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Life Extension Vitamins D and K with Sea-Iodine
SPECIMEN #LIFE-EXT
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VitaminsLife Extension

Vitamins D and K with Sea-Iodine

Bone health, cardiovascular support, and thyroid function.. The product provides premium forms and clinical doses of D3 and K vitamins, which work synergistically for bone and heart health. However, the 1000mcg iodine dose is significantly above the RDA and near the upper limit, making it potentially too high for general use or for individuals sensitive to iodine.

8.8/10
EXCELLENT

Vitamin D3 at 5000 IU (125mcg) is above optimal. K2 is provided as both MK-4 (1000mcg) and MK-7 (100mcg at optimal), covering both fast-acting and long-acting forms. K1 at 1000mcg is generous. The D3+K2 synergy is perfectly executed. However, iodine at 1000mcg is near the upper limit (1100mcg) and may be too high for those with thyroid conditions.

5 ingredientsCapsules60 servings
Evidence
7.0
Dosing
10.0
Synergy
6.0
Official SiteAnalyze My Stack

What We Like

  • Clinical dose of Vitamin D3.
  • Excellent forms and clinical dose of Vitamin K2 (MK-7).
  • Strong synergy between D3 and K vitamins.

Watch Out For

  • Very high iodine dose, potentially excessive for many users.

What We Analyzed

Vitamins D and K with Sea-Iodine Supplement Facts

Verified Supplement Facts

Every dose checked against clinical research

We analyzed the actual supplement facts panel for this product. Every ingredient dose below was cross-referenced with published clinical trials to determine if it matches what studies actually use.

12 ingredients analyzed1 at clinical doses1 underdosed

Source: Official product page

Ingredient Breakdown

1 clinical1 underdosed
Clinical Adequate Underdosed Overdosed|Bar = % of clinical dose
IngredientDoseStatusvs. Clinical
Vitamin D310.0
125 mcgCLINICAL
125%
125 mcg

of 4000IU

CLINICAL
125%
Vitamin K19.0

phytonadione

1000 mcgOVERDOSED
833%
1000 mcg

of 120mcg

OVERDOSED
833%
Vitamin K210.0

menaquinone-4

1000 mcgOVERDOSED
500%
1000 mcg

of 200mcg

OVERDOSED
500%
Vitamin K210.0

trans menaquinone-7

100 mcgUNDERDOSED
50%
100 mcg

of 200mcg

UNDERDOSED
50%
Iodine9.0®

Sea-Iodine™ Complex

1000 mcgOVERDOSED
400%
1000 mcg

of 250mcg

OVERDOSED
400%
In our database (click to learn more) Not yet reviewed
Other Ingredients(inactive)

microcrystalline cellulose, vegetable cellulose (capsule), maltodextrin, food starch-modified, dicalcium phosphate, stearic acid, silica

Our Analysis

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