We all know it is that number on the back of your cereal box OR that pesky dietary number you are constantly counting and attempting not to surpass. In reality, it is just a simple unit of measurement. A calorie is the heat required to raise the temperature of one kilogram of water by one degree Celsius.
What if calculating food calories-in and energy calories-out is not an accurate way to measure energy expenditure throughout the day? How does that affect the pervasive diet plan of "counting calories"?
Research is beginning to show that the calorie, as we currently perceive it, is not the accurate scientific measure once professed.
Although, that does not mean all hope is lost for the nutrition-minded! New methods and measures are being developed.
The following article follows the history of the calorie; its “discovery”, its science, and its ultimate failing, as well as, discussions on who its successor might be.