Vitamin D3 125 mcg (5000 IU) with Sea-Iodine

Name: Vitamin D3 125 mcg (5000 IU) with Sea-Iodine
Brand: Life Extension
SKU: 1lAYAUQD
Rating: 4.88 (3854 reviews)

Life Extension

4.9

★ ★ ★ ★ ★

(3854 ratings)

Iodine 1000 mcg

Score

A high-quality Vitamin D3 and sea iodine blend for better energy and metabolic health.

How scoring works

Quantity:60 Capsule(s) • (60 servings)

Goals:

Energy

Metabolism Boost

Score 97

A high-quality Vitamin D3 and sea iodine blend for better energy and metabolic health.

How scoring works

$10.50($0.17 per serving)

Vitacost	$ 10.53
Amazon	$ 10.50
Vitacost	$ 10.50
Pure Formulas	$ 10.50
iHerb	$ 10.50

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Analysis

This supplement is a smart mix of two nutrients that many people are low in. The sea iodine helps support your thyroid and metabolic rate, while Vitamin D3 is essential for overall cellular energy and physical stamina. Taking them together is a very efficient way to support your body's daily vitality.

It comes in easy capsules and offers a two-month supply at a very good price. This fits well into a routine for someone who wants to target multiple areas of their health in one go. It is a clean and potent formula that avoids unnecessary fillers.

Pros

Combines D3 and Iodine
High-potency sea-iodine complex
Supports metabolic and immune health
Very affordable for two nutrients
Easy daily capsule

Cons

D3 dose (5000 IU) is high
Iodine dose is also high
Not for people with enough D3 already

Warnings

Get your D3 levels checked regularly
Talk to a pro before high-dose iodine
Keep in a cool, dark place

Nutrient quality

Highest impact

Cholecalciferol and sea-iodine provide highly bioavailable forms for thyroid and systemic support. The combination addresses multiple pathways for energy regulation while staying within establishes safety limits.

Ingredient transparency

100

Highest impact

The label clearly lists the amounts for both Vitamin D and iodine, along with their specific nutrient forms. This transparency allows for a full evaluation of the nutritional profile and sourcing standards.

Customer satisfaction

Highest impact

Consistently strong ratings across thousands of reviews reflect high consumer confidence in this nutrient combination. Users frequently report improvements in their metabolic speed and overall resilience to fatigue.

Value for money

Highest impact

The cost per serving is reasonable given the combination of two high-potency nutrients. For individuals seeking foundational support for energy and metabolism, it provides excellent overall value.

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Goals

Selected only

Energy

Impact

Highest effect

B+

Goal Fit

A-

Strength of Support

C-

Coverage

Formula Quality

The blend contains Vitamin D3 and Iodine from a Sea-Iodine complex. This combination targets foundational cellular energy and thyroid-driven metabolism.

Thyroid hormones depend on iodine to regulate energy levels across all tissues. Vitamin D3 appears well aligned with mitochondrial oxidative capacity, which supports overall physical stamina and resilience to fatigue.

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Metabolism Boost

Impact

High effect

B+

Goal Fit

A-

Strength of Support

Coverage

B+

Formula Quality

A 1,000 mcg dose of iodine from a sea-complex supports healthy thyroid gland function and metabolic hormone production. This baseline support is necessary for the maintenance of a robust resting metabolic rate.

While focused on the thyroid-metabolic link, the formula does not cover thermogenic or glycemic pathways. It provides a simple and potent nutrient combination for those focused on foundational metabolic support.

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Ingredients

Display goals

Ingredient	Amount per serving
Vitamin D (Cholecalciferol)	125 mcg
Iodine	1000 mcg

Report overview

Iodine · 1000 mcg OverallScore

A-

Active Ingredient Quality & Bioavailability

A-

Dose, Safety & Label Transparency

A+

Value

This vitamin D3 and iodine combination provides 1,000 mcg of iodine from a sea-iodine complex to support thyroid health. It is a highly cost-effective formula that offers broad nutritional benefits at an optimal dose.

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