gramcalorie

A gramcalorie, also known as a small calorie, is a unit of energy equal to one gram of isothermal caloric, the amount of heat required to raise the temperature of one gram of water by one degree Celsius at a constant pressure. It is commonly used in the field of nutrition to measure the energy content of food. One gramcalorie is approximately equal to 4.184 joules or 0.239 kilocalories. In the context of food, the term "calorie" often refers to a kilocalorie, which is equal to 1,000 gramcalories. Therefore, when discussing the caloric content of food, it is important to clarify whether the term "calorie" refers to a gramcalorie or a kilocalorie. The gramcalorie is a smaller unit and is less commonly used in everyday language, but it is still an important concept in the study of nutrition and metabolism.