes like adjusting your diet or tracking symptoms, and work with your healthcare provider for a tailored plan. In the next chapter, we’ll explore the next biomarker in your health journey.
References
[1] Labrie, F., et al. (1997). DHEA and its transformation into androgens and estrogens in peripheral target tissues: Intracrinology. Frontiers in Neuroendocrinology, 18(2), 185–213.
[2] Arlt, W. (2004). Dehydroepiandrosterone and ageing. Best Practice & Research Clinical Endocrinology & Metabolism, 18(3), 363–380.
[3] Kroboth, P. D., et al. (1999). DHEA and DHEA-S: A review. Journal of Clinical Pharmacology, 39(4), 327–348.
[4] Gottfried, S. (2013). The Hormone Cure. Scribner.
[5] Allolio, B., & Arlt, W. (2002). DHEA treatment: Myth or reality? Trends in Endocrinology & Metabolism, 13(7), 288–294.
[6] Nestler, J. E. (1997). DHEA: A coming of age. Annals of the New York Academy of Sciences, 774, 1–10.
[7] Labrie, F. (2010). DHEA, important source of sex steroids in men and even more in women. Progress in Brain Research, 182, 97–148.
[8] Hodges, R. E., & Minich, D. M. (2015). Modulation of metabolic detoxification pathways using foods and food-derived components. Journal of Nutrition and Metabolism, 2015, 760689.
[9] López-Otín, C., et al. (2013). The hallmarks of aging. Cell, 153(6), 1194–1217.
[10] Baker, J. M., et al. (2017). Estrogen-gut microbiome axis: Physiological and clinical implications. Maturitas, 103, 45–53.
[11] Galland, L. (2014). The gut microbiome and the brain. Journal of Medicinal Food, 17(12), 1261–1272.
[12] Kharrazian, D. (2013). Why Do I Still Have Thyroid Symptoms? When My Lab Tests Are Normal. Elephant Press.
[2] Arlt, W. (2004). Dehydroepiandrosterone and ageing. Best Practice & Research Clinical Endocrinology & Metabolism, 18(3), 363–380.
[3] Kroboth, P. D., et al. (1999). DHEA and DHEA-S: A review. Journal of Clinical Pharmacology, 39(4), 327–348.
[4] Gottfried, S. (2013). The Hormone Cure. Scribner.
[5] Allolio, B., & Arlt, W. (2002). DHEA treatment: Myth or reality? Trends in Endocrinology & Metabolism, 13(7), 288–294.
[6] Nestler, J. E. (1997). DHEA: A coming of age. Annals of the New York Academy of Sciences, 774, 1–10.
[7] Labrie, F. (2010). DHEA, important source of sex steroids in men and even more in women. Progress in Brain Research, 182, 97–148.
[8] Hodges, R. E., & Minich, D. M. (2015). Modulation of metabolic detoxification pathways using foods and food-derived components. Journal of Nutrition and Metabolism, 2015, 760689.
[9] López-Otín, C., et al. (2013). The hallmarks of aging. Cell, 153(6), 1194–1217.
[10] Baker, J. M., et al. (2017). Estrogen-gut microbiome axis: Physiological and clinical implications. Maturitas, 103, 45–53.
[11] Galland, L. (2014). The gut microbiome and the brain. Journal of Medicinal Food, 17(12), 1261–1272.
[12] Kharrazian, D. (2013). Why Do I Still Have Thyroid Symptoms? When My Lab Tests Are Normal. Elephant Press.
