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Chapter 6 : Iodine

Iodine arrow_upward

  • Iodine is very much essential for energy production and proper function of thyroid gland in our body.
  • It affects production of thyroid hormones, memory, strength, metabolism and speech.
  • Iodine is good for preventing:
    • Hypothyroidism
    • Memory loss
    • Weakness
    • Miscarriages
  • In case of Iodine deficiency, natural food sources which are rich in Iodine (i.e. iodized salt, sea food, cow milk, soybean, strawberry etc.) must be included into diet.

  • Functions of Iodine arrow_upward

  • Iodine is necessary to form thyroid hormones, which regulate the body's metabolism.
  • It also promotes normal cell function, keeps skin hair and nails healthy and is important for overall growth and development.

  • Sources of Iodine arrow_upward

  • The best sources of iodine include:
    • Saltwater fish
    • Seaweed
    • Iodized salt
  • Foods grown near coastal areas also contain iodine.
  • In other foods, content varies according to soil and water content.
  • One-half teaspoon of iodized salt provides almost enough iodine to reach daily needs.

  • Daily Dose of Iodine arrow_upward





    0-6 months

    2,200 mcg

    7 months- 1 year

    130 mcg


    1-8 years

    90 mcg

    9 - 13 years

    120 mcg

    14 - 18 years

    150 mcg


    18 years and up

    150 mcg

    Pregnant females

    220 mcg

    Breastfeeding women

    290 mcg

    Deficiency Symptoms of Iodine arrow_upward

  • Goiter:
    • Goiter is the enlargement of the thyroid gland as a result of iodine deficiency.
    • The goiter continues to enlarge in an attempt to compensate for the large demand of thyroid hormone.
    • Goiter appears as a growth in the neck region and may contain nodules.
    • Children with goiter may develop symptoms of choking or experience trouble swallowing and breathing.
  • Hypothyroidism:
    • Hypothyroidism is a condition defined by the thyroid gland’s inability to produce essential hormones.
    • Iodine is necessary to produce thyroid hormones; therefore an iodine deficiency can lead to hypothyroidism.
    • Hypothyroidism rarely causes symptoms in the early stages, but if left untreated it can cause a number of potentially serious health conditions.
  • Pregnancy related illness:
    • Pregnant or nursing mothers who do not get enough iodine in their diets may experience miscarriage, stillbirth, preterm delivery and congenital abnormalities in their babies.
    • Children may later develop severe developmental problems such as mental retardation and problems with growth, hearing and speech.

    Excessive Intake and Toxicity Symptoms arrow_upward

  • Iodine is rapidly eliminated from the body, so high intake or toxicity is not very likely.
  • But if your diet is supplemented with too much iodine you could have problems with acne or skin rashes.

  • Thank You from Kimavi arrow_upward

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