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  2. 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.

  3. 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).

  4. British thermal unit - Wikipedia

    en.wikipedia.org/wiki/British_thermal_unit

    This definition ultimately became the statement that 1 IT calorie is exactly 4.1868 J. [4] [8] The Btu is then calculated from the calorie as is done for the thermochemical definitions of the BTU and the calorie, as in International standard ISO 31-4 Quantities and units—Part 4: Heat and British Standard BS 350:Part 1:1974 Conversion factors ...

  5. 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.

  6. What Is a Calorie Deficit & How Does It Really Impact Weight ...

    www.aol.com/calorie-deficit-does-really-impact...

    A calorie deficit essentially means eating fewer calories than your body burns. In more technical terms, it’s the state in which your energy intake is lower than energy expended.

  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. Science Says This Intermittent Fasting Plan Burns More Fat ...

    www.aol.com/science-says-intermittent-fasting...

    A new study suggests that intermittent fasting is more effective than calorie-counting for weight loss and belly fat burn. A dietitian explains how to start. Science Says This Intermittent Fasting ...

  9. This Is The Minimum (And Maximum) Calories You Need ... - AOL

    www.aol.com/minimum-maximum-calories-every-day...

    If you want to gain weight, the Cleveland Clinic recommends increasing your calorie intake by 300 to 500 calories a day—3,122 to 3,322 calories per day for the average guy, assuming his activity ...