kcalgram
kcalgram is a unit of energy. It is equivalent to one kilocalorie, often referred to as a Calorie (with a capital C), which is the amount of heat energy required to raise the temperature of one kilogram of water by one degree Celsius. This unit is commonly used in nutrition and dietetics to express the energy content of food and the energy expenditure of the human body. One kilocalorie is equal to approximately 4,184 joules, the standard unit of energy in the International System of Units. The kcalgram is a practical measure for everyday understanding of energy balance in relation to food intake and physical activity.