A metabolic disorder refers to a condition that disrupts the body's ability to convert food into energy due to issues with metabolic processes. These disorders can lead to abnormal levels of substances in the blood, affecting overall health. Examples include diabetes, in which insulin regulation is impaired, and hypothyroidism, where metabolism slows down due to insufficient thyroid hormone. Symptoms vary widely and may include fatigue, weight changes, and cardiovascular issues. Early diagnosis and management through diet, exercise, or medication are essential for health maintenance.