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The calorie is a unit of energy that originated from the caloric theory of heat. [1] [2] The large calorie, food calorie, dietary calorie, or kilogram calorie is defined as the amount of heat needed to raise the temperature of one liter of water by one degree Celsius (or one kelvin ). [1] [3] The small calorie or gram calorie is defined as the ...
- Calorie (Disambiguation)
A calorie can be any of two units of heat or food energy...
- Dieting
Dieting is the practice of eating food in a regulated way to...
- Caloric Theory
The caloric theory is an obsolete scientific theory that...
- Food energy
Food energy. Food energy is chemical energy that animals...
- Calorie restriction
Calorie restriction (also known as caloric restriction or...
- Calorie (Disambiguation)
Food energy. Food energy is chemical energy that animals (including humans) derive from their food to sustain their metabolism, including their muscular activity. [1] Most animals derive most of their energy from aerobic respiration, namely combining the carbohydrates, fats, and proteins with oxygen from air or dissolved in water. [2]
May 2, 2024 · calorie, a unit of energy or heat variously defined. The calorie was originally defined as the amount of heat required at a pressure of 1 standard atmosphere to raise the temperature of 1 gram of water 1° Celsius. Since 1925 this calorie has been defined in terms of the joule, the definition since 1948 being that one calorie is equal to ...
- The Editors of Encyclopaedia Britannica
Calorie. The calorie is a pre-SI unit of energy, most common in heat . It is the amount of energy required to increase the temperature of one gram of water by one Kelvin . When on a food label, the term "Calorie" refers to kilocalories, or 1000 calories. In this case, the word "Calorie" is usually written with a capital C.
Calorie restriction (also known as caloric restriction or energy restriction) is a dietary regimen that reduces the energy intake from foods and beverages without incurring malnutrition. [1] [2] The possible effect of calorie restriction on body weight management, longevity, and aging-associated diseases has been an active area of research. [1]
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Oct 28, 2022 · One calorie is equal to 4.2 kilojoules. There are calories in each of the three main macronutrients that we eat – carbohydrates, fats and proteins. Each macronutrient contains the following ...
Feb 6, 2020 · For government officials, the utility of the calorie was immediately clear. Cullather writes that the penny press first introduced much of the U.S. public to the calorie in March 1896, when Wesleyan University professor Wilbur O. Atwater sealed a graduate student into an airtight chamber. Through an airlock, Atwater fed the “prisoner of ...
