"Measure for Measure," a fat little book (4 by 6 inches) with 864 pages, takes on the ambitious task of describing the INTERNATIONAL SYSTEM OF UNITS, known more often as SI (1996, ISBN 1-889796-00-X).

Long held up as the big benchmark of nutrition, the calorie is losing its clout in the age of GLP-1s and a sharper focus on nutrients.

Keith Ayoob answers the question: 'What are Calories, Why Do They Matter?' February 1, 2009 -- Question: What is a calorie and why is it important to know how many calories there are in certain foods?

A calorie is a unit of energy. In nutrition, calories refer to the energy people get from the food and drinks they consume and the energy they use in physical activity. Calories are in the nutritional ...

What are calories, why do we need them, and can a better understanding of calories help us maintain a healthier weight throughout our lives? Calories are units of energy that a food or drink provides.

A storm in the US over how calories are measured could cross to Europe and an overhaul of the system is long overdue, according to one nutrition expert. The Almond Board of California is petitioning ...

Calories and kcal are used interchangeably and refer to the same amount of energy, but kilojoules require conversion. Usage may differ depending on where you live. Calories are a measure of energy.