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

By Life Extension

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The item is currently out of stock and replenishment is unconfirmed.

Out of Stock - Discontinued
  • Product Code: LEX-15726
  • UPC Code: 737870157267
  • Package Quantity: 60 Capsules
  • Dimensions: 2.1 x 2.1 x 3.6 in, 0.15 lbs (0.07 kg)
  • Important Note:

    This product has been discontinued and replaced by LEX-17416.

Product Overview

  • For Longer Life
  • Vitamin D3 with Iodine-Rich Sea Plant Extracts and Vitamin K2
  • Dietary Supplement

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 & trade;. 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 & trade; 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), maltoxdextrin, modified food starch, dicalcium phosphate, vegetable stearate, silica.

Due to the source of the kelp, this product may contain fish and crustacean shellfish.


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 hypercalcemia (high blood calcium levels). People with kidney disease, certain medical conditions (such as hyperparathyroidism or sarcoidosis), and those who use cardiac glycosides (digoxin) or thiazide diuretics should consult a physician before using supplemental vitamin D. 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 provide 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.

Visit Manufacturer's Website
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 meaquinone-4)
Vitamin K2 (as meaquinone-7)

1100 mcg
1000 mcg
100 mcg

Natural Iodine from
Sea-Iodine Complex Blend
Nova Scotian Kelp (Ascophyllum nodosum),
Icelandic Kelp (Laminaria digitata),
Nova Scotian Dulse (Palmaria palmata)
1,000 mcg 667%

iHerb Customer Reviews

5 Stars
4 Stars
3 Stars
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1 Stars

Great Combo of Critical Nutrients

Posted by Reviewer2024323 on Dec 16, 2012

I was taking 4000 IU of Vit D, 100 mcg of Vit K (7), and 1000 mcg of Iodine for the past few years. These capsules are great because now all 3 are combined into 1 so it's easier for me to take...and I get even more beneficial levels of the D and K with this supplement. Great product and without it, I would barely have any of these 3 nutrients in my body which would be a disaster over time. Research each of the 3 and you will see why. The only thing that could make this supplement even better would be to add ubiquinol to it! Then I would only have to take one more supplement daily in addition to this one...fish oil.

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6 people found the following review helpful

This product has it all

Posted by sweetheart on Jan 18, 2013

I love the combo in this product. These are a must for those who want to have strong and healthy teeth!

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3 people found the following review helpful


Posted by Reviewer1246815 on Jul 02, 2013

This is a convenient way of taking the vitamins D and K which need to be taken synergistically

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1 person found the following review helpful

Great capsules

Posted by Reviewer2673813 on Jan 01, 2014

These are a great way to take D3

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Perfect combo!

Posted by 5559645133637243725 on Sep 11, 2014

Such a great product, this is a perfect combination of stuff.

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