Iodine is an essential micronutrient. The total body content of iodine is about 50 mg. The blood level is about 8 to 12 micro- grams/dl.
Functions
1. It is required for the synthesis of thyroid hormones
2. Minute amounts are required for growth, development and well being.
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Sources :
The best sources of iodine are sea foods (e.g. sea fish and sea salt) and codliver oil. Small amounts are present in milk, meat, cereals and vegetables.
Deficiency:
Deficiency of iodine leads to iodine deficiency disorders which include
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1. Goiter and hypothyroidism.
2. Retarded physical growth and mental development.
3. Spontaneous abortion and still birth.
4. Neurological cretinism.
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5. Myxoedematous cretinism.
Requirement: 150 micrograms per day.