Transcript Diagram To Summarise the transport of Cholesterol in the

Cholesterol
• Some foods naturally contain cholesterol.
For example:
•
Liver
• Kidneys
• Eggs
• Prawns
• But the cholesterol we get from our food
has much less effect on the level of
cholesterol in our blood than the amount
of saturated fat we eat.
• The government recommends that cholesterol
levels should be less than 5mmol/L.
• The UK population has one of the highest
average cholesterol concentrations in the
world.
• In the UK, two out of three adults have a total
cholesterol level of 5mmol/L or above. On
average,
•
•
men in England have a cholesterol level of
5.5mmol/L
women have a level of 5.6mmol/L.
• High levels of cholesterol in the blood
increase the risk of:
•
Disease of the heart and blood vessels.
•
Heart Attack
• A stroke
• This is because cholesterol can build up
in the artery wall restricting the flow of
blood to your heart, brain and the rest of
your body. It also increases the chance
of a blood clot developing.
• Cholesterol is made by the liver and
found in the blood.
• It is used in the cell membranes of
mammals…
…and so is essential for life
• The amount of cholesterol produced by
the liver depends on a combination of
diet and inherited factors.
• Cholesterol is carried around the
body by two types of lipoproteins.
• Low-density lipoproteins (LDLs)
are ‘bad’ cholesterol and can cause
heart disease.
• High-density lipoproteins (HDLs)
are ‘good’ cholesterol.
• The balance of these is very
important to good heart health.
Use the Words below to label the diagram:
HDL LIVER LIVER LDL LIVER TISSUES
LIVER
____________
HDL
_______
LDL
________
carries
cholesterol
from the
LIVER
_________
LIVER
_________
carries
cholesterol
back to the
TISSUES
____________
Saturated Fats
• Saturated fats increase blood cholesterol
levels.
• Most people in the UK eat too much
saturated fat – about 20% more than the
recommended maximum amount.
•
The average man should have no more than
30g saturated fat a day.
• The average woman should have no more
than 20g saturated fat a day.
• Foods that are rich in saturated fat:
•
•
•
•
•
•
•
•
•
Fatty cuts of meat and meat products such
as sausages and pies
Butter, ghee and lard
Cream, soured cream, crème fraîche and ice
cream
Cheese, particularly hard cheese
Pastries
Cakes and biscuits
Some savoury snacks
Some sweet snacks and chocolate
Coconut oil, coconut cream and palm oil
Unsaturated Fats
• Monounsaturated and polyunsaturated
fats may help both to reduce blood
cholesterol levels and to improve the
balance between LDLs and HDLs.
• Foods that are rich in unsaturated fat:
•
Oily fish
• Avocados
• Nuts and Seeds
• Sunflower, Rapeseed, Olive and vegetable
oils, and spreads made from these
LDL stands for LOW DENSITY
LIPOPROTEIN
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ANSWER!
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HDL stands for HIGH DENSITY LIPOPROTEIN
WHICH ONE IS GOOD CHOLESTEROL?
HDL
WHICH FATS IN YOUR DIET INCREASE THE
PRODUCTION OF THE ‘GOOD’ CHOLESTEROL?
MONOUNSATURATES & POLYUNSATURATES
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