Dietary thermogenesis refers to the process by which the body generates heat through the digestion, absorption, and metabolism of food. This process accounts for a portion of the total energy expenditure and is influenced by the type and amount of food consumed. Foods high in protein typically require more energy to digest compared to fats and carbohydrates, leading to a higher thermogenic effect. The thermogenic effect of food can vary based on individual factors such as metabolism, age, and body composition. Understanding dietary thermogenesis can help in managing weight and optimizing energy balance, as it highlights the importance of food choices in overall energy expenditure.