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Healthy Eating An Introduction to Minerals


Introduction Minerals:

•occur in tiny quantities in the human body and help to keep it healthy. • are inorganic substances that occur in water, soil and rocks. • are taken up by plant roots and in turn go into animals and humans. Today’s diets may provide too little of some minerals and too much of others.


Calcium • Essential in hardening bones and teeth especially while growing up • Important for muscle, heart and digestive system

A lack of calcium can cause weakness in the bones and can eventually lead to disease in later life, which causes bones to become fragile, brittle and easily fractured. This is more common in women than men.

Good sources of calcium include: milk, yoghurt and cheese.


Iron Helps keep the blood healthy essential in the formation of haemoglobin, which binds to oxygen from the lungs and transports it around the body to tissues such as muscles.

Deficiency of iron in the body can lead to anaemia. This will cause people to feel tired and they may experience a loss in appetite.

Good sources include; red meat, fish, leafy green vegetables, whole grains (breakfast cereals and cereal products).


Sodium •When combined with chloride forms salt. •Sodium is required in the body to maintain fluid balance. •Sodium is essential for muscle and nerve activity.

•Deficiency in sodium is rare, but in hot climates excessive sweating can reduce the body’s salt resulting in headaches, nausea, diarrhoea and muscular cramps of legs and abdomen. •Sodium intake has to be monitored and not consumed in large amounts as it is associated with high blood pressure.

X To avoid high intakes of salt don’t add table salt to your food, reduce the amount of salt in cooking, and restrict salty foods, e.g. salted nuts and crisps, pickles, bacon and ham.

Minerals Presentation  

Healthy Eating - An Introduction to Minerals •occur in tiny quantities in the human body and help to keep it healthy. • are inorganic substa...

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