What is the term for the energy required during the digestive process of food?

The term for the energy required during the digestive process of food is known as the thermic effect of food (TEF). This concept refers to the increase in metabolic rate after ingestion of food, predominantly due to the energy required for digestion, absorption, and metabolism of the nutrients contained in the food. The thermic effect of food typically accounts for a small percentage of total daily energy expenditure but can vary depending on the composition of the diet. For instance, protein has a higher thermic effect compared to carbohydrates and fats, as it requires more energy for processing.

Understanding this concept is vital for nutrition coaching and can influence dietary recommendations, especially in contexts aiming for weight management or muscle gain, where the thermic effect of different macronutrients is taken into consideration to optimize energy balance.