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?

Basically, a calorie is a unit of energy; it measures how much energy a food provides to the body. Here are a few points to help clear up calorie confusion: How many calories are in a pound? It has ...

Do you know how calorific your favourite alcoholic drink is? You may be surprised to find out three glasses of wine has as many calories as two cheeseburgers. That is according to a calorie and unit ...

Calories weren’t always about food. The term started out as a measurement of energy in the 1800s, and it was several decades before it was used in conjunction with human nutrition, according to the ...

This Halloween, when you grab a candy bar, pay attention to the wrapper. In the United States, a "nutrition facts" label has been required for all packaged foods since 1994, giving the serving size ...

Many foods are high in calories, but fat contains the most calories per gram. Some high calorie options, such as avocado, nuts, and seeds, are also dense in nutrients. There are many reasons people ...