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DR. DAVE'S FITNESS QUESTIONS OF THE WEEK

What is a calorie?

We are bombarded with nutrition information that talks about how many calories are in a food. Well, what exactly is a calorie? The correct term is a kilocalorie or a large calorie, but that takes too long to say so everyone just calls it a calorie. A calorie is a unit of energy or heat. It is the amount of heat required to raise one kilogram of water one degree Celsius. Different types of foods provide different amounts of calories. One gram of fat yields 9 calories, protein yields 4, carbohydrates 4, and alcohol 7.

 

 

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