What is a calorie?

What are calories? Calories are made up of three macronutrients: carbs, proteins, and fats which yield energy for the body. Carbs yield 4 calories per gram and is mostly used to help your bodily functions and movements. Fats yield 9 calories per gram meaning you get more energy per gram. That’s why it’s important to eat a moderate amount of fats in your foods. Proteins yield 4 calories per gram and are mainly used in rebuilding your body’s daily breakdown from stress applied on it.

Go to www.weight-loss-plans-4-you.com/what-are-calories.html to find more on how calories affect the following:

• What is resting metabolic rate?
• Going on a very low calorie diet.
• Does different macronutrient (carbs, proteins, and fats) diets work?

A calorie is a unit that represents the amount of energy provided by food. Carbohydrate, protein, and fat are the primary sources of calories in the diet, but alcohol also contains calories. If all calories consumed aren’t used as energy, they may be stored as fat.

Discovery Health
Calories provide a measure of the potential energy in the food that we eat. They measure this energy in the form of carbohydrates, fats and proteins.
Piedmont Heart Institute

You have probably heard the term "calorie" used a lot. When talking about food, a calorie is a unit of energy that the food supplies to your body. But when talking about physical activity, a calorie is a measure of the energy that your body uses in performing the activity.

Calorie balance is like a scale. To remain in balance and maintain your body weight, the calories you get from foods must be balanced by the calories you use in normal body functions and physical activity. If you eat more calories than you use, you gain weight. If you "burn up" more calories than you eat, you lose weight.

This answer is based on source information from  the National Women's Health Information Center.

Continue Learning about Calorie Restriction and Weight Loss

Calorie Restriction and Weight Loss

Calorie Restriction and Weight Loss

It's important to recognize the role calories play in your ability to lose weight. Varying your caloric intake on a daily basis forces the body to use more energy, thus jump-starting weight loss. Calorie needs also vary from perso...

n to person, so it's hard to pinpoint a specific number of calories to cut while on a diet. The key is not to kick your body into starvation mode by making a drastic cut to calories. Be mindful of nutrition and make small changes instead, like choosing light beer, thin crust on your pizza and fruit over candy on top of frozen yogurt. It's all about healthy eating, not starvation.

Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.