Nutritional%20energy%20of%20food%20is%20expressed%20in%20the%20form%20of%3F

Answer-%20Nutritional%20energy%20of%20food%20is%20expressed%20in%20either%20calories%20or%20joules.%20A%20calorie%20is%20the%20amount%20of%20energy%20required%20at%20one%20atmosphere%20of%20pressure%20to%20raise%20the%20temperature%20of%201%20g%20of%20water%20from%2014.5%B0C%20to%2015.5%B0C.%20The%20preferred%20unit%20of%20the%20International%20System%20of%20Units%20%28SI%29%2C%20the%20joule%20%28J%29%2C%20is%20used%20alternatively.%20One%20calorie%20is%20equal%20to%204.184%20J.

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