Vitamin D3 with Sea-Iodine Immune, bone & thyroid support
Vitamin D3 with Sea-Iodine Immune, bone & thyroid support

Life Extension

Vitamin D3 with Sea-Iodine 5000

$14.99

SIZE: 60 Capsules

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SKU: LX0051 Categories: , , Tags: , , Product Brand:

The Promise

What this product is High‑dose vitamin D3 plus marine iodine in a vegan capsule

Life Extension Vitamin D3 with Sea‑Iodine™ combines cholecalciferol (D3) with a marine‑derived iodine complex in a once‑daily vegetable capsule.

Identity & brand

Life Extension Vitamin D3 with Sea‑Iodine™ — dietary supplement, 5,000 IU vitamin D3 per capsule with added Sea‑Iodine™.

Principal ingredients & forms

Vitamin D (cholecalciferol) 125 mcg (5,000 IU) per capsule; iodine from Sea‑Iodine™ (organic kelp & bladderwrack extracts plus potassium iodide) totaling 1,000 mcg.

Formulation & delivery

Single‑ingredient capsule format using vegetable cellulose (capsule) and standard excipients (microcrystalline cellulose, maltodextrin, modified food starch, silica, stearic acid).

Dietary & quality facts

Non‑GMO and gluten‑free; vegetarian capsule; sealed package.

Why It Works

Why this formulation matters Concentrated, specified amounts and marine iodine source

Key measurable facts about dose, source, and physiological roles supported by the label.

01

Specified D3 dose

Each capsule delivers 125 mcg (5,000 IU) cholecalciferol — an explicit single‑capsule dosing level.

02

Marine iodine source & amount

Provides 1,000 mcg iodine from a Sea‑Iodine™ complex (organic kelp and bladderwrack extracts plus potassium iodide).

03

Physiological role (supported label language)

Label notes vitamin D facilitates calcium absorption and supports bone, immune, cardiovascular, and cognitive‑related functions.*

04

Capsule composition & suitability

Delivered in a vegetable cellulose capsule with listed excipients; product labeled Non‑GMO and gluten‑free.

Reviews

Customer Reviews

Your Journey

How to use & safety Simple daily dosing with monitoring and specific cautions

Practical directions, monitoring guidance, and labeled warnings from the product.

Serving

Take one capsule daily

Suggested use: Take one (1) capsule daily with food, or as recommended by a healthcare practitioner.

Monitoring

Check serum 25‑hydroxy vitamin D

Consider a 25‑hydroxy vitamin D blood test after 3 months to confirm levels (label target range noted: 50–80 ng/mL).

Dose limits & medical cautions

Observe intake limits and warnings

Do not exceed 10,000 IU vitamin D per day unless recommended by your doctor; individuals consuming >50 mcg (2,000 IU)/day should periodically measure serum 25‑hydroxy vitamin D. Not recommended for persons with high blood calcium. If you have a thyroid condition or take antithyroid medications, consult your healthcare practitioner before use.

Storage & safety

Keep sealed and out of reach of children

KEEP OUT OF REACH OF CHILDREN. Do not purchase if outer seal is broken or damaged. Consult a physician if pregnant or lactating or undergoing treatment for a medical condition.

Product education

Vitamin D3 with Sea-Iodine™

Immune, bone & thyroid support*

Maintaining healthy levels of vitamin D supports cognitive clarity, strong bones, and healthy blood vessel function. With added iodine from organic sea sources, this dual-action formula also helps maintain thyroid hormone balance and whole-body wellness.*

Gluten free Non-GMO

Overview

What Is Vitamin D3 with Sea-Iodine™?
Vitamin D3 with Sea-Iodine™ combines two essential nutrients for whole-body health. Iodine supports thyroid hormone production, while vitamin D promotes healthy immune, cognitive, cardiovascular, and bone function. This formula is especially ideal for individuals limiting table salt or not consuming enough iodine-rich seafood.*

Vitamin D3 with Sea-Iodine™ Benefits*

  • Supports immune system function and cognitive clarity*
  • Promotes healthy bones, teeth, and blood pressure levels*
  • Provides 1,000 mcg of iodine to support healthy thyroid hormone production*
  • Delivers 125 mcg (5,000 IU) of vitamin D3 per capsule

Get the Vitamin D3 & Iodine You Need

If you’re reducing salt intake or avoiding seafood, you may be missing out on iodine—vital for healthy thyroid hormones. This formula delivers iodine from organic kelp and bladderwrack extracts alongside a potent dose of vitamin D3 to support a wide range of biological functions and promote optimal well-being.*

Product Details

Iodine is essential for thyroid health
Iodine plays a key role in the production of thyroid hormones that regulate metabolism and energy. Sea-Iodine™ delivers 1,000 mcg of iodine from marine plant sources—perfect for those avoiding iodized salt or marine diets.

Vitamin D3 and cognitive health
Vitamin D has been linked to sharper cognitive function as we age. Maintaining optimal levels may support memory, clarity, and mood.*

Vitamin D3 and bone and immune health
Vitamin D facilitates calcium absorption, which is essential for strong bones and teeth. It also plays a critical role in regulating immune function and inflammation.*

Vitamin D3 and heart health
This nutrient promotes vascular health by supporting endothelial function and healthy inflammatory responses. It also helps regulate renin, a hormone involved in maintaining healthy blood pressure.*

Get tested to assess dosage
Each capsule delivers 125 mcg (5,000 IU) of vitamin D3. Consider a 25-hydroxy vitamin D blood test after 3 months to ensure your blood levels are within the optimal range of 50–80 ng/mL.

Supplement record

Review serving details and ingredients for this product.

Supplement Facts:
Suggested Use: Take one (1) capsule daily with food, or as recommended by a healthcare practitioner.
Serving Size: 1 capsule
Ingredient Amount %DV
Vitamin D (as cholecalciferol) 125 mcg –
Iodine [from Sea-Iodine™ Complex Blend (organic kelp and bladderwrack extracts, potassium iodide)] 1,000 mcg –
Other ingredients: microcrystalline cellulose, vegetable cellulose (capsule), maltodextrin, modified food starch, silica, stearic acid.
Non‑GMO
Caution: Individuals consuming more than 50 mcg (2000 IU)/day of vitamin D (from diet and supplements) should periodically obtain a serum 25-hydroxy vitamin D measurement. Do not exceed 10000 IU per day unless recommended by your doctor. Vitamin D supplementation is not recommended for individuals with high blood calcium levels. If you have a thyroid condition or are taking antithyroid medications, do not use without consulting your healthcare practitioner.
Warnings: KEEP OUT OF REACH OF CHILDREN. DO NOT EXCEED RECOMMENDED DOSE. Do not purchase if outer seal is broken or damaged. When using nutritional supplements, please consult with your physician if you are undergoing treatment for a medical condition or if you are pregnant or lactating.

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