Last Day On Sale
Free Shipping Available in the Continental U.S.
Free Shipping Available in the Continental U.S.
Net. 2 Fl. Oz. (60 ml)
Doctor Trusted
Dr. Thomas O’Connor’s Vitamin D3 + K1, K2 liquid blend supports strong bones, heart health, and calcium balance with customizable dosing and highly bioavailable forms of K2 for optimal cardiovascular protection.
Main Ingridients:
Vitamin D3 (as cholecalciferol), Vitmin K1 (as phylloquinone), Vitamin K2 (as menaquinone – 4 [MK-4], Vitamin K2 (as menaquinone – 7 [MK-7] )MenaQ7)
Other Ingridients:
Medium-chain triglyceride (MCT) oil (from coconut)
| Weight | 0.9375 lbs |
|---|---|
| Dimensions | 2 × 2 × 4 in |
| Purchase Type | One-time purchase, Subscribe & save 10% |
| Brand | Dr. O"Connor |
| Benefit | Supports arterial and musculoskeletal health |
| Suggested Use | Take one dropperful (one ml) daily or as recommended by a qualified health care professional |
| Form | Liquid |
| Size | 60 ml (2 fluid oz) |
| Serving Size | 1 dropperful ( 1 ml) |
| Serving per Container | 60 |
| Day Supply | 60 days |
| Country | United States |
| Facility | The product is manufactured in a state-of-art cGMP facility. |
| Manufactured for: | Dr. Thomas O'Connor M.D., AD Formulations, LLC |
| Shelf Life | 2 years |
| NSF Certification | Manufactured in a NSF-certified facility. |
| Product Type | Vitamins |
| Health Interests | Heart |
| Promotion | Sale |
Support your heart, arteries, and bones with Vitamin D3 + K1, K2, a premium, doctor-formulated blend created by Dr. Thomas O’Connor — The Trusted Doc. This advanced liquid formula features Vitamin D3 (2000 IU per serving) paired with Vitamin K1 and two clinically researched forms of Vitamin K2 — MenaQ7® (MK-7) and MenaQ4 (MK-4). Designed for fast absorption and easy daily use, this 2 fl oz formula promotes cardiovascular strength, healthy calcium metabolism, and overall vitality in every drop.
Developed with precision by Dr. O’Connor, this formula offers customizable dosing options to match your individual needs: choose 2000 IU, 4000 IU, or 6000 IU of Vitamin D3 per daily serving. The baseline 2000 IU dose delivers safe, effective support while reducing the risk of Vitamin D buildup or toxicity, making the formula ideal for long-term, consistent use — exactly the kind of practical, patient-centered solution Dr. O’Connor is known for.
Vitamin D3 is essential for calcium absorption, immune balance, and metabolic health, but it functions optimally when combined with adequate Vitamin K. Without Vitamin K, calcium may deposit in the arteries instead of being properly directed into bones — a concern that Dr. O’Connor addresses by pairing D3 with a complete spectrum of K vitamins.
This targeted blend features:
Vitamin K1 for foundational circulatory support
MenaQ7® (MK-7) — a long-acting, highly bioavailable K2 form that helps transport calcium into bones while keeping arteries clear and flexible
MenaQ4 (MK-4) — a fast-acting K2 form that supports cardiovascular and cellular function
Together, these nutrients work synergistically to promote arterial elasticity, maintain balanced calcium distribution, strengthen bones, and support optimal heart function — reflecting Dr. O’Connor’s holistic approach to cardiovascular and skeletal health.
The liquid delivery system ensures maximum absorption, flexible dosing, and effortless daily use. Just a few drops provide targeted, doctor-designed support for your heart, bones, and overall well-being.
Formulated with purity, potency, and clinical insight, Vitamin D3 + K1, K2 Liquid Formula by Dr. Thomas O’Connor — The Trusted Doc is the ideal choice for anyone looking to protect their heart naturally while maintaining strong bones and healthy circulation.
As a physiologist, I’ll be the first to tell you that your heart health truly matters. That’s why I designed Heart Defense – to make supporting your heart health easier and more delicious than ever.”
As a physiologist, I’ll be the first to tell you that your heart health truly matters. That’s why I designed Heart Defense – to make supporting your heart health easier and more delicious than ever.”
Yes! We use an encryption service to process your payment. Your credit card information is hidden from us and we do not store your credit card information. We use Stripe Payments secure encryption service to process all payments.
We currently accept all of the main credit cards—Visa, Mastercard and Amex. We also accept PayPal.
Please reach out to our customer support team via email for any order inquiries. support@droconnor.com
We currently ship worldwide! If you do not see your country listed in our checkout page, please send us an email at support@droconnor.com
Orders are usually shipped within 24–48 hours. If the order is placed before 1 PM, it should be shipped out the same day.
We offer a 30-day money-back guarantee on both opened and unopened bottles. Please contact our support team at support@droconnor.com within 30 days of receiving your order for instructions. Our customers are responsible for paying the shipping costs to return products.
Once shipped, USA continental shipments can take 3-7 business days. Worldwide shipments can take up to 3-20 business days, depending on the shipping service you choose. During the holidays, carriers may be delayed with their transit times.