What Are Calories and Why Are They Important?
Calories are a measurement of heat energy. Energy is needed to heat an object, which is why calories are important.
A calorie is the amount of heat energy needed to raise the temperature of 1 gram of water by 1°C.
Calories are important to maintain a healthy lifestyle. Eating the right foods and maintaining a healthy weight is key to living a long and successful life. Calories found in food give the body energy, which we use for daily activities such as walking and running. We can burn more calories by adding exercise and increasing our physical activity. Many people eat too many calories and overindulge in unhealthy foods, causing them to gain weight or become obese.
What is a Calorie and How Is It Calculated?
A calorie is a unit of energy. The body burns calories to produce energy for the body to function properly.
A food calorie is a "kilocalorie" or "Calorie" and it equals 1000 calories. One calorie is equal to 4.187 joules. 1 gram of fat has about 9 calories.
Calories in Different Foods
A calorie is a unit of energy that shows how much energy your body will derive from a certain food. The method in which you get the calories in a given food is called the calorie content.
Top sources of calories in food:
- Alcoholic beverages - 560 kcal
- Fats and oils - 1492 kcal
- Fruit juice, fruit drinks, and fruit nectars - 439 kcal
- Sugar and confectionery products - 548 kcal
- Sweets, desserts, cakes, pies, tarts - 905 kcal
- Vegetables - 127 kcal
- Beverages other than water or milk - 1724 kcal
How Many Calories Do You Need?
People need a different amount of calories depending on their lifestyle, weight, and daily activities.
The number of calories you need can vary from person to person. The average person needs around 2000-2500 kilocalories per day.
To have an energy-efficient lifestyle, you should have a balanced diet that includes a sufficient amount of carbohydrates, proteins, and fats.
What is a Serving Size?
A serving size is the amount of food or drink, and it includes what you need and how much. It is not the same as a recommended serving size.
Many people are unaware of what a serving size is and how much they should be eating. Serving sizes vary depending on the food you are consuming, however, on average there are about ten ounces in each serving size.
The FDA defines a serving size as the the amount of food that is typically consumed in one sitting for that food. It's good to know what a serving size looks like in your diet and then think about how to reduce the amount you eat. The goal is to keep portion sizes in check to help you maintain a healthy weight.