Minerals in humans

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Potassium

Controls ionic balance of fluid in cells

Heart and muscle activity

Transmission of nerve impulses

Weakening of muscles

Psychological disorders

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Sodium

Activates enzymes

Constituent of digestive juice

Maintains constant osmotic pressure in cells

Transmission of nerve impulses

Respiratory disorders

Nausea

Cramps

Diarrhoea

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Magnesium

Constituent of bones and teeth

Controls nerve activity in skeletal muscles

Helps in metabolic activities

High heart beat

Nerve irritability

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Calcium

Growth of bones and teeth

Blood clotting

Proper nerve function

MIlk production

Absorbing Vitamin B

Weakening of bones and teeth

Growth disorders

Osteoporosis

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Phosphorous

Growth of bones and teeth

Constituent of nucleic acid

For carbohydrate and fat metabolism

Instant release of energy in muscles and nerves

Weakening of bones and become fragile

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Iron

Synthesis of haemoglobin

Storing oxygen in muscles

Constituent of enzymes

Anaemia

Sleepiness

Hypoactive nature

Weakness in psychological development

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Iodine

Synthesis of thyroxin hormone

Affects development of intelligence

Lethargic attitude towards studies

Limits body height

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