Life Extension Vitamins D and K with Sea-Iodine, vitamin D3, vitamin K1 and K2, iodine, supports immune, bone, arterial and thyroid health, non-GMO, gluten-free, 60 capsules

An avalanche of favorable studies has resulted in record numbers of Americans supplementing with vitamin D. Since it is virtually impossible to obtain adequate vitamin D from food sources, supplementation with 5,000-8,000 IU daily is required by many aging individuals. Overlooked by almost everyone (except Life Extension members) is the critical importance of vitamin K. If one is concerned enough about their health to take higher dose vitamin D, it seems absurd to miss out on the benefits of vitamin K. For instance, vitamin D facilitates calcium absorption into the bloodstream and thus plays an important role in maintaining bone density. Less recognized is the need for vitamin K to transport calcium from the bloodstream into the bone. Vitamin K is also required by calcium-regulating proteins in the arteries. Together these two vitamins help maintain youthful calcium skeletal distribution while promoting vascular health.

Supports a healthy immune response—Are you getting enough vitamin D3? We’ve combined several nutrients diets often lack, like vitamin D, which helps maintain a balanced immune system along with other benefits, from bone health to cognitive function
Helps maintain strong bones—Vitamin D is necessary for bone health because, along with vitamin K, it gets calcium into your bones. Not only that, but we include multiple types of vitamin K in this formula: vitamin K1 as well as two types of vitamin K2.
Supports thyroid health—There’s one more nutrient some people may lack: iodine. Common in table salt (and missing from many healthy diets), iodine is used to make thyroid hormones. Your thyroid helps regulate your body’s metabolism.
Ingredients matter – We use only the finest raw ingredients with the purity and potency you deserve. The majority of our products are non-GMO, gluten-free and manufactured in the USA—and a Certificate of Analysis is available for every one
Live your healthiest life – We believe the answers to a healthier life are within reach, and that scientific research is the key to getting us there. That’s why so many of our formulas feature specific ingredients and amounts based on scientific studies.