Normal Aldosterone Levels
May 22, 2022
Source: Cainiu Health
Dr. Li Man
Introduction
The normal upright (standing) plasma aldosterone concentration typically ranges from 65 to 295 ng/L, whereas the normal supine (lying down) level falls between 60 and 175 ng/L. Normal reference ranges for aldosterone vary depending on the assay method used. Therefore, it is essential to compare the test result with the reference range provided alongside the report to determine whether the value is low or high. Physiologically elevated aldosterone levels may occur with low dietary sodium intake, while high sodium intake can lead to a physiological decrease.
In daily life, many people seek to better understand their health status by verifying whether certain laboratory values fall within normal ranges—thus enabling early prevention and treatment. So, what are the normal aldosterone levels?
Normal Aldosterone Levels
Normal aldosterone levels vary depending on body position, dietary intake, and medication use, and must therefore be interpreted in context. Under standard dietary conditions, after fasting for more than 10 hours, morning aldosterone measurements yield normal reference ranges of approximately 65–295 ng/L in the upright (standing) position and 60–175 ng/L in the supine (lying down) position. Importantly, normal values differ according to the assay method employed; thus, it is essential to compare your test result against the reference range provided alongside the report to determine whether the value is abnormally low or high. Physiologically, aldosterone levels increase with low-sodium diets and decrease with high-sodium diets.
Aldosterone is a hormone critical for regulating blood volume and maintaining water and electrolyte balance. Its secretion is primarily controlled by the renin-angiotensin system: a reduction in extracellular fluid volume stimulates juxtaglomerular cells in the kidney to release renin, which converts angiotensinogen into angiotensin I; this is further converted to angiotensin II, which in turn stimulates the zona glomerulosa of the adrenal cortex to synthesize and secrete aldosterone—thereby enhancing sodium and water reabsorption in the kidneys. Conversely, an increase in extracellular fluid volume triggers opposing mechanisms that suppress aldosterone secretion.
In daily life, avoid spicy and irritating foods, drink plenty of water to support metabolic function, and engage in moderate outdoor physical activity to strengthen immunity. We hope this information is helpful to you!
