Kilocalories

Definition

Kilocalories are units of energy that are used to measure the energy content of foods and the amount of energy the body needs to function.

Scientific / Technical Definition

Kilocalories, often referred to simply as 'calories' in dietary contexts, are a unit of energy defined as the amount of heat needed to raise the temperature of one kilogram of water by one degree Celsius. They are a measure used to express the energy-providing potential of food as well as the energy expenditure of the human body.

Benefits

• Provide energy needed for daily activities
• Support vital bodily functions like heart rate and breathing
• Help maintain a healthy weight when balanced with physical activity

Examples

• A medium-sized apple contains approximately 95 kilocalories.
• A slice of whole-grain bread contains about 69 kilocalories.
• Running a mile burns roughly 100 kilocalories, depending on body weight.

Additional Information

• Importance: Kilocalories are crucial for maintaining the body's energy balance. Consuming the right amount helps in sustaining an active lifestyle and regulates body weight.

Related Terms

• Calories
• Basal Metabolic Rate
• Energy Expenditure
• Metabolism

References

• Understanding Calories: About Energy Balance
• Calories - The Nutrition Source