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Life Extension

Vitamins D and K with Sea-Iodine

Item: LE310

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Retail $24.00
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60 Caps

  • Natural iodine source from kelp



  • 5,000 IU vitamin D in each capsule



  • 2,100 mcg vitamin K per serving


Vitamins D and K with Sea Iodine™ from Life Extension features 5,000 IU of vitamin D, 2,100 mcg of vitamin K from menaquinone-4 and menaquinone-7, plus 1,000 mcg of natural iodine from Sea-Iodine™ Complex. This complex features organic kelp, bladderwrack extract and potassium iodide. 60 capsules.

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Product Description:

Vitamins D and K with Sea-Iodine

  • Natural iodine source from kelp



  • 5,000 IU vitamin D in each capsule



  • 2,100 mcg vitamin K per serving


Vitamins D and K with Sea Iodine™ from Life Extension features 5,000 IU of vitamin D, 2,100 mcg of vitamin K from menaquinone-4 and menaquinone-7, plus 1,000 mcg of natural iodine from Sea-Iodine™ Complex. This complex features organic kelp, bladderwrack extract and potassium iodide. 60 capsules.

Product Label:

Vitamins D and K with Sea-Iodine

Supplement Facts

Serving Size 1 Capsule

  Amount Per Serving % Daily Value
Vitamin D3 (as cholecalciferol) 5,000 IU 1,250%
Vitamin K activity from: 2,100 mcg 2,625%
Vitamin K1 (as phytonadione) 1,000 mcg  
Vitamin K2 (as menaquinone-4) 1,000 mcg  
Vitamin K2 (as menaquinone-7) 100 mcg  
Iodine [from Sea-Iodine™ ComplexBlend (organic kelp and bladderwrack extracts, potassium iodide)] 1,000 mcg 667%

Other ingredients: microcrystalline cellulose, vegetable cellulose (capsule), maltodextrin, modified food starch, dicalcium phosphate, stearic acid, silica.

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

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

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.

Store tightly closed in a cool, dry place.

WARNINGS:

  • 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.

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

Terms and Ingredient Definitions

Vitamins D and K with Sea-Iodine

Swanson $18.00
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Shipping Restrictions

Countries with restrictions on this product:

  • Canada

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States with restrictions on this product:

  • Alberta
  • British Columbia
  • Manitoba
  • New Brunswick
  • New Foundland
  • Northwest Territory
  • Nova Scotia
  • Nunavut
  • Ontario
  • Prince Edward Island
  • Quebec
  • Saskatchewan
  • Yukon Territory

More information on shipping restrictions

Life Extension Vitamins D and K with Sea-Iodine Reviews

Summary of Customer Ratings & Reviews

Customer Ratings & Reviews

Rated 4.8 out of 5 by 20 reviewers.
Rated 4 out of 5 by Good product Good combination of important supplements December 31, 2015
Rated 5 out of 5 by One that works This product has worked for me in raising my "D" level when I have been trying for over 3 years. Very happy with the results. December 25, 2015
Rated 5 out of 5 by Fixed my Vitamin D deficiency! The Vitamin D deficiency on my blood tests has disappeared. What more can one ask? :-) December 17, 2015
Rated 5 out of 5 by Eliminated my Vitamin D Deficiency Eliminated myvitamin D deficiency. What more can I ask? August 2, 2015
Rated 4 out of 5 by helpful in maintaining good levels of D Used daily has proven beneficial. March 2, 2015
Rated 5 out of 5 by Great combo This is a great product that my husband and I use year round. Illiminates the need for a seperate K2 and iodine supplement. February 15, 2015
Rated 5 out of 5 by A good combination I am happy to find these particular supplements together. February 1, 2015
Rated 5 out of 5 by Better then you might think I use this every morning with my thyroid prescription. I take less thyroid and it is easier to manage if I take this supplement. I noticed a large improvement overall. November 30, 2014
Rated 5 out of 5 by It's been a life-saver for me! Over a few years, I developed an itchy ear, which then became scaly. Then the scaly area spread to behind my ear, then back into my scalp. About that time I read in the Life Extension Magazine about the effects of Vitamin D deficiency, so I got a blood test which showed that I had the deficiency. So I began taking Vitamin D3. Then I heard that it should be taken with Vitamin K, so I added that, then began taking the two in combination. I was also taking iodine separately, so when I saw iodine combined with the D3 and K, I immediately began taking them. I was very pleased with how quickly the scaly and itchy skin cleared up! December 8, 2013
Rated 4 out of 5 by Fewer pills I'm an aging male and very health conscious. Barring an accident, I expect to live many more years and in good health! As you might imagine, I take many supplements (too many I think but I'm almost down to necessities). I've been taking Vitamin D for years and this adds Vitamin K and, since my prior Vitamin D supplement required you to take 2 capsules a day and this is only one, I glommed onto it right away (I did take the remainder of the prior one tho). September 7, 2013
Rated 5 out of 5 by Vit D, does it's job, blood test proof. Enjoy the monthly delivery, so I don't have to worry about running out, which also makes it very reasonably priced. June 10, 2013
Rated 5 out of 5 by Three supplements in one capsule Makes it easy with three supplements in one. February 17, 2013
Rated 5 out of 5 by Great Combo! Nice combination of 3 important nutrients most of the general population is deficient in. Thanks for combining these into one convenient capsule! December 17, 2012
Rated 5 out of 5 by Vitamins D and K with Sea-Iodine, 60 cap twice a day, morning and evening December 9, 2012
Rated 4 out of 5 by Great value! I had low Vit D levels that I increased over time and now able to keep it in the good range with this supplement. December 9, 2012
Rated 5 out of 5 by "Best of both Worlds" You get beneficial amounts of each nutrient in one capsule (if you're going to take both, which many of us should). November 18, 2012
Rated 5 out of 5 by The Best Combo on the Market A physician prescribed the exact same dosages from a compounding pharmacy. I am a 63 yr old male, 5'7 and 157 pounds with no bone loss issues. Recommended for anti-aging benefits, etc. This LEF formulation is effective and a lot cheaper than the prescribed product. The quality is solid! November 8, 2012
Rated 5 out of 5 by I love this combination! It is important to take Vitamin K with Vitamin D. Iodine is also good prevention from diseases that I can't mention due to restrictions by the FDA. November 4, 2012
Rated 5 out of 5 by repeat customer I take one capsule at bed-time. My bloodtest shows that I have higher Vit.D levels now. I also take two regular Vit.D-3 - 1000 I.U. per day. October 29, 2012
Rated 5 out of 5 by I have bought this product many times. I take one capsule daiy at night time. October 15, 2012
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