Dietary interventions refer to specific changes made to a person's eating habits to improve health or manage medical conditions. These interventions can include altering the types of foods consumed, adjusting portion sizes, or following specific dietary patterns, such as the Mediterranean diet or DASH diet. Such interventions are often used to address issues like obesity, diabetes, or heart disease. They may involve working with healthcare professionals, such as dietitians or nutritionists, to create personalized meal plans that promote better nutrition and overall well-being.