Iodine (Leaving Cert Home Economics): Flashcards
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Practise the cards
15 cards from this deck
Marine foods & iodine
Marine foods & iodine
Rich sources; absorb iodine from seawater
Best natural iodine sources
Best natural iodine sources
Seafood (fish, seaweed, shellfish), dairy, eggs
What is iodised salt?
What is iodised salt?
Table salt with added iodine
Iodine's role in thyroid
Iodine's role in thyroid
Building block for thyroid hormones T4 and T3
Two thyroid hormones
Two thyroid hormones
Thyroxine (T4) and triiodothyronine (T3)
What do thyroid hormones regulate?
What do thyroid hormones regulate?
Metabolism (how fast body uses energy)
Critical periods for iodine
Critical periods for iodine
Pregnancy and early childhood (for brain development)
What is goitre?
What is goitre?
Enlargement of thyroid gland (swelling in neck)
Hypothyroidism effect
Hypothyroidism effect
Metabolism slows down significantly
What is cretinism?
What is cretinism?
Severe iodine deficiency in infancy
Daily iodine for adults
Daily iodine for adults
150 micrograms
Iodine chemical group
Iodine chemical group
Halogen (non-metallic element)
Iodine stability in cooking
Iodine stability in cooking
Stable; remains intact during cooking/processing
What are goitrogens?
What are goitrogens?
Substances that interfere with iodine absorption
Foods with goitrogens
Foods with goitrogens
Cruciferous veg: cabbage, broccoli, cauliflower, sprouts