标准是100克，44卡路里。
橘子的含水量较高，热量在水果中属于中下水平，其维生素C含量并非很高，远低于猕猴桃、无花果等水果，适宜减肥期间食用。
卡路里（简称卡，缩写为cal），由英文Calorie音译而来，其定义为在1个大气压下，将1克水提升1摄氏度所需要的热量；卡路里（calorie）是能量单位，现在仍被广泛使用在营养计量和健身手册上，国际标准的能量单位是焦耳（joule）。
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