Hugo Dover

"Very quick delivery. Used 3 times, each order arrived the next day before 12:00. Product quality is exactly as described."

Hugo Dover Verified
Elina Goulliard

"Reliable & original products, with fast next day delivery. Have been using Welzo for over a year now."

Elina Goulliard Verified
Elizabeth Moore

"Welzo is great, lots of support from customer service who are easy to get a hold of and quick delivery."

Elizabeth Moore Verified

Vitamins D and K with Sea-Iodine, 60 Capsules - Life Extension

1 Reviews
£27.72

Life Extension Vitamins D and K with Sea-Iodine is a once-daily supplement containing Vitamin D3, vitamin K, and iodine, which support bone, immune, cardiovascular, and cognitive health.

Delivery 10 bought this week

Quantity

4+Save 5% 4Save 5%
Verified Authenticity
Money-Back Guarantee
Easy Returns

100% Money back guarantee, no questions asked

Secure Transaction

VISA Pay AMEX Pay
Excellent Trustindex

Fast UK delivery from £3.99

Order within for next-day delivery

As seen in

Life Extension Vitamins D and K with Sea-Iodine is a once-daily supplement containing Vitamin D3, vitamin K, and iodine, which support bone, immune, cardiovascular, and cognitive health. It delivers 125 mcg (5,000 IU) of vitamin D3, 2100 mcg of vitamin K, and 1000 mcg of iodine for optimal nutrient balance.

Vitamin D and vitamin K work together to strengthen bones and prevent calcium buildup in arteries. Iodine from Sea-Iodine™ supports thyroid function and cognitive performance. This advanced formula is ideal for those who want to enhance overall wellness and maintain essential nutrients for daily health.

A study in The Journal of Clinical Endocrinology & Metabolism confirmed that vitamins D and K together improve bone density and calcium metabolism.

Benefits:

  • It supports bone strength and inhibits calcium buildup.
  • Promotes immune and cardiovascular health.
  • Enhances cognitive function and thyroid support.
  • Includes 1,000 mcg of Sea-Iodine™ for optimal thyroid function.

Strengthen your bones, boost immunity, and support cognitive health with Life Extension Vitamins D and K with Sea-Iodine!

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

GTIN
737870204060
Manufacturer
Life Extension
Best buy
6 to 24 months+

United Kingdom & Rest of the World Shipping Details:
Same day dispatch for orders placed by 2pm (Orders after 2pm dispatched next working day).

Free shipping on orders over £50 to the UK.

Returns: Our products are meant to make you feel healthy and at your best. If you need to return your item, you can do so free of charge within 14 days in the same original and unopened packaging. Subject to T&C's.

Welzo is a UK-based health platform. Orders ship from the UK.

Take one capsule daily with food, or follow your healthcare practitioner's advice. For 2 years and over\, 4 berries daily with food\, or as directed by your health care professional. Please ensure child chews each gummy thoroughly.

Please consult the product packaging for accurate instructions on how to use the product.

Supplement Facts
Serving Size: 1 Capsule
Amount Per Serving%Daily Value
Vitamin D3 (as cholecalciferol)125 mcg625%
Vitamin K activity from: Vitamin K1 (as phytonadione) Vitamin K2 (as menaquinone-4) Vitamin K2 (as all-trans menaquinone-7)2100 mcg 1000 mcg 1000 mcg 100 mcg1750%
Iodine [from Sea-Iodine Complex Blend (organic kelp and bladderwrack extracts, potassium iodide)]1,000 mcg667%
1. Vitamin D and K are essential vitamins that play a crucial role in maintaining strong bones and teeth, as well as promoting healthy immune function.
2. Sea-Iodine, a natural source of iodine, helps support proper thyroid function and metabolism, contributing to overall energy and vitality.

Part of the Welzo System™

Test, supplement, enhance, and move, all in one place.

10 bought this week
30-Day Money Back Guarantee
GMP Certified Facilities
Third-Party Tested
Vegan & Non-GMO
Rated Excellent
by 30,000+ Positive ReviewsTrustindex verified
Rated 4.8/5 by 27,000+ Customers
UKAS Accredited Labs
Free Next-Day Delivery Over £50
Science-Backed Formulations

Frequently Asked Questions

Everything you need to know about this product.

Vitamin D helps absorb calcium while vitamin K directs calcium to the bones to strengthen it, without having it circulating and accumulating in the arteries. 

The recommended daily intake is one capsule per day with food. 

No, vitamin K may interact with blood thinning medications such as warfarin. It is best to consult your healthcare expert for advice on the matter. 

Third Party Tested
Trusted by 200,000+ Customers
Pharmaceutical-Grade Quality
UK-Based Customer Support