Modern diets high in calories and low in nutrients can lead to metabolic disorders. Junk food is high in fat, salt, sugar and provides empty calories. An imbalance diet may cause malnutrition, obesity, and increased risk of diseases like diabetes, heart disease, and cancer. To avoid metabolic issues, one should eat a balanced diet with proteins, carbohydrates, fats, vitamins and minerals from whole foods and limit refined sugars and processed foods. Regular exercise is also important for maintaining metabolic health. Metabolic disorders occur due to abnormal chemical reactions in the body that disrupt the normal metabolic processes.