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  1. What may be the cause of malfunctioning of thyriod gland ?
    1. Iodine deficiency
    2. Iron deficiency
    3. Calcium deficiency
    4. Vitamin C
Correct Option: A

The main reason for thyroid malfunctioning is the deficiency of Iodine. Since iodine is a trace mineral found in food that combines with Tyrosine to make both T3 and T4, both of the hormones produced in the thyroid, a lack of it can lead to under production of thyroid hormones.



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