Vitamins D and K with Sea-Iodine, Vitamin D3, Vitamin K1 and K2, Iodine, Supports Immune, Bone, arterial and Thyroid Health, Non-GMO, Gluten-Free, 60 Capsules

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.

I’m been taking this combine with zinc and magnesium I’m in perimenopause and I feel it has helped me to better recover in my sleep ..

My doctor ran some standard blood tests back in January 2026 and told me my vitamin D levels were low. The blood tests confirmed what I had suspected because I felt like I had no energy, my sleep schedule was awful, my mood was off and I was suffering from migraines on a monthly basis(due to hormonal changes). I’ve done my research and homework on vitamins and supplements and I know for Vitamin D to be effective it should be paired with Vitamin K2 for maximum absorption. I found the Life Extension brand because it checked both boxes(vit D3 and K2). The addition of iodine was also a big plus for me because I had been considering adding an iodine supplement to my daily vitamin regimen. I love that the iodine is sourced from seaweed and not made in some lab. The capsules are small and easy to swallow. Every other vitamin D3 supplement I’ve taken in the past seems like it’s either a huge tablet or you have to take 3 capsules 3x/day. This brand is one small capsule, once a day. IMO the value for your money is excellent and worth every penny. I will continue to purchase the Life Extension brand vit D3 with K2 & iodine and have since recommended it to family and friends. All of this being said, my doctor retested my vitamin D levels a few weeks ago and I am happy to share that my levels went from 23 to 35!! My bloodwork is a confirmation that the Life Extension vitamin D3 has helped me improve vitamin D levels! 🙌🏼 💪🏼

Life Extension makes the best quality vitamins on the market imo, and this Vit D also has plenty of vit K as well as iodine, which is cool. The price is great too- I'm very satisfied.

we've tried many different D3 supplements but always come back to this one. it's not perfect, for one thing you must be sure you have a good source of selenium in your diet because this does contain iodine. we were noticing thyroid symptoms after a few years on this, but taking it with 1-3 brazil nuts at breakfast is making a big difference in that regard. not sure we'll stick with this supplement longer term, but for now it seems to be better than most especially at this price point.

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.

Good product but found them to be too strong for me dose wise

Bought theses for my hubby. He doesn’t get enough sun and you need K to activate the D it’s only missing magnesium BUT. It does contain iodine which is essential and most people don’t get enough of it

Nice product - I have had good results with it since I work night shifts continuously for six months. I was losing my hair due to insufficient vitamin D. I used this product, and it has not completely stopped my hair loss.

健康のために。 D3とK2が一緒だとよいときいてさがしていたので、ちょうどよいものを発見 粒が、小さめなので飲みやすいです

Great product

Nice to find vit D combined with K . Very easy to swallow.

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