Carnitine (Free, Esters, Total)

Carnitine is a compound essential for transporting fatty acids into mitochondria, the energy-producing centers of your cells. Carnitine esters are the active form of carnitine involved in fatty acid metabolism and energy production. This test measures esterified carnitine levels, which reflect carnitine status and energy metabolism. Low levels may indicate carnitine deficiency, malnutrition, kidney disease, or mitochondrial disorders, potentially causing fatigue and muscle weakness. This test is particularly relevant for individuals with metabolic concerns or certain genetic conditions.