To meet the unique nutritional needs of different people, NBI has created two versions of Osteo-K, the original Osteo-K® formula and Osteo-K Minis. If you're not sure which product is right for you, click here.
Osteo-K contains a 45 mg of MK4®, also called menaquinone-4 and menatetrenone, calcium and vitamin D. MK4 is a form of natural Vitamin K2. As a nutrient, MK4 has many positive effects on the body. Research on MK4 (45 mg/day) show that it builds stronger bones and promotes healthy blood production in people with myelodysplastic syndrome (MDS) and acute myeloid leukemia (AML).
Bone Support and Fracture Reduction: The Archives of Internal Medicine confirms that 45 mg of MK4 daily can decrease the risk of vertebral fractures by 60%, hip fractures by 71% and all nonvertebral fractures by 81% (Cockayne S et al. Arch Intern Med. 2006;166(12):1256-1261).
Cancer Support: The US FDA reviewed the research on MK4 (45 mg/day) for people with acute myeloid leukemia (AML) and myelodysplastic syndrome (MDS). The FDA concluded that MK4 has the potential to treat these diseases, and awarded Dr. Neustadt’s company, NBI Pharmaceuticals, Inc. Orphan Drug Designation for MK4 for AML and MDS. As a dietary supplement, MK4 is not approved as a medication to diagnose, treat, prevent or cure any disease, but it can be taken as a dietary supplement to support healthy cell function.
SAFETY: Clinical trials published in medical journals document more than 7,000 people (view tables summarizing these studies) taking 45 mg daily (and higher doses) of MK4 for up to eight years without any serious side effects. The US Institutes of Medicine (IOM) states that natural vitamin K, which includes MK4, has no known “tolerable upper limit,” which means it’s considered safe even in doses much higher than that found in Osteo-K and Osteo-K Minis.
CAUTION: People taking the anticoagulant medication warfarin (Coumadin) should not take this product since vitamin K interferes with this medication.
180 capsules per bottle, a 30-day supply
More than 100 citations support the ingredients in Osteo-K and Osteo-K Minis for bone health, cardiovascular health and cancer support.
Gluten Free | Corn Free | Soy Free | Dairy Free
I've been using Osteo-K for over 10 years. Ibeleive it has grown my bones back - better than Boniva, which I used for 5 years, before fracturing my pelvis.
I have osteopenia and have been using Osteo K for over 2 years. My last bone density was improved. I am very happy with the results ans will continue to take this formula for many years to come. I also take a large dose of magnesium, separately for better results. Thank you very much.
It's wonderful that you're getting such great results taking Osteo-K. Thank you for leaving a review.
Ordering was easy, product available, good quality product with a good reputation. I got good quick service and feel I am taking a good clean product. I would recommend to others. I trust my doctor has recommended a very good product for my condition.
Thank you for leaving a review and sharing your experience. I’m glad ordering was easy. Your doctor did make an excellent recommendation with Osteo-K. I formulated it for my patients and love that other doctors are also using it to help theirs. In health, Dr. John Neustadt Founder and President, NBI
Excellent. We love this product and the staff person was wonderful. Very efficient and personable.
Thank you for your review and sharing your experience with our customer service staff. We're thrilled that you love Osteo-K and the service we provide.
I find the process of ordering very easy and convenient. Since my Nature Doctor recommended this product, I have full confidence that it is of the utmost quality, and will help my condition.
I'm glad you found our store easy to use. We strive to provide an exceptional experience to our customers, both for shopping and with our clinically validated products. Thank you for your review and sharing your experience.
At 60, I have great bone density per Dexa scans. While I do several things to be proactive to help my bones , I believe this product is a huge part of my health success. Nothing else like it on the market and the research backs up its effectiveness. And NO side effects!! I highly suggest you read the research.
Thank you or your review. We're thrilled you're loving Osteo-K and its helping you.
Like the product but think it's ridiculous to have such a small amount in a large bottle. Also wish you didn't involve USPS in delivery process. They are terrible!
Thank you for your five-star review. I'm glad you like the product. I understands your concern about the bottle size. When we first created the product more than a decade ago, we looked at putting it in a smaller bottle; however, if the bottler were any smaller than it its now, we determined that it the lettering on it would have to be so small that it would be extremely difficult (if not impossible for many people) to read the label. The current bottle size is the smallest bottle we could use while still being able to have a label that people could easily read.
I've been taking Osteo-K for a few years now with fairly good results. But a year ago, I called Dr. Neustadt to see what advice he could offer to help me obtain better T-scores, since it appeared Osteo-K, exercise and weight lifting weren't enough. After a brief discussion, I learned that Osteo-K needs to be taken with FAT to get the full bone absorption benefit. One year later, here are my T-scores: 2018 - Hip: +0.2 2019 - Hip: -0.1 2018 - Lumbar Spine: -3.3 2019 - Lumbar Spine: -2.2 My PPO was amazed at the results and wrote "Significantly Improved" , check again in one year. I am overjoyed with these scores and I feel great! Thanks, Dr. Neustadt.
Thank you for sharing your experience with Osteo-K. We're thrilled that it's helped you. That's wonderful that once you started taking the product as recommended on the bottle (with meals) you had such great results.