Dietary content and function
- Created by: KatieHe
- Created on: 18-03-17 11:20
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- Balanced diet
- Dietary fibre
- Wholegrain, Cereals, Vegetables
- Non-startch, structural polysaccharides including cellulose, only available from plan sources
- Gives bulk to food residues in the intestines
- Aids gastrointestinal functioning
- Large amount, 20-40 g per day
- Wholegrain, Cereals, Vegetables
- Fats
- Butter, oil, pastry, fried food
- Secondary energy supply
- Adsorbed as fatty acids and glycerol in small intestine and triglycerides in adipose tissue
- Triglycerides taken to the liver via the circulatory system
- In the liver they are converted to glucose
- Available as delayed (20 minute delay) energy source for long duration low intensity aerobic exercise
- In the liver they are converted to glucose
- Triglycerides taken to the liver via the circulatory system
- 20-25%
- Butter, oil, pastry, fried food
- Vitamins
- Vitamin A, Vitamin C
- Organic substances needed for crucial functions in nearly all bodily functions
- Regulate metabolism and facilitate energy release
- Have important functions in bone formation and tissue synthesis
- Small amounts essential
- Vitamin A, Vitamin C
- Proteins
- Meat, Eggs, Milk, Cheese, Nuts
- Absorbed as amino acids in small intestine
- Used for growth and repair by all tissues
- Used when body is depleted of CHO and fat
- Excess protein not needed for tissue repair is broken down and used as energy supply
- 10-15%
- Meat, Eggs, Milk, Cheese, Nuts
- Minerals
- Calcium, iron, Sodium, Potassium
- Calcium provides structure in bones and teeth
- Iron is needed for red blood cell production
- Other minerals assist in synthesising glycogen, fat and protein
- Small amounts essential
- Calcium, iron, Sodium, Potassium
- Carbohydrate (CHO)
- Sugars, Rice, Potatoes, Pasta
- Main energy supply
- adsorbed as glucose in small intestine, transported around body as blood glucose
- Available for immediate energy
- Excess stored as muscle and liver glycogen and as fat
- 60%
- Sugars, Rice, Potatoes, Pasta
- Water
- 72% of muscle weight and 50% of adipose tissue
- Provides the body's transport and reactive medium
- Transports nutrients and has a main role in the body production of urine and faeces
- Lubricates joints, stopping bones grinding against one another
- Provides structure and form to the body
- 5 litres per day
- Macro nutrients
- Proteins
- Meat, Eggs, Milk, Cheese, Nuts
- Absorbed as amino acids in small intestine
- Used for growth and repair by all tissues
- Used when body is depleted of CHO and fat
- Excess protein not needed for tissue repair is broken down and used as energy supply
- 10-15%
- Meat, Eggs, Milk, Cheese, Nuts
- Proteins
- Micro nutrients
- Water
- 72% of muscle weight and 50% of adipose tissue
- Provides the body's transport and reactive medium
- Transports nutrients and has a main role in the body production of urine and faeces
- Lubricates joints, stopping bones grinding against one another
- Provides structure and form to the body
- 5 litres per day
- Water
- Dietary fibre
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