Protein is the number 1 nutrient, as it is needed for growth and repair of body cells
Proteins contain essential amino acids
There are 2 types of protein- high biological value and low biologial value
High Biological Value (HBV)
Found in meat, fish, eggs, soya, Quorn and milk
Low Biological Value (LBV)
Found in pulses, beans, peas, lentils, nuts and cereals
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Carbohydrates
Carbohydrate rich foods are the main energy providers
There are 3 types of carbohydrates: Complex,Starches and Sugars
Complex
Wholegrain foods are high in complex carbohydrates (brown rice, wholegrain bread)
Wholegrain foods maintain stable blood sugars
Starches
Found in rice, pasta, bread, potatoes and cereals
Sugars
Found in sugar, honey, jam and fruits
Too much of these foods can cause changes in blood sugar levels; making you energetic then tired. Excess sugars are stored in the muscles and the liver, ready for use, but if they are not used they are stored as fat
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Fats and Oils
Fats and oils are essential for warmth and energy
Although they are essentials, a diet too high in fats and oils can cause problems, such as obesity, high cholesterol, heart disease, type 2 diabetes and halitosis (bad breath)
Fats
Fats are solid at room temperature- butter, margarine, lard and dripping
Oils
Oils are liquid at room temperature- are found in corn, sunflowers, peanut, sesame and olives
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Minerals
Iron
Iron rich foods include cereals, meat, dried fruit,green leafy vegetables (such as spinach), eggs and dark chocolate
Iron helps to make red blood cells. Blood carries oxygen to the body, without iron, there would be no oxygen
A diet low in iron can lead to anaemia, the symptoms of iron deficiency anaemia include lethargy, headaches, heart palpitations and shortness of breath
Calcium
Calcium is needed for strong bones and teeth and to clot the blood
It is found in milk, cheese, yogurt, vegetables, cereals and bread
In elderly people, the lack of calcium can result in osteoporosis, making the bones weak and more likely to fracture or break
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Vitamins
Vitamin A
Vitamin A helps to prevent "night blindness" and keeps a moist mucous membrane in the nose
Carrots, oranges and spinach are high in vitamin A
Vitamin B
Vitamin B is the group of vitamins thiamine, niacin and riboflavin
It is needed to release the energy from carbohydrates and are found in liver, meat, nuts, oats and tuna
Vitamin C
Vitamin C is used to make connective tissue, to maintain a healthy immune system and to help the body absorb iron
Citrus fruits and berries are high in vitamin C
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Vitamins 2
Vitamin D
Vitamin D is needed to help calcium build healthy and strong bones and teeth
It is found in eggs, fish and margarine
It can also be made by the body through sunshine on the skin
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