Iodine

It inherits it’s name from the Greek word “ion” meaning violet being violet in color.

Functions

  • Production of thyroid hormone.
  • Prevents goitre.
  • Antiseptic
  • Maintains healthy hair, skin & nails.

Vital part of hormones secreted by the thyroid gland.

Sources

  • Iodized salt
  • Fish
  • Shellfish
  • Sea animals (cod, haddock, perch)
  • Seaweed
  • Kelp
  • Onion
  • Mushrooms
  • Lettuce
  • Spinach
  • Green pepper
  • Pineapple
  • Peanuts
  • Whole wheat bread

Deficiency

  • Goitre
  • Hypothyroidism which may lead to slower metabolism, fatigue, weight gain , dry hair and skin, decreased resistance to infection and thyroid enlargement.

Toxicity

  • No toxicity of iodine from dietary sources.
  • High intake may affect hormone activity.

Recommended dietary allowances