

🧠 Strengthen your bones, brain, and heart — the smart daily boost you can’t afford to miss!
Life Extension Vitamins D and K with SeaIodine delivers a scientifically-backed blend of 125 mcg Vitamin D3, 2100 mcg Vitamin K1 and K2, plus iodine sourced from sea vegetables. This non-GMO, gluten-free formula supports bone strength, cognitive function, immune health, arterial calcium balance, and thyroid hormone production — all in a convenient once-daily capsule trusted by thousands for over 40 years.









| ASIN | B076DBV1MG |
| Best Sellers Rank | #2,947 in Health & Household ( See Top 100 in Health & Household ) #38 in Vitamin D Supplements |
| Customer Reviews | 4.7 4.7 out of 5 stars (4,375) |
| Date First Available | October 4, 2017 |
| Is Discontinued By Manufacturer | No |
| Item model number | 02040 |
| Manufacturer | Life Extension |
| Product Dimensions | 2.09 x 2.09 x 3.73 inches; 1.6 ounces |
Z**K
Vitamin D & K with Sea-Iodine
I’ve been using Life Extension Vitamins D and K with Sea-Iodine for a couple of months, and I’m very pleased with the results. The combination of vitamin D3, multiple forms of vitamin K, and iodine makes this supplement stand out, as it supports not only immune and bone health but also thyroid function and overall wellness. I appreciate that the capsules are small and easy to swallow, with no noticeable taste, which makes them convenient for daily use. Since starting this supplement, I’ve noticed improvements in my energy levels and a general sense of well-being, which I attribute to the balanced blend of nutrients. My vitamin D levels, which were previously low, have returned to normal, and my nails and hair also seem healthier. The inclusion of sea-iodine is a thoughtful touch, especially for those who don’t get enough iodine from their diet. Overall, this is a high-quality, non-GMO, and gluten-free product that delivers on its promise to support immune, bone, arterial, and thyroid health.
K**D
Best Vitamin D with K for a Reasonable Price- Reordered 5 Times Already
Life Extension Certainly did Not let Us down with this Vitamin D with K Supplement. Excellent Quality with no bad smell or taste. BUT It is quite a Large Solid Oval Pill (in case Swallowing is an issue for the intended User.) It has become a staple in Our Family Supplement regimen!
M**Y
Everything is perfect as usual.
I did receive the package it was at my back door. Sorry for the confusion. Never left it there before.
E**.
Helps with bones and thyroid function. Not synthetic, gentle on stomach.
According to my labs now my vitamin D LEVEL is perfect. Since I have osteoporosis and live in the Northeast with lack of sunlight unless it’s summer, I ordered this to stay healthy in my senior years. I also have low thyroid and take synthroid. Those levels have been great too. I don’t drink milk and have GI absorption issues so needed one gentle on the gut. This item checked off all the boxes. Highly recommend.
J**G
No problem encountered
Aok purchase
K**N
Great Combination of D3 and K2 for Better Absorption
This D3 and K2 vitamin supplement is a great addition to my daily routine. I like that it combines both vitamins, as they work together to help with calcium absorption and support bone and heart health. The capsules are a good size and easy to swallow. I also appreciate that the ingredients are high quality, and there’s no unpleasant aftertaste.
G**R
Wonderful Vitamins
These was recommended for me to use, and I love them. Will continue to purchase it.
L**B
Quality product
I have these on autoship. My Vitamin D levels have been in the normal range ever since taking them.
S**E
👍🏽
A**F
Great product
T**A
thank you very much
L**.
Nice to find vit D combined with K . Very easy to swallow.
ن**د
ممتاز انصح به
Trustpilot
3 days ago
2 months ago