Unit 4 Flashcards
Currently more than ____ of US adults are overweight (____% are overweight, out which ___% are obese)
2/3
68%
34%
What is energy balance
State in which energy intake, in the form of food and/or beverage, matches the energy expended
What is positive energy balance
Energy intake > energy expended
Stored energy eventually results in weight gain
When is a positive energy balance good?
During pregnancy, infancy, childhood, and to restore body weight to healthy levels caused by disease or others
What is negative energy balance
Energy intake < energy expended
Energy stored (fat and muscle) is used to make up for the shortfall in energy intake resulting in weight loss
Review slide 9
Slide 9
What is used to determine calories
Bomb calorimeter
1 kilocalories is:
The amount of heat needed to raise the temp of 1 kilogram of water by 1 degree C
Kcal found in…
Carbs:
Fats:
Proteins:
Alcohol:
4 kcal/g
9 kcal/g
4 kcal/g
7 kcal/g
How is energy used?
Basal metabolism rate (BMR)
Physical activity
Digestion, absorption and processing of ingested nutrients (Thermic effect of food)
Thermogenesis