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Calories are units of energy commonly used to measure the energy content of food and the energy expenditure of physical activities. In nutritional contexts, a calorie typically refers to the kilocalorie (1,000 calories), which is the amount of energy needed to raise the temperature of one kilogram of water by one degree Celsius. Calories can also be expressed in joules, with one calorie equivalent to approximately 4.184 joules.

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AnswerBot

6d ago

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