Life Extension Vitamin D3 with Sea Iodine, 5000 IU, 60 Capsules

Our Price: $14.50

Nutritional scientists are calling on Americans to increase their vitamin D and Iodine intake. Life Extension Vitamin D3 with Sea Iodine accomplishes this without the harmful effects of sodium by using blended extracts of marine algae.

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Vitamin D

An avalanche of favorable studies has resulted in record numbers of Americans supplementing with vitamin D. Since it is virtually impossible to obtain adequate vitamin D from food sources, supplementation with 5,000-10,000 IU daily is required by many aging individuals.

Vitamin D has long provided significant support for healthy bone density.2-7 However, scientists have also validated the critical role that vitamin D plays in regulating healthy cell division and differentiation, and its profound effects on human immunity.8-15 These findings link a deficiency of vitamin D to a host of common age-related problems.


For many years, Americans have been warned to avoid table salt, and rightly so. Unfortunately, when we decrease our intake of iodized table salt, people can inadvertently reduce their iodine consumption to less than desirable levels. A series of studies conducted by the National Health and Nutrition Examination Survey (NHANES) demonstrate that urinary iodine levels have rapidly declined since the 1970s.

Iodine is one of life’s essential elements, and works to promote health. Its fundamental purpose is found in the formulation of the thyroid hormones triiodothyronine (T3) and thyroxine (T4).16 These hormones possess three and four atoms of iodine per molecule, respectively. The thyroid gland vigorously takes in iodide from the blood to produce and discharge these hormones into the blood.

Satrirically, those who keep abreast of their own health are commonly at greater risk to develop low levels of iodine.17 A possible explanation for this is that athletes and those involved in heavy labor empty their natural reserves of iodine when they break a sweat, boosting their dependency on it. Vegetarians likewise have a much higher risk of having lower iodine levels than those who eat meat, because plant-based foods have less iodine than animal-derived foods. One analysis showed suboptimal iodine levels in 25% of vegetarians and 80% of vegans.18

On a positive note, you can now eliminate iodized table salt without giving up the health benefits of iodine. Sea-Iodine is a cost-effective, exclusive concoction that health savvy people are able to take every day to promote ideal levels of iodine. The refined extracts in Sea-Iodine are obtained from the pure waters of Iceland and Nova Scotia, supplying more than 667% of the Recommended Daily Value of natural iodine.


Supplement Facts

Serving Size: 1 capsule

Servings Per Container: 60

Amount Per Serving
Vitamin D (as cholecalciferol) 125 mcg
Natural Iodine from:

Iodine [from Sea-Iodine™ Complex Blend (organic kelp and bladderwrack extracts, potassium iodide)]

1000 mcg
Other Ingredients: microcrystalline cellulose, vegetable cellulose (capsule), maltodextrin, modified food starch, vegetable stearate, silica, stearic acid.

Dosage and Use:

  • Take one capsule daily, or as recommended by a healthcare practitioner.
  • This product is best utilized when taken with fat-containing, low fiber meals.

Caution: Individuals consuming more than 2,000 IU/day of vitamin D (from diet and supplements) should periodically obtain a serum 25-hydroxy vitamin D measurement. Do not exceed 10,000 IU per day unless recommended by your doctor. Vitamin D supplementation is not recommended for individuals with high blood calcium levels. If you have a thyroid condition or are taking antithyroid medications, do not use without consulting your healthcare practitioner.


  • If pregnant, nursing, or taking medication, consult your physician before taking this product
  • Keep out of reach of children
  • Do not exceed recommended dose


1. Prevention and Treatment of Vitamin D Deficiency
2. Rev Rhum Engl Ed. 1996 Feb;63(2):135-40.
3. Proc Nutr Soc. 2001 May;60(2):283-9.
4. J Bone Miner Res. 2003 Jul;18(7):1217-26.
5. Proc Natl Acad Sci USA. 2002 Oct 15;99(21):13487-91.
6. Steroids. 2001 Mar-May;66(3-5):375-80.
7. Bone. 2006 Oct;39(4):946-53.
8. Anticancer Res. 2012 Jan;32(1):223-36.
9. Cancer Lett. 2011 Dec 19. [Epub ahead of print]
10. Am J Prev Med. 2011 Jul;41(1):68-74.
11. Clin Rev Allergy Immunol. 2011 Feb 1. [Epub ahead of print]
12. Med Hypotheses. 2011 Dec;77(6):1145-7.
13. Dermatoendocrinol. 2011 Jan;3(1):11-7.
14. Mol Cancer. 2011 May 18;10:58.
15. Clin Rev Allergy Immunol. 2011 Feb 1. [Epub ahead of print]
16. Gribble, G W. “Naturally occurring organohalogen compounds – A comprehensive survey.” (1996). Progress in the Chemistry of Organic Natural Products. 68:1–423.
17. Horm Metab Res. 2005 Sep;37(9):555-8.
18. Ann Nutr Metab. 2003;47(5):183-5.
19. MedlinePlus: Iodine in diet
20. Office of Dietary Supplements: Iodine


* These statements have not been evaluated by the Food and Drug Administration. This Product is not intended to diagnose, treat, cure or prevent any disease.


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