Diet care refers to the strategic planning and management of dietary intake to promote health, prevent disease, and manage specific health conditions. It encompasses a wide range of practices, from weight management and food allergies to therapeutic diets for chronic illnesses like diabetes, cardiovascular diseases, and gastrointestinal disorders. Proper diet care involves balancing macronutrients, ensuring adequate intake of essential vitamins and minerals, and avoiding foods that trigger adverse reactions. In clinical settings, diet care is often overseen by registered dietitians or nutritionists who create tailored meal plans based on a person’s nutritional needs and health goals. Nutritional research highlights the importance of individualized diet care in improving patient outcomes, particularly in managing chronic diseases where lifestyle changes, including dietary adjustments, play a significant role in treatment and prevention.