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The Importance of a Healthy Diet

This worksheet will test a student's understanding of what makes up a healthy diet and why.

Key stage:  KS 3

Curriculum topic:  Biology: Structure and Function of Living Organisms

Curriculum subtopic:  Nutrition and Digestion

Difficulty level:  

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QUESTION 1 of 10

 

A balanced diet is essential in keeping us healthy and providing our bodies with all the things that it needs in order to function properly. The foods that we eat contain a mix of seven nutrients that are used in our bodies for different things.

 

1. Fats (found in butter and oils etc...) 

 

Fats are needed in the body to provide energy. They are also used to provide insulation to keep the body warm. 

 

 

2. Proteins (found in meats, fish and eggs)

 

Proteins are needed in the body for growth and repair. Muscles, bones, hair, nails and blood all need proteins to keep them strong and healthy.


 

3. Carbohydrates (found in bread, pasta, cereals, and potatoes)


Carbohydrates are needed in the body to provide energy.

 

 

4. Vitamins (found in dairy products, fruit and vegetables) 

 

Vitamins are needed in small amounts to keep our bodies functioning properly e.g. Vitamin D is needed for healthy teeth and bones and Vitamin C is needed for healthy skin and hair.

 

 

5. Minerals (found in milk, liver, and salt) 

 

Minerals are needed for a variety of bodily functions. Some important minerals are iron, a major component of blood, and calcium, needed for healthy teeth and bones.

 

 

6. Fibre (found in bran) 

Fibre is needed to keep the gut healthy and to prevent constipation.

 

 

7. Water

 

Approximately 70% of the human body is made up of water however this water can be lost through sweating and breathing so we need to keep topping it up. 

 

 

What happens if we do not have a balanced diet? 

If our diet lacks any of these seven nutrients it can cause a variety of health problems to arise, including:

  • Anaemia, a condition caused by a lack of the mineral iron in the body.
  • Scurvy, a disease caused by a lack of vitamin C in the body.  
  • If the body becomes fat deficient it can stop absorbing certain vitamins causing tiredness and poor health. 

Which of the following are NOT one of the 7 nutrients that we need as part of a healthy balanced diet?

fat

vitamins

carbon dioxide

water

protein

amylase

minerals

bile

carbohydrates

fibre

Which of the following nutrients is needed in the body for growth and repair?

fats

carbohydrates

proteins

fibre

Can you match up the correct foods with the nutrients they provide us with?

Column A

Column B

fats
butter
proteins
bread
carbohydrates
vegetables
vitamins
meat

Anaemia is a condition that can occur when there is a lack of what in the body?

carbohydrates

water

minerals

fat

Which of the following is needed for healthy teeth and bones?

oxygen

carbohydrates

calcium

fat

Water is extremely important in keeping the body healthy. Approximately how much of the human body is made up of water? 

10%

35%

70%

98%

The water in our bodies can be lost through a variety of ways. Which of the following options are ways in which water can be lost from the body?

sweating

washing

drinking

breathing

eating

urinating

Which of the following nutrients are needed to provide the body with energy?  

carbohydrates

proteins

fibre

water

vitamins

fats

minerals

Scurvy is a disease caused by the lack of which nutrient in the diet?

fats

proteins

minerals

vitamins

In the answer box below, write the word which fills in the gap in the sentence:

 

Meats, fish and eggs are all foods that are high in ________________?

  • Question 1

Which of the following are NOT one of the 7 nutrients that we need as part of a healthy balanced diet?

CORRECT ANSWER
carbon dioxide
amylase
bile
EDDIE SAYS
The 7 nutrients essential for a healthy diet are fats, carbohydrates, proteins, vitamins, minerals, fibre and water.
  • Question 2

Which of the following nutrients is needed in the body for growth and repair?

CORRECT ANSWER
proteins
EDDIE SAYS
Proteins are needed for growth and repair.
(Fats and carbohydrates provide the body with energy and fibre is needed to keep the gut healthy.)
  • Question 3

Can you match up the correct foods with the nutrients they provide us with?

CORRECT ANSWER

Column A

Column B

fats
butter
proteins
meat
carbohydrates
bread
vitamins
vegetables
  • Question 4

Anaemia is a condition that can occur when there is a lack of what in the body?

CORRECT ANSWER
minerals
EDDIE SAYS
Anaemia is a result of a lack of iron in the body.
  • Question 5

Which of the following is needed for healthy teeth and bones?

CORRECT ANSWER
calcium
EDDIE SAYS
Calcium is a mineral that the body needs to keep teeth and bones healthy.
  • Question 6

Water is extremely important in keeping the body healthy. Approximately how much of the human body is made up of water? 

CORRECT ANSWER
70%
EDDIE SAYS
The amount of water in the human body varies with age, sex and weight however the average percentage of water in the body is 70%.
  • Question 7

The water in our bodies can be lost through a variety of ways. Which of the following options are ways in which water can be lost from the body?

CORRECT ANSWER
sweating
breathing
urinating
EDDIE SAYS
The main loss of water from the body occurs through sweating, breathing and urinating.
  • Question 8

Which of the following nutrients are needed to provide the body with energy?  

CORRECT ANSWER
carbohydrates
fats
EDDIE SAYS
Both fats and carbohydrates are needed in the diet to provide energy.
  • Question 9

Scurvy is a disease caused by the lack of which nutrient in the diet?

CORRECT ANSWER
vitamins
EDDIE SAYS
Scurvy is a disease caused by a lack of vitamin C in the body.
  • Question 10

In the answer box below, write the word which fills in the gap in the sentence:

 

Meats, fish and eggs are all foods that are high in ________________?

CORRECT ANSWER
protein
proteins
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