Linked from
The 8 pages that link to Calorie, each with the reason it gives.
Energy balanceRelated: Food energy and expenditure are commonly expressed in this unit.
JouleCompared with: Food energy is commonly labeled in kilocalories rather than joules.
FoodRelated: Food energy is commonly reported in Calories, linking intake to energy use.
British thermal unitRelated: Calorie-based conventions help distinguish thermochemical Btu values.