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  2. Calorie - Wikipedia

    en.wikipedia.org/wiki/Calorie

    The calorie is a unit of energy that originated from the caloric theory of heat. [1] [2] The large calorie, food calorie, dietary calorie, kilocalorie, 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).

  3. A calorie is a calorie - Wikipedia

    en.wikipedia.org/wiki/A_calorie_is_a_calorie

    A kilocalorie is the equivalent of 1000 calories or one dietary Calorie, which contains 4184 joules of energy. The notion that "a calorie is a calorie" is related to the idea that weight maintenance is a result of equalizing calorie input and calorie output, [4] and may lead to the practice of calorie restriction.

  4. Nutrition facts label - Wikipedia

    en.wikipedia.org/wiki/Nutrition_facts_label

    A sample nutrition facts label, with instructions from the U.S. Food and Drug Administration [1] Nutrition facts placement for two Indonesian cartons of milk The nutrition facts label (also known as the nutrition information panel, and other slight variations [which?]) is a label required on most packaged food in many countries, showing what nutrients and other ingredients (to limit and get ...

  5. Food energy - Wikipedia

    en.wikipedia.org/wiki/Food_energy

    To facilitate evaluation by consumers, food energy values (and other nutritional properties) in package labels or tables are often quoted for convenient amounts of the food, rather than per gram or kilogram; such as in "calories per serving" or "kcal per 100 g", or "kJ per package".

  6. List of countries by food energy intake - Wikipedia

    en.wikipedia.org/wiki/List_of_countries_by_food...

    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 USA, [5] Canada, [6] and the UK, which use kilocalories or both. [7]

  7. Units of energy - Wikipedia

    en.wikipedia.org/wiki/Units_of_energy

    The calorie is defined as the amount of thermal energy necessary to raise the temperature of one gram of water by 1 Celsius degree, from a temperature of 14.5 °C, at a pressure of 1 atm. For thermochemistry a calorie of 4.184 J is used, but other calories have also been defined, such as the International Steam Table calorie of 4.1868 J.

  8. Table of food nutrients - Wikipedia

    en.wikipedia.org/wiki/Table_of_food_nutrients

    The tables below include tabular lists for selected basic foods, compiled from United States Dept. of Agriculture sources.Included for each food is its weight in grams, its calories, and (also in grams,) the amount of protein, carbohydrates, dietary fiber, fat, and saturated fat. [1]

  9. List of macronutrients - Wikipedia

    en.wikipedia.org/wiki/List_of_macronutrients

    Fat has a food energy content of 38 kilojoules per gram (9 kilocalories per gram) proteins and carbohydrates 17 kJ/g (4 kcal/g). [ 2 ] Water makes up a large proportion of the total mass ingested as part of a normal diet but it does not provide any nutritional value.