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Life Extension Vitamins D and K with Sea-Iodine

Life Extension Vitamins D and K with Sea-Iodine

Regular price $40.33 AUD
Sale price $40.33 AUD Regular price
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Life Extension Vitamins D and K with Sea-Iodine

Regular price $40.33
Sale price $40.33 Regular price
Save % Sold out
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The Importance of Iodine

Discover Life Extension Vitamins — Iodine is a trace mineral essential for thyroid hormone production. These hormones regulate metabolism and are vital for energy production, growth, and development. Many modern diets lack adequate iodine, especially those that avoid iodised salt. Adding iodine from a natural sea source helps ensure you meet your daily needs, supporting thyroid health and overall metabolic function. This formulation includes sea-iodine to fill that gap.

Why Take Vitamin D3 and K2 Together?

Vitamin D3 and vitamin K2 are a powerful combination for maintaining overall health. Vitamin D3 enhances calcium absorption from the diet, while vitamin K2 ensures that calcium is directed to the bones and teeth rather than accumulating in soft tissues like arteries. This synergistic relationship supports bone density, arterial flexibility, and immune function. Life Extension Vitamins D and K with Sea-Iodine also includes vitamin K1 and iodine, providing additional support for blood clotting, bone metabolism, and thyroid health. Many individuals find that a combined D3 and K2 supplement helps address common deficiencies, especially those whose diets lack these essential nutrients.

Understanding the Synergy: How D3 and K2 Work Together

Vitamin D3 (cholecalciferol) supports the production of calcium-binding proteins that enhance intestinal calcium absorption. Meanwhile, vitamin K2 (menaquinone) activates proteins such as osteocalcin and matrix GLA protein (MGP). Osteocalcin helps bind calcium to the bone matrix, while MGP helps prevent calcium from depositing in arterial walls. This dual action supports strong bones and a healthy cardiovascular system. This formula includes two forms of K2: MK-4, which provides rapid activity, and MK-7, which offers a longer half-life for sustained support. Vitamin K1 (phylloquinone) also contributes to normal blood clotting and bone metabolism, rounding out the K-vitamin profile.

Key Health Benefits

  • Immune Support: Vitamin D3 is well-known for helping maintain a balanced immune response. Adequate levels support your body's natural defence against seasonal challenges.
  • Bone Health: By promoting calcium absorption and directing it to bones, vitamins D and K help maintain bone density and strength as you age. This is crucial for preventing age-related bone loss.
  • Arterial Health: Vitamin K2 supports arterial flexibility by maintaining normal calcium balance in the vascular system, promoting cardiovascular wellbeing.
  • Thyroid Function: Iodine from sea-iodine is essential for the production of thyroid hormones, which regulate metabolism. Many modern diets lack sufficient iodine, making this a valuable addition.
  • Cognitive Function: Vitamin D also supports cognitive function as part of overall wellbeing, helping maintain mental clarity and brain health.
  • Quality Ingredients: Life Extension uses Non-GM, gluten free ingredients and provides a Certificate of Analysis for each batch, ensuring purity and potency. The product is manufactured in the USA with globally sourced ingredients.

What to Look For in a D3 + K2 Supplement

When selecting a vitamin D3 and K2 supplement, consider the form of K2, the presence of additional nutrients, and the brand's commitment to quality. This formula delivers a balanced combination of vitamin D3, K1, K2 (as MK-4 and MK-7), and iodine from a sea source. The inclusion of both MK-4 and MK-7 ensures both immediate and sustained activity. The formula is designed to support bone, immune, and thyroid health without exceeding safe levels. Life Extension prioritises research-backed formulations, using specific ingredients and amounts based on scientific studies. Each batch undergoes testing, and a Certificate of Analysis is available, demonstrating their commitment to quality.

Important Considerations

If you are taking any medications, especially blood thinners such as warfarin, consult your healthcare provider before adding vitamin K supplements, as it may interact with anticoagulant therapy. Take this supplement with a meal containing fat to enhance absorption of the fat-soluble vitamins D and K. The suggested serving is one capsule daily with food, or as recommended by a healthcare professional. These amounts are designed to support general wellbeing. Always read the label and follow directions for use. Consult your physician before starting any new supplement, particularly if you are pregnant, nursing, or have a medical condition.

This product is not intended to diagnose, treat, , or prevent any disease.

Worldwide Delivery

Vitamins4Australia offers free shipping to Australia & the US on every order, with no minimum spend required. Most orders are delivered within 2–7 business days after dispatch, and tracking details are sent by email once the order leaves fulfilment.

Returns and support

Vitamins4Australia offers straightforward post-purchase support with a clear returns process. Please check the store returns policy before sending an item back, as final eligibility may depend on product condition, packaging integrity and whether the return request is started within the stated return window.

How to choose

Use the product description, ingredient list, serving information and available variants to compare supplement options. Always check the full ingredient list, directions for use and any allergen information on the product packaging before taking any food supplement.

Ingredients and important information

Ingredient lists and formulations may vary by batch or supplier. Always check the product packaging for the most up-to-date information. Food supplements should not be used as a substitute for a varied and balanced diet and a healthy lifestyle. Do not exceed the recommended daily intake. If you are pregnant, nursing, taking medication or have a medical condition, consult your healthcare professional before use.

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  • Free standard deliveryUsually 2–7 business days to Australia, after 1–3 days to prepare
  • 30-day returnsOn unopened items in original packaging
  • Secure checkoutProcessed by Shopify with major cards accepted
  • Real supportEmail or phone, answered by our team

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Buying guide and questions

Supplement guide

Life Extension Vitamins D and K with Sea-Iodine at Vitamins4Australia

The Importance of IodineDiscover Life Extension Vitamins — Iodine is a trace mineral essential for thyroid hormone production. These hormones regulate metabolism and are vital for energy production, growth, and develo...

Category Vitamin D3 & K2 Combinations
Delivery area Worldwide
Checkout Secure checkout
Brand Life Extension
Price $40.33
Availability In stock
arterial healthbone healthd3 k2 combinationgluten-freeimmune supportiodinelife extensionmk-7non-gmosea-iodine

How to choose if this supplement fits your routine

Read the ingredient list, check the serving size and directions for use. Consider the supplement form (tablet, capsule, liquid) and whether it suits your dietary requirements. Food supplements should not be used as a substitute for a varied and balanced diet and a healthy lifestyle.

Questions about Life Extension Vitamins D and K with Sea-Iodine

Is Life Extension Vitamins D and K with Sea-Iodine available worldwide?

Yes. This product is currently available on Vitamins4Australia with free shipping to Australia & the US.

How should I compare this with similar supplements?

Compare the active ingredients, serving size, number of servings per container, supplement form, brand reputation and price per serving. Check allergen information if relevant to your dietary needs.

Where can I find delivery and returns information?

Delivery information is shown near the add to cart area. Returns guidance is available on the product page and full terms are covered in the store returns policy.