Orthodontic treatment can affect a patient's nutritional status due to changes in diet, chewing efficiency, and oral hygiene practices. Nutritional deficiencies can negatively impact the success of orthodontic treatment, as well as the overall health of the patient. Adequate protein, calcium, and vitamin D intake are important for optimal bone growth and development, which is essential for successful orthodontic treatment outcomes. Patients undergoing orthodontic treatment should also avoid foods that are high in sugar and carbohydrates, as these can increase the risk of tooth decay and gum disease. Good oral hygiene practices, including regular brushing and flossing, are essential for maintaining a healthy mouth during orthodontic treatment. Additionally, patients should be educated about the importance of a balanced diet and encouraged to seek the advice of a qualified nutritionist if necessary.