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  2. Calorie - Wikipedia

    en.wikipedia.org/wiki/Calorie

    [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). [1] [3] The small calorie or gram calorie is defined as the amount of heat needed to cause the same increase in one milliliter of ...

  3. Food energy - Wikipedia

    en.wikipedia.org/wiki/Food_energy

    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.

  4. List of countries by food energy intake - Wikipedia

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

    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 ...

  5. How many calories are in a pound? Strategies for losing 1 ...

    www.aol.com/news/many-calories-pound-strategies...

    All calories are not the same. For example, a gram of carbohydrate has 4 calories and the same goes for a gram of protein. A gram of fat provides 9 calories. Carbohydrates generally digest the ...

  6. Diet and obesity - Wikipedia

    en.wikipedia.org/wiki/Diet_and_obesity

    USDA chart showing the increase in soda consumption and the decrease in milk consumption from 1947 to 2001 [6]. From 1971 to 2000, the average daily number of calories which women consumed in the United States increased by 335 calories per day (1542 calories in 1971 and 1877 calories in 2000).

  7. Guideline Daily Amount - Wikipedia

    en.wikipedia.org/wiki/Guideline_Daily_Amount

    Women need, on average, 1800–2200 kilocalories (kcal) a day whereas children need 1500–2000 kcal and men 2200–2700 kcal. [2] In March 2009, the European Food Safety Authority published its opinion on intake levels for Europe and they were consistent with numbers behind the GDAs developed in the UK. [10] Moreover, not all categories are equal.

  8. Specific dynamic action - Wikipedia

    en.wikipedia.org/wiki/Specific_dynamic_action

    However, the increase is marginal, amounting to 7-8 calories per hour. [1] The primary determinants of daily TEF are the total caloric content of the meals and the macronutrient composition of the meals ingested. Meal frequency has little to no effect on TEF; assuming total calorie intake for the days are equivalent.

  9. 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.