Life Extension Vitamins D and K with Sea-Iodine, 90 Capsules — 5,000 IU D3 & Multi‑Form K

Life Extension Vitamins D and K with Sea-Iodine is a once-daily capsule delivering 5,000 IU vitamin D3 plus multiple forms of vitamin K and 1,000 mcg iodine for convenient daily support.

This comprehensive supplement combines high-strength vitamin D3 with three forms of vitamin K (K1, K2 as MK-4 and MK-7) and sea-derived iodine to support everyday nutritional needs. Packaged as 90 easy-to-swallow capsules, the formula is gluten-free, non-GMO, and designed for people seeking a single capsule that consolidates several nutrients they commonly take separately.

How much vitamin D and vitamin K are included per capsule?

Each capsule supplies 125 mcg (5,000 IU) of vitamin D3 and a blend of vitamin K compounds: 1,000 mcg K1, 1,000 mcg K2 as menaquinone-4, and 100 mcg K2 as trans menaquinone-7 (MK-7). This combination provides both immediate and longer-acting K2 forms plus K1 in one serving.

• Vitamin D3: 125 mcg (5,000 IU) per capsule
• Vitamin K1 (phytonadione): 1,000 mcg per capsule
• Vitamin K2 (menaquinone-4): 1,000 mcg per capsule
• Vitamin K2 (trans MK-7): 100 mcg per capsule

What is Sea-Iodine and how much iodine does this product provide?

Sea-Iodine in this product refers to iodine sourced from marine-derived ingredients; each capsule delivers 1,000 mcg (1 mg) of iodine. Iodine is an essential trace mineral commonly taken to support normal dietary intake when food sources may be inconsistent.

• Iodine amount: 1,000 mcg (1 mg) per capsule
• Derived from sea-based ingredient for concentrated iodine content
• Included to complement the D and K nutrient profile in one capsule

Who should take this supplement and how often?

The product is formulated for adults looking for a daily multinutrient capsule containing higher-dose vitamin D along with multiple vitamin K types and iodine. The recommended use is one capsule daily or as directed by a healthcare professional.

• Dosage: one capsule daily
• Target users: adults seeking consolidated D, K, and iodine support
• Suitable for those preferring gluten-free and non-GMO supplements

Are there notable quality or manufacturing assurances?

Life Extension emphasizes ingredient quality and transparency; many products are manufactured in the USA and come with a Certificate of Analysis upon request. The formula is labeled gluten-free and non-GMO to meet common dietary preferences and quality expectations.

• Gluten-free and non-GMO formulation
• Manufactured with attention to purity and potency
• Certificate of Analysis available for verification

Who is this for: This product suits adults who want a single, daily capsule delivering a high dose of vitamin D3 together with multiple vitamin K forms and a concentrated source of iodine. It’s a practical option for people consolidating supplements, those with limited sun exposure, or anyone preferring a formula produced under strict quality practices. Consult a healthcare professional before use if you are pregnant, nursing, taking blood-thinning medication, or have a medical condition that could be affected by vitamin D, vitamin K, or iodine.

Ingredients

Serving Size: 1 Capsule. Ingredients: Vitamin D3 (as cholecalciferol), Vitamin K1 (as phytonadione), Vitamin K2 (as menaquinone-4), Vitamin K2 (as trans menaquinone-7), Iodine [from Sea-Iodine™ Complex Blend (organic kelp and bladderwrack extracts, potassium iodide)]. Other ingredients: microcrystalline cellulose, vegetable cellulose (capsule), maltodextrin, food starch-modified, dicalcium phosphate, stearic acid, silica.