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?

When you’re trying to lose weight, calorie counting and carbohydrate counting are two approaches you can take. Calorie counting involves applying the principle of “calories in, calories out.” To lose ...

Calorie density (also called energy density) is the number of calories in a given weight or volume of food, often per 3.5 ounces (100 grams). Low-calorie-density foods let you eat larger, more filling ...

What Is a Calorie Deficit? Calories are a measure of the amount of energy in food. All of the cells in your body require energy in order to work properly, just like a car needs fuel. They get that ...

"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).

People with overweight or obesity may use a low calorie diet to lose weight. However, there are some potential risks to following a low calorie or very low calorie diet plan. This article will define ...