A metabolic disorder is a condition that affects the body's ability to convert food into energy. This can happen due to problems with enzymes, hormones, or other substances that help in the metabolic process. Common examples include diabetes, where the body struggles to manage blood sugar levels, and hypothyroidism, which affects how the body uses energy. These disorders can lead to various health issues, including weight gain, fatigue, and increased risk of other diseases. Treatment often involves lifestyle changes, such as diet and exercise, and sometimes medication to help manage symptoms and improve overall health.