| هذه النسبة اعتمدتها لجنة التسميات للاتحاد الدولي لعلوم التغذية.<ref>{{استشهاد ويب |مسار=http://www.fao.org/docrep/meeting/0093/ae906e/ae906e17.htm |مؤلف=FAO |وصلة مؤلف=FAO |عنوان=The adoption of joules as units of energy |سنة=1971 |اقتباس=While the nutritional calorie has not been defined, basically it is the thermochemical calorie. The standards used in calorimetric work in nutrition is ultimately the heat of combustion of an internationally graded standard [[حمض البنزويك]]. This is primarily expressed as joules per gramme mole and secondarily as thermochemical calories per mole derived by dividing by 4.182, a factor which has been approved by the Committee on Nomenclature of the IUNS.| مسار أرشيف = https://web.archive.org/web/20181007205406/http://www.fao.org:80/docrep/meeting/009/ae906e/ae906e17.htm | تاريخ أرشيف = 7 أكتوبر 2018 }} </ref>
