Question

What is a calorie? Empty calories, give examples.

Answer 1

The calorie is a unit of energy defined as the amount of heat needed to raise a quantity of water by one degree of temperature. There are two versions of the unit in use, which has led to some confusion.

Step-by-step explanation:

I got it from google.

Answer 2

A calorie is a unit of energy.

"In human nutrition, the term empty calories applies to foods and beverages composed primarily or solely of sugar, fats or oils, or alcohol-containing beverages. These supply food energy but little to no other nutrition in the way of vitamins, minerals, protein, fiber, or essential fatty acids."- Wikipedia