Life ExtensionVitamins D and K with Sea-Iodine, 90 Caps (Pack of 2)

For years I have had extremely low vitamin D levels. My levels were so low I was given a bone density scan at 30 years old. I have tried different forms of vitamin D which helped a little but my levels continued to be severly low. My doctor intorduced me to this brand and now my levels are where they should be. I recommend this product to anyone who suffers from low D levels.

made in USA

I like the fact that I can get the D3 & K2 in the same dose. And the Life Extension quality is a plus!

Excelente suplemento vitamínico

Price keeps going up but they work pretty good

I rely on this company to get these important vitamins.

I use this product consistently. Seller was competitive and quick to ship. Received exactly as expected.

I have a subscription with ConsumerLabs.com which tests all supplements and gives them ratings. During the recent pandemic I wanted to be sure I was getting optimum levels of Vitamin D and checked out all the products tested independently by CL and Life Extension was far and away the best rated at the time. I chose the one with iodine because, well, why not? We don't us iodized salt any more and haven't for years.Concurrently my HRV as detected by my Oura ring was always super low, like in the 20s. It's always been a worry for me. After a few weeks of taking this supplement my HRV was in the 100s!! I believe it's the iodine. I ran out recently and guess what started tanking... my readiness score on my Oura ring including the HRV readings were trending back to the 20s. Another week of taking this supplement and my HRV is back into the 60s as an average. I'm telling everyone about it!!