Did You Know?
Experts recommend 50 ng/nL of serum Vitamin D as a minimum for reproductive and prenatal health.
Active Ingredient Basics
Vitamin D3
Cholecalciferol
What is it?
Vitamin D3 (cholecalciferol) is the natural form of Vitamin D that human skin synthesizes from sun exposure.
Vitamin D3 (cholecalciferol) is the natural form of Vitamin D that human skin synthesizes from sun exposure.
Why is it needed?
Vitamin D is essential in bone health and helps with the maintenance of calcium homeostasis*. Studies suggest Vitamin D plays multiple roles in systemic health beyond bone health*. Over 70% of the U.S. population does not get enough Vitamin D from sun exposure and diet.
Vitamin D is essential in bone health and helps with the maintenance of calcium homeostasis*. Studies suggest Vitamin D plays multiple roles in systemic health beyond bone health*. Over 70% of the U.S. population does not get enough Vitamin D from sun exposure and diet.
How does it work on a cellular level?
After Vitamin D3 is converted into calcitriol, its active form, it supports higher calcium levels in the blood by supporting calcium absorption in the intestines and maintaining calcium reabsorption in the kidney*.
After Vitamin D3 is converted into calcitriol, its active form, it supports higher calcium levels in the blood by supporting calcium absorption in the intestines and maintaining calcium reabsorption in the kidney*.
Why is it important for fertility?
Vitamin D maintains the health of the mom's bones and teeth while also supporting the development of strong bones and teeth for the baby*. Studies also suggest that healthy Vitamin D levels may support reproductive health in both men and women*.
Vitamin D maintains the health of the mom's bones and teeth while also supporting the development of strong bones and teeth for the baby*. Studies also suggest that healthy Vitamin D levels may support reproductive health in both men and women*.
Vitamin D3 with K2 benefits
Vitamin D3
Cholecalciferol
Vitamin D helps build and maintain strong bones and teeth*. Healthy Vitamin D levels have been associated with male and female reproductive health*. D3 is the natural form of Vitamin D that the skin synthesizes from sun exposure.
Vitamin K2
Menaquinone-7
Working together with Vitamin D, Vitamin K helps maintain bone health by facilitating the bonding of calcium to the bone*. Studies have suggested that the menaquinone-7 form of Vitamin K may be more bioavailable than other forms.
QUALITY IS IN THE DETAILS
Expert developed
Each product is designed in collaboration with a leading researcher in the ingredient field.
Triple-tested
Independent verification ensures the potency and quality of our products.
Patented
The only fertility nutraceutical company that holds 10 patents for our formulations and technology in the US and Canada.
Formulated for reproductive health
Our products are evaluated and studied for their specific effect on male and female reproductive health.
Our Lead Scientist
Bruce Hollis, PhD
Director and Professor of Pediatric Nutritional Science, Medical University of South Carolina
Dr. Bruce Hollis is a nutritional biochemist who has spent his entire career researching Vitamin D. He is the leading expert in Vitamin D's role in pregnancy and pediatric development, with over 300 peer-reviewed articles that have been cited more than 57,000 times. His groundbreaking work in Vitamin D and pregnancy has resulted in clinical practice changes nationwide.
Proven. Trusted.
We only publish real reviews by real customers. We’d love to post every review that’s submitted, but because of FDA and FTC regulations, there are some we can’t.
Recommended at Fertility Clinics Globally
New York, NY, USA
London, United Kingdom
London, United Kingdom
The basics of Vitamin D3 with K2
Ready to talk with your doctor? Download a PDF summary sheet to start a conversation.
Vitamin D3 with K2 supports systemic health during the preconception period, pregnancy and the postnatal period*.
Vitamin D3 and K2 do not commonly cause side effects when taken in the appropriate dosage range. Refer to the supplement insert for side effects associated with excess intake.
Every batch of Vitamin D3+K2 undergoes a triple-step quality assurance process, including potency and contamination testing at independent laboratories.
Non-GMO, vegan, vegetarian, soy-free, made with organic olive oil. No artificial colors, sweeteners, or preservatives.
Manufactured in the United States at a NSF-certified facility under cGMP standards.
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