Diet.Objectives:

To explain the requirements of a balanced diet

To explain the importance, and use, of macro nutrients (carbohydrates,fats and protein) for personal health and wellbeing, and maintaining a healthy,

active lifestyle

Task 1: Write down everything that you ate and drank yesterday.

What does the word diet mean?

Why might someone have a

special or different diet?

What are macro and micro nutrients?

What are the 7 components of a balanced diet?

Which ones are macronutrients and which ones

are micronutrients?

In what proportions

should we eat the three different

macronutrients?

Carbohydrates

• Two types: complex and simple.• Provide the muscles with energy when required. • Stored in the muscles and the liver as glycogen.• During exercise, glycogen is converted to glucose and used as energy. • Complex or starchy carbohydrates are the best type of carbohydrates

because they provide fast acting but long lasting energy.• Simple or sugary carbohydrates provide us with energy but no other

nutrients.Extension: Provide some examples of complex and simple carbohydrates.

Fats

• Provide energy.• This energy is stored, therefore released slowly when there is a lack of

carbohydrate.• Therefore if not used, fat can be stored in the body and increase the size and

weight of the performer.• Useful for performers who require a lot of bulk (shot putters) or athletes who

are working for extreme lengths of time at low intensities (ultra runners)• Should be a combination of saturated, polyunsaturated and monounsaturated

fat.Extension: Give examples of food high in fat. Research foods that are high in each type of fat.

Protein

• Builds body muscle and repairs body tissues• Protein foods are broken down in the body as amino acids and the body

needs 21 different types to work properly.• Your body produces 13 of these but the other 8 come from our food.• Two types of protein: animal and plant.• Protein is essential to aid recovery between training sessions or after an

injury. • Aids performance by allowing the athlete to train harder each session.Extension: Give examples of protein rich food. What type of athlete might eat a lot of protein?

Putting it into practice…

A balanced diet consists of 50% carbohydrate, 30% fat and 20% protein. How might these percentages differ for these performers?

Extension Questions.

1. What is the major role in the human diet of:- Carbohydrates - Protein - Fat

2. Give three examples of foods that are good sources of:- Carbohydrates - Protein - Fat

3. What two types of carbohydrates are there and in what form are they stored in the body?

Go back to your list of foods from the

beginning of the lesson and try to identify if

each item consists of carbohydrate, protein or

fat.

Complete the pyramid to show what you have learnt today.Ask a question; this could be

something that you are not sure about or something further that

you would like to ask.