- Formation and development of bones and teeth.
- Important in bone growth and maintenance.
- Calcium phosphate gives hardness and strength to bones and teeth.
- Essential factors of the clotting of blood.
- Important for the functioning of muscles and nerves.
- Responsible for activity of important enzymes.
- Milk and dairy products e.g. yoghurt, cheese.
- Calcium carbonate is added to flour by law.
- Small fish e.g. sardines, pilchards.
- Cereals and cereal products.
- Dried figs, nuts, parsley, watercress, treacle.
- Hard water
- Fruit and vegetables
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- Severe deficiency causes stunted growth and rickets in children, osteomalaicia in adults.
- Osteoporosis occurs mostly in older women after the menopause and it is when calcium is gradually lost from the bones and they become porous and can fracture easily.
- Muscles and nerves which do not form properly can result in a condition known as tetany.
Unlikely as excess is excreted
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- formation of bones and teeth.
- For the functioning of some enzymes
- Helps to synthesis protein
- Helps with the production of energy
- Plays an important role in many bodily functions e.g. muscle contraction
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