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According to the FAO, the average minimum daily energy requirement is approximately 8,400 kilojoules (2,000 kcal) per adult and 4,200 kilojoules (1,000 kcal) a child. [3] This data is presented in kilojoules, as most countries today use the SI unit kilojoules as their primary measurement for food energy intake, [ 4 ] with the exception of the ...
For an overall efficiency of 20%, one watt of mechanical power is equivalent to 18 kJ/h (4.3 kcal/h). For example, a manufacturer of rowing equipment shows calories released from "burning" food as four times the actual mechanical work, plus 1,300 kJ (300 kcal) per hour, [16] which amounts to about 20% efficiency at 250 watts of mechanical output.
kJ kJ 1.0 kJ (240 cal) ... Calorie multiples: calorie: Cal Cal The thermo-chemical calorie is the default definition. For others, see the full list. 1.0 ...
1.0 kcal IT (4.2 kJ) calorie (International Steam Table) cal-IT (g-cal-IT) cal IT: 1.0 ...
The USDA recommends a daily caloric intake of 2,700 and 2,100 kcal (11,300 and 8,800 kJ) for men and women (respectively) between 31 and 50, at a physical activity level equivalent to walking about 1.5 to 3 miles per day at 3 to 4 miles per hour in addition to the light physical activity associated with typical day-to-day life, [13] with the ...
1.0 kcal th (4.2 kJ) calorie (thermochemical) cal-th (g-cal-th) cal th: 1.0 ...
Beginning in October 1988, Gold dieted from 133 pounds to about 110 pounds on a medically supervised 500-calorie-a-day (2,100 kJ) diet, but still occasionally the scripts continued to include weight-based jokes at her expense.
The precise equivalence between calories and joules has varied over the years, but in thermochemistry and nutrition it is now generally assumed that one (small) calorie (thermochemical calorie) is equal to exactly 4.184 J, and therefore one kilocalorie (one large calorie) is 4184 J or 4.184 kJ.