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AQA Home Economics:
Food and Nutrition




Revision Booklet



















Current Dietary Guidelines





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This diagram shows the main points from the Eatwell Plate
The Food Standards Agency

Combination and Composite Food




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Much of the food that we eat is in the form of dishes or meals with more than one
kind of food group in them e.g. pizza, casserole, pies and lasagne. These are
called COMBINATION or COMPOSITE foods.

In order to make healthy choices you need to identify the main…

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What is a Healthy Diet?

The government has issued several guidelines to help us eat a healthy diet.
Guidelines include:
8 tips for healthy eating
5 A Day
the eatwell plate
diet reference values










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Dietary Reference Values (DRV)
Are a series of estimates of the amount of energy and nutrients needed by
different groups of healthy people






Reference Nutrient Intake (RNI's)
Are used for protein, vitamins and minerals and is an estimate of the amount
that should meet the needs of most people






Estimated…

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Questions

1. What is meant by a healthy diet?
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2. A well balanced and healthy diet should include the following food groups
in the correct proportions

Fruit and vegetables
Bread, cereals and potatoes
Meat, fish and alternatives
Foods containing fats, foods containing sugar
Milk and dairy foods

(a)…

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5. The Guideline Daily Amounts (GDA's) for adults are shown below

GDA Women GDA Men
Energy Kcal (calories) 2000 2500
Fat 70g 90g
Of which saturates 20g 30g
Salt 6g 6g

(a) how do these guidelines help us to make healthy choices?
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(b) give two reasons…

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NUTRITION
is the study of the nutrients found in food and their functions in the body.




NUTRIENTS
Are chemical compounds which form molecules in food
Most foods are made up of more than one nutrient, but no individual food
provides all the nutrients that are needed by the body





BALANCED…

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PROTEINS










Indispensible Amino Acids (essential) ­ High Biological Value
Contain all the essential amino acids found in ANIMAL sources

Low Biological Value lack one or more of the essential amino acids and
are found in PLANT sources


Complementary Proteins
Mixtures of plan proteins can complement each other by supplying the…

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Beans on toast lentil soup and bread roll






Questions


1. Give two functions of protein in the diet

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2. Explain the following terms
(a) indispensible (essential) amino acid
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(b) High biological value
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( c) Complementation of protein
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3. Give five examples of protein foods with…

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