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Life Extension - Vitamins D and K with Sea-Iodine

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Life Extension

Vitamins D and K with Sea-Iodine

B grade
81/100
SUPPIE SCORE
88/100
EFFICACY
Low
SAFETY
70/100
CLEANLINESS

What Does Vitamins D and K with Sea-Iodine Do?

This well-formulated supplement offers excellent bone and thyroid support with research-backed dosages of vitamins D, K, and iodine. High vitamin K levels optimize benefits but require caution with blood thinners; overall safe for most adults.
What are the bone health benefits of combining vitamins D and K?
How does the Sea-Iodine complex support thyroid function?
Is this supplement suitable for people with iodine sensitivity?
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What Are the Benefits of Vitamins D and K with Sea-Iodine?

Based on proven scientific research

Bone health supportVery strong
Cardiovascular healthStrong
Thyroid functionStrong
Immune system supportModerate

Good For:

What Are the Side Effects of Life Extension Vitamins D and K with Sea-Iodine?

Always consult your health practitioner if in doubt.

RiskLow Risk

Overview

Vitamin D3 at 125 mcg (5000 IU) is within safe upper limits (4000-10000 IU) for adults but monitor levels to avoid hypercalcemia.
High vitamin K doses (2110 mcg total) may interact with warfarin; consult doctor if on blood thinners.
Iodine at 1000 mcg from kelp/bladderwrack and potassium iodide is below UL (1100 mcg) but risks thyroid disruption in sensitive individuals or those with autoimmune thyroid disease.
Safe for healthy adults; low risk of side effects at recommended dosage, but not advised for pregnancy without medical supervision due to iodine excess potential.
Sea plant extracts may contain trace heavy metals; third-party testing recommended, though Life Extension maintains quality standards.
Allergen risks from seaweed sources; avoid if allergic to iodine or shellfish, despite no direct shellfish content.

Potential Side Effects

Negative Interactions

Inactive Ingredients

Microcrystalline cellulose
Low Risk
Vegetable cellulose (capsule)
Low Risk
Maltodextrin
Low Risk
Stearic acid
Low Risk
Silica
Low Risk
Calcium phosphate
Low Risk

What Are the Ingredients in Life Extension Vitamins D and K with Sea-Iodine?

Vitamin D3 (as cholecalciferol)
125 mcg
Vitamin K (as phytonadione)
1000 mcg
Vitamin K2 (as menaquinone-4)
1000 mcg
Vitamin K2 (as trans trans menaquinone-7)
110 mcg
Iodine (from Sea-Iodine Complex Blend (organic kelp and bladderwrack extracts, potassium iodide))
1000 mcg
microcrystalline cellulose
vegetable cellulose (capsule)
maltodextrin
stearic acid
silica
calcium phosphate

Frequently Asked Questions

Common questions about Life Extension Vitamins D and K with Sea-Iodine