- Life Extension Vitamins D and K with Sea-Iodine, 90 Capsules
- This formula delivers 125 mcg (5,000 IU) of vitamin D3, 1,000 mcg of Vitamin K1 (as phytonadione), 1,000 mcg of Vitamin K2 (as menaquinone-4), 100 mcg of Vitamin K2 (as trans menaquinone-7), and 1000 mcg of iodine in a convenient, once-daily supplement
- Gluten free and non-GMO
- Ingredients matter – We use only the finest raw ingredients with the purity and potency you deserve. The majority of our products are non-GMO, gluten-free and manufactured in the USA—and a Certificate of Analysis is available for every one
- Live your healthiest life - We believe the answers to a healthier life are within reach, and that scientific research is the key to getting us there.


Leanna Hardy –
Perfect combo
Nice small capsule to swallow. Excellent product all around!
Horse’s Friend –
Vit d, k supplement
As expected
Amazon Customer –
Very helpful!
Great product! The iodine helped reduce breast tenderness and pain from fibrocystic breast disease.
Erica Melegari –
Good stuff!
My favorite d3/k supplement. I feel so much better when I take it and can tell when I’m out.
María Amor –
Immune Power
These were recommended. I believe they work bc I do not have joint pain and haven’t gotten a cold over a year ago. It’s an immunity plus!
A Jeck –
Great!
Only vitamin d I will take. Great value for the product
Marcus Elliot –
SUPPLEMENT
I use as a supplement
Rob –
A staple in my vitamin regiment
This brand was recommended by my integrated health practitioner and they are very helpful.