The secretion of thyroid hormones will be affected if Nancy's diet
is deficient in iodine. Particularly the thyroxine and triiodothyronine
hormones of the thyroid gland will be affected. These hormones contain traces
of iodine and a deficiency of this will result to diseases like, goiter and
cretinism (a delay in the developmental growth).
Iodine
deficiency is common in places where there is little or no supply of
iodine-rich food (e.g. seafood, fish). It is also common in mountainous places
or regions where food is grown in soil that is poor in iodine.
