Adrenal insufficiency is a serious condition in which the adrenal glands are unable to produce the hormones your body needs to function. Caffeine may stimulate the production of some of these hormones in healthy adrenals but by itself does not cause or affect primary or secondary adrenal insufficiency. However, taking a break from the stimulating effective of caffeine may contribute to general adrenal health.
Adrenal Gland Function
The adrenals are small glands on the upper edge of each kidney. Each adrenal gland has two parts -- the adrenal cortex, which produces the steroid cortisol to raise blood sugar, control inflammation, provoke metabolism and fuel your muscles, and the adrenal medulla, which secretes epinephrine and norepinephrine. Epinephrine and norepinephrine are also known as adrenaline and noradrenaline, chemicals that give you a rush of energy and alertness in response to stress or excitement. The adrenal glands also produce aldosterone, a hormone that helps maintain blood pressure.
Adrenal Insufficiency
There are two potential causes of adrenal insufficiency. Primary adrenal insufficiency, or Addison’s disease, results from damage or trauma to the adrenal glands that keeps them from producing enough cortisol and aldosterone. Autoimmune disorders, tuberculosis, chronic infections or cancer can cause this type of malfunction. Secondary adrenal insufficiency is triggered when the brain’s pituitary gland stops producing enough of the hormone that tells the adrenals to release cortisol. Without this signal, cortisol levels drop and the adrenal glands shrink. Caffeine does not cause either primary or secondary adrenal insufficiency.
Caffeine
The central nervous system stimulant caffeine occurs naturally in cocoa beans, coffee beans, tea leaves and the kola nut. It is also added to some foods and medications and is widely consumed in chocolate, coffee, tea and colas. Moderate amounts of caffeine are probably safe for most people. Dr. Sheldon Sheps of MayoClinic.com points out that caffeine may stimulate the adrenal glands to produce more epinephrine, increasing blood pressure. However, there is no scientific evidence that caffeine consumption leads to true adrenal insufficiency.
Support for Adrenal Function
If you believe you may suffer from adrenal insufficiency, see a medical doctor for diagnosis. Treatment may include medication and hormone supplements. Iyengar yoga instructor Roger Cole recommends supporting depleted adrenals by allowing them to rest. He recommends discouraging the body’s production of epinephrine by avoiding stimulants like caffeine and practicing soothing yoga postures such as viparita kurani – legs-up-the-wall pose – and corpse pose. Unfortunately, these practices alone will not provide adequate treatment for true adrenal insufficiency.
References
- Medline Plus: Adrenal Glands
- Medline Plus: Caffeine in the Diet
- National Endocrine and Metabolic Diseases Information Service: Adrenal Insufficiency and Addison’s Disease
- MayoClinic.com; Addison’s Disease; Todd B. Nippoldt; 2011
- "Yoga Journal"; Treating Adrenal Exhaustion; Roger Cole
- MayoClinic.com; Expert Answers: How Does Caffeine Affect Blood Pressure?; Sheldon G. Sheps; 2009
