II. Physiology
- Iodine (I) has atomic number 53 and atomic weight 126.90
- Non-metal in the halogen group
- Essential for Thyroid Hormone synthesis
III. Dosing: Recommended Daily Allowance (RDA)
- Men and women: 150 mcg daily
- Pregnancy: 220 mcg daily
- Lactation: 290 mcg daily
IV. Precautions
- Iodine intake >500 mcg daily offers no benefit
- Iodine intake >1100 mcg daily may result in toxicity (inhibits Thyroid Hormone synthesis)
V. Sources: Multivitamins
- Many Prenatal Vitamins contain 150 mcg Iodine
VI. Sources: Dietary
-
Iodized Salt (400 mcg per 1 tsp)
- Not all salt is iodized (check labeling)
- Dairy
- Cows Milk (60 mcg per 8 oz)
- Soy Milk
- Cheese
- Yogurt
- Ice Cream
- Seafood
- Pregnant women should avoid excessive fish (see Mercury Content in Fish)
- Saltwater Fish (e.g. Cod contains 100 mcg per 3 oz)
- Shellfish
- Miscellaneous
- Eggs
- Seaweed (e.g. kelp)
- Soy sauce
VII. Resources
VIII. References
- (2015) Presc Lett 22(5): 25-6
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iodine (on 12/21/2022 at Medicaid.Gov Survey of pharmacy drug pricing) | ||
IODINE 2% MILD TINCTURE | Generic OTC | $0.07 per ml |