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Minerals - Calcium and Iron (Calcium (Function (Main mineral, Makes bones…
Minerals - Calcium and Iron
Minerals are chemical substances found i plant and animal foods. They are needed by our bodies in small amounts everyday. Minerals are micronutrients.
Calcium
Function
Main mineral
Makes bones and teeth strong especially when becoming an adult
Vitamin D is needed to absorb calcium into the body
Needed to make muscles and nerves work properly
Enables blood clot
Main food sources
Flour
Soya
Fish
Green leafy vegetables
Milk products
Deficiency
Muscles and nerves wont work properly
Weakened bones and teeth causing rickets and oesteomalacia
No blood clot after an injury
Excess
If too much is absorbed organs may fail
Iron
Function
Vitamin C is needed to absorb iron in digestion
Needed to make haemoglobin to carry oxygen
Food sources
Green leafy vegetables
Red meat, kidney, liver
Egg
Lentils
Deficiency
Tiredness, weakness
Pregnant women need iron for babies
Anaemia
Excess
Can be a poison