What is Calorie Counting?

What Is A Calorie?

When we speak of eating or exercise, we generally speak in terms of calories. Menus at restaurants will indicate the amount of calories for each meal. Treadmills will show the amount of calories consumed. Dieters keep track of calories every day while others proclaim that calories do not matter during weekends.

But what exactly is an calorie , in the first place?

"The calorie is nothing more than a measurement, just like inches or kilowatts," says Lauri Wright the assistant professor of nutrition as well as dietetics at the University of North Florida and spokesperson for the Academy of Nutrition and Dietetics. "It just represents how much energy is contained in the food or how much energy is used by the body."

What's in a Calorie

When we talk about calories within our bodies and in our food , what we are talking about is actually kilogramcalories Wright declares.

A calorie, sometimes described as a small calorie, is the amount of energy needed to warm 1 gram of water one degree Celsius. There are 1,000 of these calories in a Kilocalorie or large calorie. It determines how much energy it takes to increase the weight of a kilo of water by one degree Celsius. From a scientific perspective as we're using the word "calorie" on nutrition labels or menus, as well on counters for calories, they really are quoting kilocalories. (This article will use "calories" to refer to "kilocalories.")

Researchers can determine the amount of energy a certain fuel or food item has by burning it inside a device known called bomb calorimeter. The heat that is generated by the reaction increases the temperature of the water that is inside the device. The amount of temperature variance determines the amount of energy contained in the food according to Wright.

A bomb calorimeter. (Credit: MEDIAIMAG/Shutterstock)

Foods are packed with calories in the form of carbohydrates, proteins and fats. Carbohydrates and sugars, come mostly from fruit, vegetables and other grain products. Protein is in nuts, beans, meat and legumes. And healthy fats come from fruit oils, plant oils, seafood, as well as vegetables.

Carbs and proteins both contain each 4 calories per gram. While fats contain 9 calories per Gram, Wright says. To generate energy the body transforms nutrients to glucose. Simple sugar powers everything in the body.about:blank

However, not every energy generated from these nutrients is of the same quality but. Our bodies were created to utilize carbohydrates for energy to provide energy according to Wright. Carbs are comprised of many glucose molecules connected together according to her explanation, and our bodies can very easily break into energy units in a position to be broken into small units. Fats and proteins are converted into glucose. This means they are less efficient within the body.

Wright compares the human body to the luxury car engine. A luxury car is typically designed to run on top-quality gas, which has more Octane. In the event that you use regular gas into the tank , the engine continues to function however it is not as efficient. This is also true for our bodies. The engine can run smooth on carbs, however, it is not as smooth on proteins and, more importantly, on fats.

This is the reason why Wright declares that she and other nutritionists aren't big fans of ketogenic diets. "Those ketones are alternate energy, so it's almost like putting leaded gasoline in your engine," Wright declares.

Proteins and fats be used in other ways within the body, besides being an energy source Wright says. Proteins like these are perfect for building muscle and antibodies that fight illnesses. Healthy fats like omega-3 fats and monounsaturated fatty acids -- help your body in absorbing vitamins and decrease the chance of developing heart diseases and diabetes type 2 from the Mayo Clinic.

It is vital to get your calories from a variety of sources. (Credit: Ekaterina Kondratova/Shutterstock)

Counting Calories

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On the whole, dietary guidelines suggest that an average adult woman consumes around two thousand calories per day, while an adult man around 2,500, Wright says. While these numbers are an estimate of calories needed, requirements can vary between individuals Wright adds. How much energy your body needs is determined by a range of factors, like activity level and age, along with height, and more.

When you eat more calories than you're able to consume in a single day the body converts the energy you've spent into muscle (short-term storage) or fat tissues (long-term storage). The body's defense system in the event that you're not eating enough for your body. It will draw on the reserves of these stored fats to fuel itself. "The body once again is this amazing machine," Wright affirms.

Consuming too much energy can lead to weight gain and health issues. One of the primary reasons for overweight within the U.S., where obesity affects more than 93 million adults are the foods that are a source of "empty calories." Soda is just one, Wright says. It's not nutritionally healthy and has a lot of calories. If you are eating it, it's crucial to get the best for the buck she suggests. Foods that supply calories and also other nutrients such as minerals, vitamins protein, and fiber.

In the end, calories aren't the enemy, Wright says. A lot of people who are trying to lose weight become obsessed about the amount of calories they consume. However it's true that you must think about calories as a function of the individual needs of your body Wright advises.

If you're creating a list of calories or not, they're just a way to measure energy. Making the most use of that energy is yours to decide.