Send to

Choose Destination
See comment in PubMed Commons below
Endocr Pract. 2014 Mar;20(3):232-5. doi: 10.4158/EP13310.OR.

Iodine content of U.S. weight-loss food.

Author information

Department of Internal Medicine, St. Elizabeth Medical Center/Tufts University, Boston, Massachusetts.
Section of Endocrinology, Diabetes, and Nutrition, Boston University School of Medicine, Boston, Massachusetts.
Division of Endocrinology, Department of Medicine, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, California.



The recommended iodine intake is 150 μg/day in adults, 220 μg/day during pregnancy, and 290 μg/day during lactation. Individuals exclusively consuming restricted diets as part of a weight-loss program may be at risk for mild to moderate iodine deficiency. The purpose of this study was to assess the iodine content in meals and snacks from 3 U.S. commercial weight-loss programs, all of which are intended to be the sole source of dietary intake during the desired weight-loss period.


The iodine contents in the products representing 1 week of all meals and snacks from 3 U.S. commercial weight-loss programs were measured by spectrophotometry. The measured total iodine content in 1 week's worth of food from each program is reported as an average level per day.


A total of 53 total items were analyzed (29 different items [7 breakfasts, 7 lunches, 7 dinners, 6 snacks, 2 desserts] from Jenny Craig®, 21 different items [7 breakfasts, 7 lunches, 7 dinners] from Nutrisystem®, and 3 different items [1 breakfast, 1 lunch, 1 dinner; each to be intended to be eaten daily for 1 week] from Medifast®). Daily iodine content (mean ± SD) of meals and snacks from the weight-loss programs were 34.2 ± 1.2 (Jenny Craig®), 12.2 ± 0.7 (Nutrisystem®), and 70.1 ± 1.1 (Medifast) μg/day.


These results indicate that the dietary content in the foods from 3 U.S. commercial weight-loss programs is far less than the recommendations for iodine intake of 150 μg/day in nonpregnant, nonlactating adults. Individuals following each weight-loss program should be advised to take a multivitamin containing 150 mg of iodine daily.

[Indexed for MEDLINE]
Free PMC Article
PubMed Commons home

PubMed Commons


    Supplemental Content

    Full text links

    Icon for Allen Press, Inc. Icon for PubMed Central
    Loading ...
    Support Center