II. Physiology

  1. Iodine (I) has atomic number 53 and atomic weight 126.90
  2. Non-metal in the halogen group
  3. Essential for Thyroid hormone synthesis

III. Dosing: Recommended Daily Allowance (RDA)

  1. Men and women: 150 mcg daily
  2. Pregnancy: 220 mcg daily
  3. Lactation: 290 mcg daily

IV. Precautions

  1. Iodine intake >500 mcg daily offers no benefit
  2. Iodine intake >1100 mcg daily may result in toxicity (inhibits Thyroid hormone synthesis)

V. Sources: Multivitamins

  1. Many Prenatal Vitamins contain 150 mcg Iodine

VI. Sources: Dietary

  1. Iodized salt (400 mcg per 1 tsp)
    1. Not all salt is iodized (check labeling)
  2. Dairy
    1. Cows Milk (60 mcg per 8 oz)
    2. Soy Milk
    3. Cheese
    4. Yogurt
    5. Ice Cream
  3. Seafood
    1. Pregnant women should avoid excessive fish (see Mercury Content in Fish)
    2. Saltwater Fish (e.g. Cod contains 100 mcg per 3 oz)
    3. Shellfish
  4. Miscellaneous
    1. Eggs
    2. Seaweed (e.g. kelp)
    3. Soy sauce

VIII. References

  1. (2015) Presc Lett 22(5): 25-6

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Cost: Medications

iodine (on 8/17/2016 at Medicaid.Gov Survey of pharmacy drug pricing)
IODINE 2% MILD TINCTURE Generic OTC $0.08 per ml

Ontology: Iodine (C0021968)

Definition (NCI_NCI-GLOSS) An element that is necessary for the body to make thyroid hormone. It is found in shellfish and iodized salt.
Definition (NCI) An element with atomic symbol I, atomic number 53, and atomic weight of 126.90.
Definition (MSH) A nonmetallic element of the halogen group that is represented by the atomic symbol I, atomic number 53, and atomic weight of 126.90. It is a nutritionally essential element, especially important in thyroid hormone synthesis. In solution, it has anti-infective properties and is used topically.
Definition (CSP) nonmetallic element of the halogen group that is represented by the atomic symbol I, atomic number 53, and atomic weight of 126.90; it is a nutritionally essential element and is especially important in thyroid hormone synthesis; in solution, it has anti-infective properties and is used topically.
Concepts Pharmacologic Substance (T121) , Element, Ion, or Isotope (T196)
MSH D007455
SnomedCT 325330005, 44588005
LNC LP15157-8, MTHU009375
English Iodine, Jodum, I, iodine, iodine (vaginal) (medication), iodine (medication), vaginal preparations iodine vaginal, iodine (vaginal), IODINE, Iodine [Chemical/Ingredient], iodine product, iodines, iodine products, I element, I- element, Iodine product, Iodine (substance), Iodine product (product), Iodine, NOS, Iodine product (substance)
Swedish Jod
Czech jod, jód
Finnish Jodi
Russian IOD, ИОД, ЙОД
Spanish producto con yodo (producto), yodo (producto), producto con yodo, ioduro, producto (producto), ioduro, producto (sustancia), ioduro, producto, yodo (sustancia), yodo, Yodo
Croatian JOD
Latvian Jods
Polish Jod
Norwegian Jod
French Iode
German Iod
Italian Iodio
Portuguese Iodo