Clinical nutrition is a field of healthcare that focuses on the role of diet and nutrition in the prevention and treatment of diseases. It involves assessing a patient's nutritional status, identifying dietary needs, and creating personalized meal plans to support overall health. Professionals in clinical nutrition, such as registered dietitians, work closely with patients to manage conditions like diabetes, heart disease, and obesity. They provide education on healthy eating habits and help individuals make informed food choices to improve their well-being and quality of life.