Vitamin D3 with Sea-Iodine» 5,000 IU
60 capsules | Item Catalog Number: 01758
Vitamin D3 can be synthesized by humans in the skin upon exposure to ultraviolet-B (UVB) radiation from sunlight. But, due to the winter season, weather conditions, and sun block, the bodyÍs ability to produce optimal vitamin D levels may be inhibited. 1These factors point to the value of taking a daily vitamin D supplement.
Vitamin D has long provided significant support for healthy bone density. 2-8 However, scientists havealso validated the critical role that vitamin D plays in regulating healthy cell division and differentiation, and its profound effects on human immunity. 9-15These findings link a deficiency of vitamin D to a host of common age-related problems.
The current RDA is only 600 IU. As a result of startling evidence of a widespread vitamin D deficiency, prominent nutritional scientists are calling on Americans to increase their vitamin D intake to 1,000 IU per day and higher. Currently, most experts in the field believe that intakes of between 1,000 and 10,000 IU for adults will lead to serum 25(OH)D levels above those indicative of vitamin D deficient levels, at approximately 80 nmol/L or 32 ng/mL.
Life Extension recommends that healthy adults supplement each day with at least 2,000 IU of vitamin D. Elderly adults may benefit from higher doses such as 5,000 IU daily up to 10,000 IU daily. The objective of taking a vitamin D supplement is to achieve an optimal 25-hydroxy vitamin D blood level of between 50-80 ng/mL.
The algae found in Sea-Iodine» come from the pristine waters of Iceland and Nova Scotia, providing you with over 667% of the Recommended Daily Value of natural iodine.
Iodine is a health-promoting trace element essential for life. Its primary biological role lies in the production of the thyroid hormones triiodothyronine (T3) and thyroxine (T4). 16 T4 and T3 contain four and three atoms of iodine per molecule, respectively. The thyroid gland actively absorbs iodide from the blood to make and release these hormones into the blood.
Iodine happens to be found abundantly in sea vegetables and plants. In areas where no marine foods are eaten, people have lower iodine levels. 17 For this reason, US commercial salt makers have long added iodine to deliver this key ingredient to your diet. However, we now know the dangers associated with eating too much table salt, which resurrects the dilemma of where to get healthy sources of iodine.
Ironically, health-conscious people are often the most likely to develop low iodine levels. 18 One reason is that athletes and people engaged in heavy physical effort deplete their natural stores of this trace mineral through perspiration. Vegetariansalso have a substantially greater likelihood of low levels of iodine than carnivorous people, since foods of plant origin are less rich in iodine than animal-derived foods. One study demonstrated iodine deficiency in 25% of vegetarians and an incredible 80% of vegans. 19
For those who would like the convenience and economy of taking vitamin D along with their Sea-Iodine» all in one pill, Life Extension offers Vitamin D3 with Sea-Iodine ».
1. Photochem Photobiol. 2007 Mar-Apr;83(2):459-63.
2. J æ Bone æ Miner Res. æ2004 Aug;19(8):1221-30.
3. J Bone Miner Res. æ2006 Mar;21(3):397-405.
4. Bone. æ2008 May;42(5):996-1003.
5. Steroids. 2001 Mar-May;66(3-5):375-80.
6. Bone. 2006 Oct;39(4):946-53.. Am J Clin Nutr. æ2008 Aug;88(2):513S-519S.
8. J Clin Endocrinol Metab. æ2004 Jan;89(1):76-80.
9. Am J Prev Med. 2011 Jul;41(1):68-74.
10. Proc Nutr Soc. æ2012 Feb;71(1):50-61.
11. Med Hypotheses. 2011 Dec;77(6):1145-7.
12. Dermatoendocrinol. 2011 Jan;3(1):11-7.. Mol Cancer. 2011 May 18;10:58.
14. J Invest Dermatol. æ2012 Dec;132(12):2762-9.
15. Anticancer Res. 2012 Jan;32(1):223-36.
16. Pak J Biol Sci. æ2011 Jan 1;14(1):1-12.
17. J Nutr. æ2008 Nov;138(11):2060-3..
18. Horm Metab Res. 2005 Sep;37(9):555-8.
19. Ann Nutr Metab. 2003;47(5):183-5.
Serving: Size: 1 capsule
Servings Per Container: 60
Amount Per Serving:
Vitamin D (as cholecalciferol) 5000 IU
Natural Iodine from 1,000 mcg
Sea-Iodine» Complex Blend æ
Nova Scotian Kelp (Ascophyllum nodosum)
Icelandic Kelp (Laminaria digitata),
æ Nova Scotian Dulse (Palmaria palmata)
Other ingredients: microcrystalline cellulose, vegetable cellulose (capsule), maltodextrin, modified food starch, vegetable stearate, silica.
Due to the source of the kelp, this product may contain fish and shellfish.
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.
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.