CALORIES WHAT IS A CALORIE?
A calorie is a unit of heat energy • Calorie = amount of energy needed to raise 1 gram of water by 1 degree celcius • Body sees calories as energy to produce heat • Amount of calories in a food = amount of potential energy the food has
There is a direct relationship between calories and body fat • If you eat more calories than the body uses, the extra calories are stored as body fat • 3500 calories = 1 lb body fat
If the body uses more calories than the amount consumed, it results a loss of body fat • Healthy weight loss = 2 lbs/week • How many extra calories must be burnt to lose 2 lbs in one week? Weight Loss
All foods have calories • Different foods have different amounts • Calories are provided by fats, protein, and carbohydrates Calories and Foods
Fats = 9 calories/gram • Proteins = 4 calories/gram • Carbohydrates = 4 calories/gram Calories Per Gram
Each person’s body burns calories at different rates (metabolism) • Recommended range for school-aged kids = 1600-2500 calories/day How many calories do you need?
Grande Peppermint Mocha Frappucino • 5 g fat • 73 g carbohydrates • 6 g protein • Total calories? Starbucks