Life Extension®, Vitamins D and K with Sea-Iodine™, 5000 IU vitamin D, 2100 mcg K1, K2, 1000 mcg iodine, 60 capsules

Name: Life Extension®, Vitamins D and K with Sea-Iodine™, 5000 IU vitamin D, 2100 mcg K1, K2, 1000 mcg iodine, 60 capsules
Brand: Life Extension
SKU: 875219139
Price: 18 USD
Availability: InStock
Rating: 4.8 (975 reviews)

4.8 stars out of 975 reviews

(4.8)|

975 ratings

Key item features

Life Extension®, Vitamins D and K with Sea-Iodine™, 5000 IU vitamin D, 2100 mcg K1, K2, 1000 mcg iodine, 60 capsules
Support bone, thyroid and arterial health with Vitamins D and K with Sea-Iodine™.
Take one (1) capsule daily with food, or as recommended by a healthcare practitioner.
5000 IU of vitamin D3, 2100 mcg vitamins K1 and two forms of K2, 1000 mcg of iodine.
Promotes bone, thyroid and arterial health. Helps maintain healthy calcium balance.
1-Daily| G F| non-GMO

Specs

Primary ingredient
Vitamin D3
Health concern
Thyroid Support
Ingredient preference
Gluten-Free
Serving size
1 Capsule
Count per pack
60
Product usage frequency
Daily

Reviews summary

Pros

: Offers high-quality products at this price.
: Made with high-quality manufacturing standards.
: Provides a single supplement with multiple nutrients.
: Easy to ingest due to compact design.
: Helps regulate vitamin d levels in the body.

Generated by AI

Current price is $18.0030.0 ¢/count

Price when purchased online

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Sold by Life Extension Buyers Club IncPro Seller

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4.657072368421052 stars out of 5, based on 1217 seller reviews(4.7)

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About this item

Product details

Looking to get enough of the hard-to-find nutrients vitamin D, vitamin K, and iodine? Look no further. We’ve combined vitamin D3 with vitamin K and iodine for triple-action health support. Vitamin D supports immune health, healthy bone density, cognitive health and more. Vitamin K helps maintain your body’s calcium balance, and iodine is essential for the production of thyroid hormones. Get these vital nutrients in a convenient, once-daily supplement.

Life Extension®, Vitamins D and K with Sea-Iodine™, 5000 IU vitamin D, 2100 mcg K1, K2, 1000 mcg iodine, 60 capsules
Support bone, thyroid and arterial health with Vitamins D and K with Sea-Iodine™.
Take one (1) capsule daily with food, or as recommended by a healthcare practitioner.
5000 IU of vitamin D3, 2100 mcg vitamins K1 and two forms of K2, 1000 mcg of iodine.
Promotes bone, thyroid and arterial health. Helps maintain healthy calcium balance.
1-Daily| G F| non-GMO

info:

We aim to show you accurate product information. Manufacturers, suppliers and others provide what you see here, and we have not verified it.

Specifications

Primary ingredient

Vitamin D3

Health concern

Thyroid Support

Ingredient preference

Gluten-Free

Serving size

1 Capsule

Indications

Stop Use Indications

Individuals consuming more than 50 mcg (2,000 IU)/day of vitamin D (from diet and supplements) should periodically obtain a serum 25-hydroxy vitamin D measurement. Do not exceed 250 mcg 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 a vitamin K antagonist (e.g. warfarin), consult your healthcare practitioner 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. To report a serious adverse event or obtain product information, contact 1-866-280-2852.

Health Concern

Thyroid Support

Directions

Dosage

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

Warranty

Warranty information

None

Please be aware that the warranty terms on items offered for sale by third party Marketplace sellers may differ from those displayed in this section (if any). To confirm warranty terms on an item offered for sale by a third party Marketplace seller, please use the 'Contact seller' feature on the third party Marketplace seller's information page and request the item's warranty terms prior to purchase.

Ingredients

Inactive Ingredients

Microcrystalline Cellulose, Vegetable Cellulose (Capsule), Maltodextrin, Modified Food Starch, Dicalcium Phosphate, Stearic Acid, Silica.

Ingredients

Vitamin D3 (as cholecalciferol) 125 mcg Vitamin K activity from: 2100 mcg Vitamin K1 (as phytonadione) 1000 mcg Vitamin K2 (as menaquinone-4) 1000 mcg Vitamin K2 (as trans menaquinone-7) 100 mcg Iodine [from Sea-Iodine™ Complex Blend (organic kelp and bladderwrack extracts, potassium iodide)] 1000 mcg Other ingredients: microcrystalline cellulose, vegetable cellulose (capsule), maltodextrin, food starch-modified, dicalcium phosphate, stearic acid, silica.

Active Ingredients

Vitamin D3 (as cholecalciferol), Vitamin K activity [from Vitamin K1 (as phytonadione), Vitamin K2 (as menaquinone-4), Vitamin K2 (as trans menaquinone-7)], Iodine [from Sea-Iodine™ Complex Blend (organic kelp and bladderwrack extracts, potassium iodide)].

Active Ingredient Name

Warnings

Warning Text

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.

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Customer ratings & reviews

4.8 out of 5 stars

stars975 ratings788 reviews

How item rating is calculated

Reviews summary

Pros

: Offers high-quality products at this price.
: Made with high-quality manufacturing standards.
: Provides a single supplement with multiple nutrients.
: Easy to ingest due to compact design.
: Helps regulate vitamin d levels in the body.

Generated by AI

Filtered and sorted results would be available on the new 'Customer ratings & reviews' page.

Sort by |

Showing 1-3 of 788 reviews

Jul 30, 2025

Sylvia

Top Reviewer

Sold byLife Extension Buyers ClubDelivered byWalmart

5 out of 5 stars review

Verified Purchase

normally I would say that you need to see your doctor first. they didn't let me see a doctor. I only saw a nurse. she said I had a low functioning thyroid. and then she didn't prescribe anything. I got this as a last resort. I went from sleeping 18 hours a day to functioning like a human being again. I think this stuff is great.

Helpful?

Nov 29, 2025

Mala

Sold byLife Extension Buyers ClubDelivered byWalmart

5 out of 5 stars review

Verified Purchase

Small pills, easy to swallow, no aftertaste. Take separate from other pills. I combined it with other supplement and experienced some slight dizziness (I'm super sensitive to meds).

Helpful?

Dec 12, 2025

Stacey

5 out of 5 stars review

Seller Verified Purchase

No issues with labs

Been using this product for years and have had no issues with my D or thyroid levels. Use mostly starting in September through April, and sometimes a few times per week during warmer months, depending on how much sunshine I'm getting.

Review from Life Extension

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