¨Energy is measured in kilocalories  (kcal) or kilojoules (kJ) Nutrient Kcal/kJ Protein Carbohydrate Fat Alcohol 4kcal/17kJ 4kcal/17kJ 9kcal/37kJ 7kcal/29kJ Outline the factors affecting energy requirements 1.Age Young people require more energy as they are growing rapidly & tend to be very active.  As people get older energy requirements decrease, together with their BMR (Basal Metabolic … Continue reading →