Life Extension Vitamins D and K with Sea-Iodine, 90 Capsules Review
Our verdict
Life Extension's D and K formula combines vitamin D with vitamin K and added sea sourced iodine in one capsule, appealing to buyers who want these nutrients bundled together rather than bought separately.
Check price on AmazonBest for
Buyers who want vitamin D combined with vitamin K and iodine in a single capsule instead of managing multiple separate supplements.
Skip if
You already take a vitamin K supplement elsewhere and want to avoid overlap, or you prefer a single ingredient vitamin D3 only product.
- Form Capsule
- Count 90.0 Count
- Flavor Unflavored
- Type Vitamin-D
- Priced 77% above the category median ($14.49 across 136 tracked models)
Pros
- Combines vitamin D, vitamin K, and sea sourced iodine in one capsule
- Unflavored, straightforward capsule format
- Strong 4.7 star average from an established supplement brand
- Consistent recent purchase activity around 1,000 units a month
Cons
- Higher price per capsule than single ingredient vitamin D3 products
- Not a fit if you want to control vitamin K or iodine intake separately
- Listing does not publish the specific vitamin D dose per capsule
Our scorecard
-
Owner rating4.7/5
4.7 average across 767 owner ratings
-
Popularity0.6/5
767 owner reviews, fewer than most models here
The overall score is owner satisfaction weighted by how many reviews back it, so a high rating from few reviews counts for less. The bars below show where this model stands against the other home health monitors: bathroom scales, blood pressure monitors, pregnancy and ovulation tests, thermometers, body composition monitors, stethoscopes, glucose monitors and pulse oximeters we track in this category on price, popularity and size. Context, not marks against it, and our read of the data, not a lab test.
Overview
This Life Extension capsule combines vitamin D with vitamin K and sea sourced iodine, a combination formula rather than a standalone D3 product. It ships in a 90 count, unflavored capsule bottle, positioning it for buyers who prefer consolidating several nutrients into one daily capsule.
At roughly 25.67 dollars for 90 capsules, it costs more per unit than many single ingredient vitamin D3 softgels or tablets, which reflects the added vitamin K and iodine content rather than the vitamin D dose alone.
The product holds a 4.7 star average from about 767 reviews, with roughly 1,000 units bought in the past month, indicating a smaller but engaged base of repeat buyers for this specific combination formula.
Specifications
| Form | Capsule |
|---|---|
| Count | 90.0 Count |
| Flavor | Unflavored |
| Type | Vitamin-D |
Performance notes
Packaged as an unflavored capsule, 90 to a bottle, this formula pairs vitamin D with vitamin K and sea sourced iodine rather than shipping as a standalone vitamin D3 product. That combination approach suits buyers looking to simplify a multi supplement routine into fewer capsules.
What buyers say
With a 4.7 star average across about 767 reviews and roughly 1,000 units bought in the last month, buyer response is solid, though the review base is smaller than some single ingredient vitamin D competitors in this category.
Similar home health monitors: bathroom scales, blood pressure monitors, pregnancy and ovulation tests, thermometers, body composition monitors, stethoscopes, glucose monitors and pulse oximeters to consider
Frequently asked questions
Why does this vitamin D product also contain vitamin K and iodine?
It is formulated as a combination supplement rather than a standalone vitamin D3 product, bundling these nutrients into one capsule for buyers who prefer fewer pills. Check the full label if you are already taking vitamin K or iodine from another source.
Should I check with a doctor before combining these nutrients?
It is a good idea to talk with a healthcare professional before starting any new supplement, especially a combination formula, to make sure it fits your existing diet and any other supplements you take. This page is informational only, not medical advice.
How does the price compare to a plain vitamin D3 capsule?
At about 25.67 dollars for 90 capsules, it costs more per unit than many single ingredient vitamin D3 softgels, which reflects the added vitamin K and iodine rather than the vitamin D content alone.