Fat Flashcards
(27 cards)
What is fat?
A concentrated source of energy
Approximately how much energy does it provide?
Approx. Twice as much as the same amount of protein or carbohydrate
How much energy does 1g of pure fat provide?
9kcal / 38kj
Where is excess fat stored in the body?
Adipose tissue
What does it provide when energy intake is restricted?
Energy reserve
What does adipose tissue do?
Surrounds and protects vital organs eg. Heart and kidneys
What does adipose tissue provide?
An insulating layer under the skin to preserve body heat and protect the skeleton
Fat helps the body to…
Absorb and use the fat soluble vitamins A,D,E and K
Some fat are a source of what?
Essential fatty acids omega 3 and omega 6
What important role does omega 3 and 6 play in the body?
Reducing CHD risk
What does an intake of total fat lead to?
Obesity
What are the 2 main types of fat?
Saturated and unsaturated
What does excess intake of saturated fat lead to?
CHD
What are the sources of saturated fat?
Animal sources:
- beef - dairy products
- pork - red meat
- egg - processed meats
- cheese
- minced steak
- coconut
What are the two types of unsaturated fat?
Polyunsaturated and monounsaturated
What are the sources of polyunsaturated fat?
Plant sources:
- seeds
- seeds
- chick peas
- sunflower oils and spreads
- oily fish
What are the sources of monounsaturated fat?
Plant sources:
- olive oil, olives and olive oil products
- avocado
Why are omega 3 and omega 6 called essential fatty acids?
Because they can’t be made in the body and therefore it’s essential we include them in our diet
Omega 3 and 6 help reduce the risk of..
CHD and stroke
Where are omega 3 fatty acids found?
In oily fish therefore important to include 1 portion of fish a week
Name sources of oily fish
Mackerel Salmon Tuna Sardines Tinned fish
What type of fats do some food products contain?
Trams fats
How are trans fats formed?
When oils are hydrogenated (have hydrogen added to them)
Why are products hydrogenated?
To make a more solid and versatile product
