Life Extension Vitamin D3 & K (with Sea-Iodine) — 60 Capsules, Bone & Thyroid Support

Life Extension Vitamins D and K with Sea-Iodine is a once-daily capsule that delivers vitamin D3, multiple forms of vitamin K, and iodine to support bone mineral balance, thyroid nutrient supply, and overall nutritional completeness.

This triple-nutrient supplement combines vitamin D3, vitamin K (K1 plus two K2 forms), and sea-derived iodine into a single daily capsule. It’s formulated to address nutrients that are commonly low in modern diets and offers a convenient option for people who prefer to get these key micronutrients together instead of taking separate pills. Life Extension produces this formula in the USA using internationally sourced ingredients and provides Certificates of Analysis for quality transparency.

How does this formula help maintain healthy bones?

Vitamin D3 enhances calcium absorption from the diet, and vitamin K helps direct that calcium to bone tissue rather than soft tissues. By supplying both nutrients, the product supports the body’s processes that contribute to bone mineral balance without making therapeutic claims.

• Provides vitamin D3 to aid intestinal calcium uptake.
• Includes vitamin K1 plus two K2 forms to support calcium distribution.
• Once-daily capsule simplifies bone-focused supplementation routines.

Why include iodine from sea-iodine in the blend?

Iodine is an essential dietary trace element used by the body to produce thyroid hormones; some diets are low in iodine when iodized salt or iodine-rich foods are limited. Adding sea-sourced iodine helps round out the formula for users seeking to include an iodine source alongside D and K.

• Sea-iodine supplies a dietary source of iodine in each capsule.
• Combining iodine with D and K provides a more complete micronutrient profile.
• Suitable for people who want iodine without adding separate supplements.

Who should take a combined D, K, and iodine supplement?

This product is aimed at adults looking to consolidate nutrients that are often underconsumed into a single daily capsule. It can suit people who want a straightforward supplement to complement their diet, especially if they live in regions with limited sun exposure, follow dietary patterns low in iodine, or prefer to support calcium metabolism with both D and K.

• Adults seeking vitamin D3 plus vitamin K in one capsule.
• Those who want an added dietary source of iodine from sea origin.
• Consumers who value non-GMO, gluten-free manufacturing standards.

How does Life Extension ensure quality and transparency?

Life Extension formulates supplements using scientific input and provides Certificates of Analysis for its products, so customers can review third-party testing information. The majority of their items are produced in the USA with internationally sourced ingredients and meet common labeling standards for non-GMO and gluten-free products where indicated.

• Manufactured in the USA using internationally sourced raw materials.
• Certificate of Analysis available for product verification.
• Majority of Life Extension products adhere to non-GMO and gluten-free practices.

Who this is for: Adults who want a compact, once-daily supplement that combines vitamin D3, multiple forms of vitamin K, and sea-derived iodine. It’s suited to people aiming to support nutritional sufficiency for bone health and thyroid nutrient supply as part of a balanced diet and healthy lifestyle. As with any supplement, consult a healthcare professional if you have specific health conditions, take medications, or are pregnant or nursing before starting a new dietary product.

Ingredients

Vitamin D3 (as cholecalciferol) 125 mcg Vitamin K activity from: 2100 mcg Vitamin K1 (as phytonadione) 1000 mcg Vitamin K2 (as menaquinone-4) 1000 mcg Vitamin K2 (as trans menaquinone-7) 100 mcg Iodine [from Sea-Iodine™ Complex Blend (organic kelp and bladderwrack extracts, potassium iodide)] 1000 mcg Other ingredients: microcrystalline cellulose, vegetable cellulose (capsule), maltodextrin, food starch-modified, dicalcium phosphate, stearic acid, silica. Non-GMO