| Nutrient (Vitamins) |
What’s It For? |
Where Can I Get It From? |
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Vitamin A
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- maintaining normal reproduction
- good vision
- formation and maintenance of healthy skin, teeth and soft tissues of the body
- immune function (has anti-oxidant properties).
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Milk, cheese, eggs, fatty fish, yellow-orange vegetables and fruits such as carrots, pumpkin, mango, apricots, and other vegetables such as spinach, broccoli.
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Vitamin B1 (Thiamin)
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- gives energy for tissues
- breaking down and using the energy and nutrients in carbohydrates, proteins and fats
- nerve function
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baking flour, wholegrains, wheatgerm, yeast, legumes, nuts, pork.
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Vitamin B2 (Riboflavin)
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- obtaining energy from food
- making Vit B6 active in the body
- reducing a key cardiovascular risk factor
- production of red blood cells and body growth
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Milk, cheese, yoghurt, fortified breads and breakfast cereals.
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Vitamin B3 (Niacin)
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- obtaining energy from food
- breaking down and using carbohydrates, proteins and fats and their building blocks
- maintaining healthy skin and nerves
- releasing calcium from cellular stores
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Beef, pork, liver, beans, wholegrain cereals, eggs, cow’s milk.
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Vitamin B6 (Pyridoxine)
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- breaking down, using and reforming the building blocks of proteins
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Muscle and organ meats, fortified breakfast cereals, brussel sprouts, green peas, beans, split peas, and fruit.
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Vitamin B12 (Cyano-cobalamin)
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- normal nerve function
- normal blood function
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Beef, lamb, fish, veal, chicken, eggs, milk and other dairy products.
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Folate
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- breaking down and using the building blocks of proteins
- the processes of tissue growth and cell function
- maintaining good heart health
- preventing neural tube defects in newborns
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Cereals, cereal products, vegetables eg broccoli, legumes and fruit eg oranges.
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Vitamin C (Ascorbic acid)
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- protects against oxidative damage
- aiding absorption of iron and copper
- formation of collagen
- healthy bones
- helps fight infection
- helps regenerate and stabilise other vitamins such as vitamin E or folate
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Blackcurrants, orange, grapefruit, guava, kiwi fruit, raspberries, sweet peppers (Capsicum), broccoli, sprouts.
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Vitamin D
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- absorption of calcium and phosphorus
- maintenance of calcium levels in blood
- immune function
- healthy skin
- muscle strength
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Sunlight on skin allows the body to produce Vitamin D. Few foods contain significant amounts however main dietary sources are fortified margarine, salmon, herring, mackerel, and eggs.
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Vitamin E (Tocopherol)
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- acts as antioxidant particularly for fats
- keeping heart, circulation, skin and nervous system in good condition
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Oils and margarines, fats of meats, chicken, fish, wheat germ, , spinach, cashews, peanuts, almonds, sunflower seeds.
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Vitamin K (phylloquinone)
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Spinach, salad greens, cabbage, broccoli, brussel sprouts, soybean oil, canola oil, margarines
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Calcium
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- development and maintenance of bones and teeth
- good functioning muscles and nerves
- heart function
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Milk, cheese, yoghurt, bony fish, legumes, fortified soy beverages and fortified breakfast cereals.
Note: the body excretes calcium with salt in urine, so eat less salt to retain your calcium.
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Fluoride
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Fluoridated water, fish, tea.
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Iodine
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- normal thyroid function (important in the growth and development of central nervous system)
- energy production
- oxygen consumption in cells
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Salt water fish, shellfish, seaweed, iodised salt, vegetables (if there is iodine in the soil where they are grown).
Note: Severe deficiencies can cause miscarriage, stillbirth, infant mortality, congenital abnormalities etc.
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Iron
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- Haemoglobin in red blood cells (important for transport of oxygen to tissues)
- component of myoglobin (muscle protein)
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Red meats – beef, lamb, veal, pork, fish, chicken and wholegrain cereals.
Vitamin C helps with absorption.
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Magnesium
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- the functioning of more than 300 enzyme systems
- energy production
- regulating potassium levels
- the use of calcium
- healthy bones
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Green vegetables, legumes, peas, beans, lentils, nuts, wholegrains and cereals
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Manganese
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- healthy bones
- carbohydrate, cholesterol and protein metabolism
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Cereal products, tea, vegetables.
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Molybdenum
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Legumes, wholegrain products, nuts.
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Phosphorus
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- forms part of DNA and RNA
- buffers the acidity of urine
- protection of acid/base balance of blood
- storage and transport of energy
- helps activate some proteins
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Widely distributed in natural foods eg dairy, meat, dried fruit, eggs, cereals.
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Potassium
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- nerve impulses
- muscle contraction
- regulates blood pressure
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Leafy green vegetables, tomatoes, cucumbers, zucchini, eggplant, pumpkin, root vegetables. Also moderately abundant in beans, peas, bananas, avocados, milk, yoghurt
Note: Potassium has a beneficial effect in offsetting the effects of sodium (salt) on blood pressure.
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Zinc
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- component of enzymes that help maintain structure of proteins and regulate gene expression
- needed for growth, immunity appetite and skin integrity
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Meats, fish, poultry, cereals, dairy foods.
Note: availability from animal sources is greater than that from plant sources so vegetarians need 50% higher intakes.
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