Adrenal extract is made from the dried, ground adrenal glands of livestock — most often cattle — and contains a range of bioactive compounds that mirror or support what your own adrenal glands produce. It comes in two main forms: whole adrenal (which includes the inner medulla and outer cortex) and adrenal cortex extract (just the outer layer, without stimulating adrenaline-like compounds). Practitioners in integrative and functional medicine use it to support people whose adrenal glands seem to be underperforming due to prolonged stress, illness, or burnout.

The adrenal glands sit on top of the kidneys and produce hormones like cortisol, DHEA, and adrenaline that regulate your energy, immune response, and stress reaction. When these glands are under chronic strain, output can drop — leaving you exhausted, foggy, and unable to handle stress well. Adrenal extract is thought to supply raw biological material and low-level hormonal building blocks that help the glands repair and function more normally, essentially giving an overworked system a helping hand.

Adrenal cortex extract is the most commonly recommended form for daytime use because it avoids the stimulating adrenaline compounds. Whole adrenal glandulars are sometimes used in lower doses for broader support. Both are typically taken as capsules or tablets; liquid extracts exist but are less common. Quality varies significantly by brand — sourcing from grass-fed, hormone-free cattle is preferred.

• Chronic fatigue and low energy
• Burnout and adrenal exhaustion
• Low stress tolerance
• Brain fog
• Morning fatigue and difficulty waking
• Low blood pressure (orthostatic symptoms)
• Immune system support
• Post-illness recovery
• Salt and sugar cravings

• Worsening adrenal insufficiency in subclinical cases with early intervention

Adrenal extract is not found in food — you cannot get a therapeutic dose of adrenal glandular material through diet. However, you can support your adrenal glands nutritionally with foods rich in vitamin C (bell peppers, citrus, kiwi), which the adrenals use in large amounts. Magnesium-rich foods (leafy greens, pumpkin seeds, dark chocolate) help calm the stress response. B vitamins from eggs, meat, and legumes fuel adrenal hormone production. Healthy fats from avocado, olive oil, and oily fish provide cholesterol-based raw material for cortisol and DHEA synthesis. Reducing caffeine, alcohol, and refined sugar gives the adrenal glands relief from the constant stimulation that contributes to exhaustion. A diet that keeps blood sugar steady — emphasizing protein, fiber, and healthy fats at each meal — is one of the most impactful dietary strategies for adrenal recovery.

• Overstimulation, jitteriness, or anxiety (especially with whole adrenal products)
• Headache
• Increased heart rate or palpitations
• Worsening fatigue if dosed too high or too late in the day
• Insomnia if taken in the afternoon or evening
• Nausea or digestive upset
• Hormonal imbalance with prolonged high-dose use
• Suppression of the body's own adrenal output with excessive long-term use (theoretical)

• Recommended daily: Adrenal cortex extract: 200–500 mg per day, divided into morning and midday doses. Whole adrenal glandular: 50–200 mg per day. Doses vary significantly by product concentration — follow the manufacturer's guidelines and work with a practitioner.
• Best time of day: Morning (with or before breakfast) and midday if a split dose is used. Avoid afternoon or evening dosing as it may disrupt sleep by elevating cortisol when it should be declining.
• With or without food: Best taken with a small amount of food to minimize nausea, especially when starting. Some practitioners recommend taking on an empty stomach for faster absorption, but food tolerance varies.
• Time to effect: Initial energy improvements often reported within 1–2 weeks; fuller adrenal recovery support typically requires 2–6 months of consistent use.
• How long to take it: Typically used for 3–6 months as a recovery course, then reassessed. Not intended for indefinite daily use. Gradual tapering is recommended rather than abrupt discontinuation after extended use. Work with a practitioner to monitor adrenal function and adjust accordingly.