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Nutrition - A-Z of Minerals PDF Print E-mail

MINERAL

Best Food

Sources

Main

Functions

RNI

19-50y

MALE

RNI

19-50y

FEMALE

Calcium

Milk, yoghurt, cheese, tinned sardines with bones, almonds, sesame seeds

Healthy teeth and bones; vital for muscle and nerve function

700µg

700µg

Chloride

Table Salt

(Sodium Chloride)

Maintains fluid and electrolyte balance and essential for making stomach acid

2500mg

2500mg

Chromium

Red meat and liver, egg yolk, cheese, seafood and wholegrains

Helps regulate blood sugar and cholesterol levels

25µg

25µg

Copper

Shellfish, nuts and seeds, wholegrains, peas, prunes, mushrooms, bananas avocados

Red blood cell development; helps absorb iron from food: helthy bones and connective tissue

1.2mg

1.2mg

Fluoride

Toothpaste, tap water, tea

Protects against tooth decay

None set

None set

Iodine

Iodised table salt, seafood and commercially baked goods (bread/cakes)

Vital part of hormones produced by thyroid galnd

140µg

140µg

Iron

Lean red meat & liver, oily fish, egg yolk, dak green leafy vegetables, beans, dried fruit, iron fortified breakfast cereals, molasses

Essential part of haemoglobin which helps blood and muscles to deliver oxygen; important for immune system.

8.7mg

14.5mg

Magnesium

Wholegrain cereals, pulses, shellfish, nuts, sesame seeds, dried figs

Variety of functions including energy production, nerve function, muscle relaxation and bone and tooth health. Assists in regulating heart rhythm

300mg

270mg

Manganese

Nuts, wholegrain rice and bread, pulses, tea

Helps to form bone and connective tissue

1.4mg

1.4mg

Molybdenum

Liver, pulses, wholegrains

Essential part of enzymes; may help fight tooth decay

50-400µg

50-400µg

Phosphorus

Found in all plant and animal protein e.g. milk, cheese, red meat, nuts, seeds etc

Variety of functions including energy release in cells; essential for absorption of many nutrients

550mg

550mg

Potassium

Avocados, fresh and dried fruit, potatoes, citrus fruit, bananas and pulses.

Works with sodium to maintain fluid and electrolyte balance: to help regulate heartbeat and good nerve function

3500mg

3500mg

Selenium

Brazil nuts, avocados, lentils, tunafish, meat

An antioxidant mineral. Protects against cells against damage by free radicals

75µg

60µg

Sodium

Table salt (sodium cholride) tinned and packaged foods, shellfish, yeast extracts

Works with potassium to maintain fluid & electrolyte balance: vital for nerve and muscle function
1600mg1600mg

Zinc

Red meat, poultry, oysters(!), eggs, nuts and seeds

For normal growth, reproduction and a strong immune system. Assists actions of many enzymes.

9.5mg

7.0mg

Editorial by Jacqueline Boorman





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