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Questions and Answers
What is the main purpose of calories in food products?
What is the main purpose of calories in food products?
- To act as a preservative
- To contain energy for survival (correct)
- To provide taste
- To add color
How many calories are present in a gram of fat?
How many calories are present in a gram of fat?
- 6
- 2
- 9 (correct)
- 4
Why do people need to eat to get energy?
Why do people need to eat to get energy?
- To fulfill their hunger cravings
- To obtain calories for survival activities (correct)
- To lose weight
- To socialize with others
What happens if a person consumes more calories than their body needs?
What happens if a person consumes more calories than their body needs?
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Why do different people require different numbers of calories each day?
Why do different people require different numbers of calories each day?
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Study Notes
Calories and Energy
- A calorie is a unit of energy or heat associated with food items.
- Calories are essential for human survival, providing energy for breathing, moving, and pumping blood.
Calorie Content in Food
- Nearly every kind of food and drink product contains some calories, with varying amounts.
- The calorie content of food is measured by its potential energy.
Calorie Measurement
- A gram of carbohydrates or protein has 4 calories.
- A gram of fat has 9 calories.
- The amount of energy in a food product can be determined by finding the number of carbohydrates, fats, and proteins it contains.
Daily Calorie Needs
- The average daily calorie need for most adults is approximately 2000 calories.
- Individual calorie needs vary based on factors such as height, muscles, gender, age, and activity level.
Calorie Balance and Weight
- Consuming more calories than needed can lead to becoming overweight.
- Consuming fewer calories than needed can lead to weight loss.
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