D3 and K2 w/ sea-iodine
$18.99
- 125 mcg vitamin D3 per capsule
- 2,100 mcg vitamin K from 3 forms
- 1,000 mcg iodine from Sea-Iodine
- 1 capsule a day
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Life Extension Vitamins D and K with Sea-Iodine
Vitamin D3, three forms of vitamin K and iodine in one daily capsule for bone, immune and thyroid support
Vitamins D and K with Sea-Iodine is Life Extension's once-daily capsule for bone, immune, cardiovascular and thyroid support. One capsule gives you 125 mcg (5,000 IU) of vitamin D3, 2,100 mcg of vitamin K and 1,000 mcg of iodine.
The vitamin K comes in three forms: 1,000 mcg of K1, 1,000 mcg of K2 as MK-4 and 100 mcg of K2 as MK-7. Vitamin D helps your body absorb calcium, vitamin K is needed for healthy bones, and your thyroid uses iodine to make its hormones. The iodine comes from Life Extension's Sea-Iodine blend of organic kelp, bladderwrack and potassium iodide. Each bottle holds 60 capsules, a 60-day supply.
- 125mcgvitamin D3 per capsule
- 2,100mcgvitamin K from 3 forms
- 1,000mcgiodine from Sea-Iodine
- 1capsule a day
Supplement facts per capsule
| Vitamin D3 (as cholecalciferol) | 125 mcg |
|---|---|
| Vitamin K, total | 2,100 mcg |
| Vitamin K1 (as phytonadione) | 1,000 mcg |
| Vitamin K2 (as menaquinone-4) | 1,000 mcg |
| Vitamin K2 (as trans menaquinone-7) | 100 mcg |
| Iodine (Sea-Iodine blend: organic kelp and bladderwrack extracts, potassium iodide) | 1,000 mcg |
Other ingredients: Microcrystalline cellulose, vegetable cellulose (capsule), maltodextrin, food starch-modified, dicalcium phosphate, stearic acid, silica
The three vitamin K lines make up the 2,100 mcg total. Gluten free and non-GMO, per Life Extension.
How to use it
- Take 1 capsule once a day with food.
- Life Extension suggests a 25-hydroxy vitamin D blood test after about 3 months to see where your levels are.
If you get more than 50 mcg (2,000 IU) of vitamin D a day from food and supplements, Life Extension says to have your vitamin D level checked from time to time, and not to go over 250 mcg a day unless your doctor recommends it. One capsule is above NIH's 100 mcg (4,000 IU) daily upper limit for adults, so check with your doctor if you take other vitamin D. Don't use it if you have high blood calcium levels. If you have a thyroid condition, take antithyroid medicine or take a blood thinner such as warfarin, talk to your healthcare practitioner first. Talk to your physician if you're pregnant or nursing or have a medical condition. Keep out of reach of children.
A good fit if you
- Want vitamin D3 and vitamin K in one daily capsule
- Want K1 plus both the MK-4 and MK-7 forms of K2
- Don't eat much seafood or iodized salt
- Like a one-a-day routine
Pairs well with
Common questions
How much vitamin D is in it?
125 mcg (5,000 IU) of vitamin D3 per capsule.
What forms of vitamin K does it use?
Three: K1 as phytonadione (1,000 mcg), K2 as MK-4 (1,000 mcg) and K2 as MK-7 (100 mcg), 2,100 mcg in all.
How is it different from Life Extension's Vitamin D3 with Sea-Iodine?
That one has the same 125 mcg of D3 and 1,000 mcg of iodine but no vitamin K. This one adds 2,100 mcg of vitamin K.
Can I take it with a blood thinner?
Vitamin K can interact with warfarin and similar blood thinners, so talk to your healthcare practitioner before you take it.
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