B1 lesson 1 What

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B1 lesson 1 Whats for lunch?
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Starter

• Make a list of your three favourite foods and
  your three most hated foods
• Give a reason as to why you like/hate each of
  them

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Objectives

• Foundation
• Understand why we need a balanced diet
• Know the components of a balanced diet
• Calculate RDA and BMI
• Higher
• Know some alternative diets

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Carbohydrates - Bread, Rice, Potatoes, Pasta
Fruit and Veg
Dairy
Proteins - Meat, Fish, Eggs, Beans
Fats
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Diet - the basics

• Healthy diets are balanced in the context of
• Proteins build muscle and cells
• Carbohydrates- starch and sugars - energy
• Fats and oils cell membranes and energy
• Minerals and vitamins - health
• Fibre helps food move through the intestine
• Water hydration of the body

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Food labels

• Analyse the food labels and find the ones with
• High carbohydrate levels
• High Fat levels
• High Protein levels
• Answer the rest of the questions on the sheet

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Portions

• The amount of each food group we need depends on
  many factors
• Age
• Size
• Exercise levels
• Male/Female

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Having the incorrect amount of each group can
lead to
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BMI
BMI

• BMI is your Body Mass Index

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Body mass index
Doctors can assess whether people are obese using
BMI however it is not totally reliable. What is
your BMI?
BMI weight (Kg)height2 (m2)

• BMI Categories
• Underweight lt18.5
• Normal weight 18.5-24.9
• Overweight 25-29.9
• Obesity BMI of 30 or greater

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Protein RDA
Protein RDA (grams) 0.75 x body weight (kg) Do
you think that calculating the protein RDA this
way is reliable for all people?
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Why do we need proteins?

• Unlike fats and carbohydrates, if you eat too
  much protein it doesnt get stored
• Meat proteins are called first class proteins
  amino acids that
• cant be made by the body
• Kwashiorkor

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Special Diets

• Vegetarian does not eat meat or fish
• Vegan does not eat any products of animal
  origin
• Halal meat has to be killed in a specific way
• Jewish do not eat pork

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What are the problems with alternative diets?

• Vegetarian lack of protein and vitamins eg. B1
• Vegan same as above plus calcium