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Life Extension, Vitamins D and K with Sea-Iodine, 60 Capsules (Discontinued Item)

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Life Extension, Vitamins D and K with Sea-Iodine, 60 Capsules (Discontinued Item)

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Life Extension, Vitamins D and K with Sea-Iodine, 60 Capsules (Discontinued Item)

Out of Stock - Discontinued
  • Shipping Weight:
    0.12 lbs
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  • Product Code: LEX-17416
  • UPC Code: 737870174165
  • Dimensions:
    3.8 x 1.9 x 1.9 in, 0.1 lbs
    Switch to Metric units
Product Overview


  • Foundation for Longer Life
  • Iodine with Sea Plant Complex
  • Dietary Supplement

Vitamins D and K with Sea-Iodine

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.

Overlooked by almost everyone (except Life Extension members) is the critical importance of vitamin K. If one is concerned enough about their health to take higher dose vitamin D, it seems absurd to miss out on the benefits of vitamin K. For instance, vitamin D facilitates calcium absorption into the bloodstream and thus plays an important role in maintaining bone density. Less recognized is the need for vitamin K to transport calcium from the bloodstream into the bone. Vitamin K is also required by calcium-regulating proteins in the arteries. Together these two vitamins help maintain youthful calcium skeletal distribution while promoting vascular health.

Vitamin K can be found in small amounts in the diet, but obtaining the desired higher potencies requires supplementation. Many Life Extension members obtain optimal potencies of long-acting vitamin K in the Super Booster or Super K formulations. An increasing number of new members, however, are asking for high-potency vitamin D—but are not taking any supplemental vitamin K.

To directly address this problem, Life Extension has put together a formula called Vitamins D and K with Sea-Iodine. Like vitamins D and K, few Americans obtain optimal amounts of iodine. As people seek to limit their salt intake, this deficit is exacerbated since iodized salt is the principal source of this mineral in many diets. We expect the issue of iodine insufficiency to receive more media attention as new studies uncover the problems this creates. Sea-Iodine is included in this formula to provide iodine without the harmful effects of sodium.

Suggested Use

Read the entire label and follow the directions carefully prior to use.

Take one (1) capsule once daily with food, or as recommended by a healthcare practitioner.

Other Ingredients

Microcrystalline cellulose, vegetable cellulose (capsule), maltodextrin, modified food starch, dicalcium phosphate, vegetable stearate, silica.


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 you are taking anti-coagulant or anti-platelet medications, or have a bleeding disorder, consult with your healthcare provider before taking this product.

  • Keep out of reach of children.
  • Do not exceed recommended dose.
  • Do not purchase if outer seal is broken or damaged.
  • When using nutritional supplements, please consult with your physician if you are undergoing treatment for a medical condition or if you are pregnant or lactating.

Store tightly closed in a cool, dry place.

To report a serious adverse event or obtain product information, contact 1-866-280-2852.

Supplement Facts
Serving Size: 1 Capsule
  Amount Per Serving % Daily Value
Vitamin D (as cholecalciferol) 5000 IU 1250%
Vitamin K activity from:
Vitamin K2 (as menaquinone-4)
Vitamin K2 (as menaquinone-7)
1100 mcg
1000 mcg
100 mcg
Iodine [from Sea-Iodine Complex
(organic kelp and bladderwrack
extracts, potassium iodide)]
1,000 mcg 667%
iHerb Customer Reviews

Would be 5 star if it included Vitamin A

Posted by iHerb Customer on Jan 28, 2015 | Verified Purchase

Would be 5 star if it included Vitamin A like DaVinci Labs does...

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A product that works...

Posted by iHerb Customer on Jan 21, 2015 | Verified Purchase

I have taken a few different Vit D supplements in differing forms over the past 5 years when I discovered I had chronically low levels. I started taking this capsule during my last pregnancy because of the Vit K2 included. My blood tests showed that my Vit D levels are at a great level still compared to my previous blood test several years ago when I took a liquid supplement.

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Great formulation

Posted by iHerb Customer on Jan 11, 2015 | Verified Purchase

I have been buying this product for myself and family for a few years now. It is well balanced and effective. My elderly family member in her 80 remarked that her nails are stronger since taking this. I highly recommend it.

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same good product

Posted by iHerb Customer on Oct 28, 2014 | Verified Purchase

The bottle is the same size but the pills are now much smaller. However, the analysis of each pill is the same, so the difference must be less filler. I like this product very much because it has vitamin K2, which along with vitamin D is crucial for your body to be able to use calcium where it is needed

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Vitamin d &K

Posted by iHerb Customer on Oct 09, 2014 | Verified Purchase

I was surprised to see 3/4 of the bottle empty.

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