Thermogenesis is the generation or production of heat, the burning of calories through the physiological process i.e digestion of food right up to physical activity as it all produces heat.
Thermogenesis can be classified into 3 different types:
- Exercise-associated thermogenesis (EAT)
- Non-exercise-associated thermogenesis (NEAT)
- Diet- induced thermogenesis (DIT)
Exercise-associated thermogenesis (EAT) is the production of heat due to exercise. Non-exercise-associated thermogenesis (NEAT) this includes movements such as rubbing your eyes and fidgeting, these are called spontaneous physical activity (SPA) and are what causes NEAT. Diet- induced thermogenesis (DIT) is how many calories are burned due to heat through the in ingestion of food.
Thermogenesis can only be measured in a laboratory so we have to leave it out of the equation but it only accounts for 5% of your daily calories burned. Now we know we are going to leave thermogenesis out of the equation lets go back to nutrition for athletes.