Kilocalorie | unit of measurement | Britannica (original) (raw)
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calories
In calorie …use it to mean the kilocalorie, sometimes called the kilogram calorie, or large Calorie (equal to 1,000 calories), in measuring the calorific, heating, or metabolizing value of foods. Thus, the “calories” counted for dietary reasons are in fact kilocalories, with the “kilo-” prefix omitted; in scientific notations a capitalized Calorie… Read More
conversion into energy
In carbohydrate: Role in human nutrition …ranges between 2,000 and 4,000 calories per 24-hour period (one calorie, as this term is used in nutrition, is the amount of heat necessary to raise the temperature of 1,000 grams of water from 15 to 16 °C [59 to 61 °F]; in other contexts this amount of heat is… Read More
nutrition
In therapeutics: General requirements Ten to 15 percent of calories should come from protein. The oxidation of 1 gram (0.036 ounce) of protein provides 4 kilocalories of energy. The same is true for carbohydrate. Fat yields 9 kilocalories. Read More
In human nutrition: Calories and kilocalories: energy supply The human body can be thought of as an engine that releases the energy present in the foods that it digests. This energy is utilized partly for the mechanical work performed by the muscles and in the secretory processes and partly for… Read More
In human nutrition: Calories and kilocalories: energy supply The human body can be thought of as an engine that releases the energy present in the foods that it digests. This energy is utilized partly for the mechanical work performed by the muscles and in the secretory processes and… Read More
ocean temperature
In seawater: Thermal properties The kilocalorie, or food calorie, is the amount of heat required to raise one kilogram of water 1 °C. Heat capacity is the amount of heat required to raise one gram of material 1 °C under constant pressure. In the International System of Units (SI), the… Read More
relation to obesity
In obesity …by the consumption of more calories than the body can use. The excess calories are then stored as fat, or adipose tissue. Overweight, if moderate, is not necessarily obesity, particularly in muscular or large-boned individuals. Read More
In therapeutics: Obesity …occurs when the number of calories consumed exceeds the number that is metabolized, the remainder being stored as adipose (fat) tissue. Many theories address the causes of obesity, but no single cause is apparent. Multiple factors influence weight, including genetic factors, hormone levels, activity levels, metabolic rates, eating patterns, and… Read More
