

Out of Stock
60 capsules
Item Catalog Number: 01572
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 5,000-10,000 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 suppoting normal 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 support normal youthful calcium skeletal distribution.
Vitamin K can be found in small amounts in the diet, but obtaining the desired higher potencies requires supplementation. Many Life Extension members obtain optimal potencies of long-acting vitamin K in the Super Booster or Super K formulations. An increasing number of new members, however, are asking for high-potency vitamin D”but are not taking any supplemental vitamin K.
Serving Size 1 capsule | |
Servings Per Container 60 | |
Amount Per Serving | |
Vitamin D3 (as cholecalciferol) | 5000 IU |
Vitamin K activity from: | 1100 mcg |
Vitamin K2 (as menaquinone-4) | 1000 mcg |
Vitamin K (as menaquinone-7) | 100 mcg |
Natural Iodin from | 1000 mcg |
Sea-Iodin Complex Blend | |
Nova Scotian Kelp (Ascophyllum nodosum), Icelandic Kelp (Laminaria digitata), Nova Scotian Dulse (Palmaria palmata) | |
Other ingredients: microcrystalline cellulose, vegetable cellulose (capsule), maltodextrin, modified food starch, dicalcium phosphate, vegetable stearate, silica. | |
Due to the source of the kelp, this product may contain fish and crustacean shellfish. |
Individuals consuming more than 2,000 IU/day of vitamin D (from diet and supplements) should periodically obtain a serum 25-hydroxy vitamin D measurement. Do not exceed 10,000 IU per day unless recommended by your doctor.