Transcript Year 7 – Basic Skills

Theory
Carbohydrate- Why do we need it?
Carbohydrates are the main energy providers.
All carbohydrates are converted to glucose when
digested and this is converted to energy!
If the energy is not used up then it is stored
as body fat!
Where do carbohydrates fit into the eatwell plate?
Types of carbohydrates
Carbohydrates mainly come from
plants.
There are 2 types of carbohydrate:
starches & sugars.
Carbohydrates: Starches
Starchy foods provide a slow release of energy and help
our blood sugar levels stay the same so we don’t feel
tired. (Also known as complex carbohydrates)
Starchy foods also contain other nutrients such as
vitamin B, which transfers and releases energy and also
helps with the formation of red blood cells.
What starchy foods can you think of?
Carbohydrates: Sugars
Sugar gives a fast release of energy that means your blood
sugar levels go up and down like a yoyo!
This makes you feel either too tired or too full of energy.
Some foods contain natural sugars such as milk, fruit & honey.
Many foods such as fizzy drinks, cakes, biscuits & jam contain
added table sugars. This is the sugar that can be bad for our
health and our teeth!
Which contains more sugar?
52.5g
1 x 500ml bottle
of Ribena
44g
2 x packets of
chewy starburst
sweets
Watch out for hidden Sugars!
Food manufacturers add sugar to many foods and drinks to improve
the taste & flavour.
It is sometimes called hidden sugar because we may not realise it is
there.
Foods such as pasta sauce, soups, cereals, baked beans contain added
sugar.
Manufactures often try to disguise sugar by referring to it as
glucose, dextrose, fructose.
Read labels carefully as sometimes the nutritional content is given per 100ml
which means that a bottle containing 500ml has 5 times that amount!
Fibre (NSP)
Fibre (Non starch polysaccharides) is sometimes classified as
a carbohydrate although it is not actually a nutrient. This is
because it is not absorbed by the body.
Why do we need it?
Fibre helps the digestive system to stay healthy by getting rid
of all the waste in the form of faeces. As fibre passes through
the body it absorbs water and adds bulk to the waste making it
soft. A lack of fibre in the diet can lead to constipation and bowl
cancer. Fibre is also thought to slow down digestion which
helps to control blood sugar levels.
What foods are a good source of fibre?
Quiz ??
Carbohydrate is needed …
A) To protect vital organs
B) For Energy
C) For growth & repair
Which section of the eatwell plate
do carbohydrates come from…
A) meat, fish, eggs
B) Milk, cheese, yoghurt
C) Bread, potatoes, pasta, rice
Slow release carbohydrates are
called…
A) Complex carbohydrates
B) Combined carbohydrates
C) Simple carbohydrates
Foods & drinks which contain
natural sugars include
A) Cakes, Biscuits, chocolate
B) Milk, Fruit, Honey
C) bread, chips, rice, potatoes
Eating too much sugar in one go can
affect….?
A) Blood sugar levels
B) Energy levels
C) A & B
Fibre helps the body to….
A) Grow & repair
B) Get rid of waste
C) Create energy
All carbohydrates are converted to ..
A) Glucose
B) Protein
C) Waste
All carbohydrates are converted to ..
A) Glucose
B) Protein
C) Waste
Starchy foods are a good source of
carbohydrate because they…
A) Release energy quickly
B) Speed up digestion
C) Contain lots of other nutrients