calorie definition nutrition

Calorie kalo-re any of several units of heat defined as the amount of heat required to raise the temperature of 1 kilogram of water by 1 degree Celsius 1C at a specified temperature. For historical reasons two main definitions of calorie are in wide use.

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The amount of energy in an item of food or drink is measured in calories.

. A unit equal to the amount of heat needed to increase the temperature of one gram of water by one degree Celsius. Carbohydrates fiber fats proteins organic acids polyols and ethanol all release energy during metabolismthis is often called food energy. Use these rules of thumb. Technically a kilocalorie represents 1000 true calories of energy.

Its common to think of calories in food as a way to measure amounts but thats not quite accurate. A calorie is a unit of energy. Any food constituent that aids in the support of life. La calorie est beaucoup utilisée en diététique pour quantifier lénergie apportée au corps par les aliments ingérésCalories des alimentsUn gramme de lipide apporte 9 kcalUn gramme de.

A kilocalorie represents the amount of energy required to raise the temperature of a liter of water 1 centigrade at sea level. A unit of food energy. In nutrition terms the word calorie is commonly used to refer to a unit of food energy. The amount of heat required to increase the temperature of one gram of water one degree Celsius specifically from.

A calorie in nutrition is actually 1000 of these small calories. The typical US daily menu contains 3000 calories and should contain 2300. Definition CALORIE is generally described as a heat unit and food value unit. The original published source now available on the internet defined the Calorie as the quantity of heat needed to raise the temperature of 1 kg of water from 0 to 1C.

1 gram of carbohydrate sugars and starches has 4 calories kcal Fat. Food is vital to providing the body energy for functions such as breathing and physical activity. My wife convinced me to finally start counting calories control my weight by being careful about what. An example of a calorie is five calories are needed to bring a kilogram of water up one degree Celsius.

Nutrition labels in the US. If this continues over time we may put on weight. The calorie is a unit for measuring food energy. When we eat and drink more calories than we use up our bodies store the excess as body fat.

One hundred calories of peanut butter for example is only a spoonful or two. In nutrition calories refer to the energy people get from the food and drink they consume and the energy they use in physical activity. When nutrients react with oxygen in the cells of living things energy is released. A unit for measuring heat equal to the amount of heat required to raise the temperature of one gram of water one degree Celsius.

A unit of energy in food. A unit for measuring the amount of energy that food will produce A potato has about 90 calories. A calorie is a way to measure energy so calories represent units of energy. By definition a calorie is the energy it takes to raise the temperature of 1 kilogram of water 1 degree Celsius.

The small calorie or gram calorie was defined as the amount of heat needed to cause. You get calories from essential macronutrients like protein carbohydrates and fat. Calories are a unit of measurement to show how much energy you will get from a serving of food. The calorie is a unit of energy.

Some researchers use the term kilocalories to refer to the nutritional unit of 1000 small calories. The Calorie originated in studies concerning fuel efficiency for the steam engine and had entered. The science that deals with food and the nutrients it contains. The calorie used in chemistry and biochemistry is equal to 4184 joules.

Food labels is similar to the original French definition of 1825. National Institute of Diabetes and Digestive and Kidney Diseases. Carbohydrates are one of the main types of nutrients. Your digestive system changes carbohydrates into glucose blood sugar.

A small amount of energy is available through fermentation. Carbohydrates fats protein and alcohol in the foods and drinks we eat provide food energy or calories Source. Kids Definition of calorie. Calories refers to the total number of calories or energy you get from all sources carbohydrate fat protein and alcohol in a serving of a food or beverage.

The word calorie is ordinarily used instead of the more precise scientific term kilocalorie. The typical US daily menu contains 3000 calories and should contain 2300. Calorie noun C FOOD a unit used in measuring the amount of energy food provides when eaten and digested. The large calorie food calorie or kilogram calorie was originally defined as the amount of heat needed to raise the temperature of one kilogram of water by one degree Celsius or one kelvin.

1 gram of alcohol has 7 calories kcal Carbohydrate. The Calorie kcal of present US. As a guide an average man needs around 2500kcal 10500kJ a day to maintain a healthy body weight. Calorie noun C FOOD a unit used in measuring the amount of energy food provides when eaten and digested.

This is why you will sometimes see kcal as an abbreviation for calories it meals kilocalories. The word calorie is used instead of the more precise scientific term kilocalorie Technically however this common usage of the word calorie of food energy is understood to refer to a kilocalorie and actually represents therefore 1000 true calories of energy. It is basically the amount of heat necessary to raise the temperature of one gram of water by 1 degree Celsius From the definition it is now clear that a calorie is a. The definition of a calorie is a measure of energy in food specifically the measure of heat needed to raise a kilogram or a gram of water by one degree Celsius.

Calorie ˈkæləri noun countable 1. A calorie-controlled diet low-caloriehigh-calorie a low-calorie snack I need to burn off a few calories lose some weight by exercising. 1 gram of fat has 9 calories kcal Protein. But one hundred calories of vegetables can equal several cups.

A unit of heat used to indicate the amount of energy foods produce in the human body that is equal to 1000 calories. In referring to the energy content of foods it is customary.

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