Flashcards in Food Deck (9):
name some factors that influence the amount and type of food needed by each person
age, gender, activity levels and health
what do different foods contain?
different amounts of energy
what is the amount of energy in food known as
its energy value
what is energy measured in
what are the normal units for the energy value of food
kilojoules per gram (kJ/g)
what energy values do carbohydrates, fats and proteins have.
in general carbohydrates and proteins have the same energy values while fats have over twice the energy value of the other two
when does the human body use protein for energy?
only when it is close to starvation. this is to prevent it from digesting digesting body parts such as muscles and the heart
where is the energy content of a food often given?
on a nutrition information panel on the side of the food container