Free Shipping is not available for Hawaii, Alaska, U.S. **Free Shipping applies to orders shipping within the contiguous U.S. *Excludes Metagenics, Pure Encapsulations, Douglas Laboratories, Nordic Naturals, NuMedica, Designs For Health, Integrative Therapeutics, Biotics Research and Priority One products, Styrofoam Cooler and orders shipping internationally. All rights reserved * Designated trademarks and brands are the property of their respective owners. Vitamin K supplementation is contraindicated for those taking Coumadin/warfarin anticoagulant medication.Ĭopyright © 1999-2017. Recent studies indicate that vitamin D also potentiates the activity of MGP and that the combination of vitamin K and D provides synergistic support for blood vessel function and bone health. By activating matrix Gla–protein (MGP), vitamin K also helps maintain healthy calcium metabolism in vascular tissues, supporting healthy vascular elasticity. Adequate intake of vitamin K 1 and K 2 may be especially important for optimal carboxylation in aging individuals, as indicated by a recent study involving Japanese women. This enables osteocalcin to bind to calcium and promote healthy bone mineralization.
Vitamin K enhances bone formation by carboxylating osteocalcin. Studies indicate that vitamin K 1 and MK–4 are primarily concentrated in the liver, while MK–7 concentrates in extra–hepatic tissues, including vascular tissues, and has a longer half–life. The most common menaquinones are menaquinone–4 (MK–4) and menaquinone–7 (MK–7). The vitamin K 2 family, menaquinones, are less common and are found in meats, eggs, some cheeses, and fermented food, such as Japanese natto. Vitamin K 1, phylloquinone, is the most common form and is found in plants and green vegetables. These differing side chains account for variations in absorption, bioavailability, transport and tissue distribution. Shipping charges are not refundable.*Vitamin K includes a group of compounds that contain a central ring structure with varying side chains. Please remember it can take some time for your bank or credit card company to process and post the refund too. If approved, you’ll be automatically refunded on your original payment method. We will notify you once we’ve received and inspected your return, and let you know if the refund was approved or not. The fastest way to ensure you get what you want is to return the item you have, and once the return is accepted, make a separate purchase for the new item. Unfortunately, we cannot accept returns on sale items or gift cards. Please get in touch if you have questions or concerns about your specific product. No refunds/credits will be given on soft gel products or products formulated with live organisms. Claims for defective or damage product must be made within 7 days of receipt of product(s).Ĭertain types of items cannot be returned. If you received a package that has been damaged, please save the original box and all of the contents. Please inspect your order upon reception and contact us immediately if the item is defective, damaged or if you receive the wrong item, so that we can evaluate the issue and make it right. You can always contact us for any return question and issues Items sent back to us without first requesting a return will not be accepted. To start a return, you can contact us at If your return is accepted, we’ll send you a return shipping label, as well as instructions on how and where to send your package. You’ll also need the receipt or proof of purchase. To be eligible for a return, your item must be in the same condition that you received it, unopened, and in its original packaging. No credits will be given to complaints that are received after 30 days from the date of purchase. We have a 30-day return policy, which means you have 30 days after receiving your item to request a return.
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