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Transcript of Nutrition
So what is Nutrition?
'The intake of food, considered in relation to the bodies dietary needs'
'The process of providing or obtaining the food necessary for health and growth'
Is an estimate of how many calories you’d burn if you were to do nothing but rest for 24 hours. (
The rate at which you burn energy
It represents the minimum amount of energy needed to keep your body functioning, including breathing and keeping your heart beating.
Using the Mifflin St Jeor Equation
+ 6.25 x
) – 5 x Age (y) + 5.
+ 6.25 x
) – 5 x Age (y) – 161.
(10 x 85kg + 6.25 x 196cm) – 5 x 33 + 5
850 + 1225 – 170 =
1905 Calories a day
Factors Affecting BMR
Young people have high
due to their growth and development.
Men usually have a higher
due to greater muscle mass.
BMR accounts for about 75% of our energy needs.
15yr old boys
15yr old girls 8,800Kj = 2100cal
10, 500Kj =
Adult Women 8400Kj = 2000cal
Older Women 8000Kj = 1900cal
2 Useful Sites
Insert the following table into a new word document
- Pick three days in the past week and recall -
1. Your training / Physical Activity undertaken on each day (Hours/mins/activity)
2. Put this into your table -
3. Enter the following link
4. Work out how many calories you have burned each day
5. Add this figure to your BMR calculation
The figure you now have is the amount of calories your body needed to sustain exercise/BMR that day.
So What about You!
Basal Metabolic Rate (BMR)
What is yours?
Using the table write down what you have eaten in the 3 selected days.
Then we will work out the calories!!!!!!!
In scientific terms 1000 calories = 1 Kilocalorie, however in the modern world ‘Cal’ or ‘Kcal’ are interchangeable and conceived as one of the same.
One ‘calorie’ (cal) has the same energy value as 4.186 ‘kilojoules’
Energy is measured in ‘joules’ or ‘kilojoules’. Food energy can also be measured in terms of its nutritional value or in the ‘calories’ it contains.
3 Macro Nutrients - Carbohydrates/Fats/Proteins
Research Task -
For each 'Macro Nutrient' please investigate the following
What are they?
Function/Role - Importance of
Sources / Types
This will form part of your notes, read a number of sites/books compare the information presented.
Present the information as notes - Do not just cut and paste!!!
If you need help making notes, see me ASAP