kilocalorie

…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…

…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…

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.

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…

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…

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…

…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…