Vitamin D3 10,000 IU™
The Vitamin Deficiency That Affects Everything — Finally Fixed.
Low Vitamin D Affects Your Immune System, Hormones, Mood, and Bones — All at Once.
Dr. Taylor's Vitamin D3 10,000 IU with K2 corrects deficiency quickly and safely — the therapeutic dose used in functional medicine for immune support, hormone balance, and bone health.
Vitamin D3 10,000 IU™ Is Right for You If...
""Vitamin D deficiency is the most common nutrient deficiency I see in my practice — and it is almost always undertreated. Standard labs flag deficiency below 20 ng/mL, but optimal function requires 60–80 ng/mL. Most patients need 10,000 IU daily for 3–6 months to reach optimal levels. I always pair it with K2 because high-dose D3 without K2 can cause calcium to deposit in arteries rather than bones.""
About Vitamin D3 10,000 IU™
Vitamin D3 10,000 IU is the therapeutic dose Dr. Bell-Taylor uses to correct deficiency in her patients. Most OTC Vitamin D supplements (400–2000 IU) are insufficient to raise levels in deficient individuals. 10,000 IU is safe for daily use in adults and is the dose most commonly used in functional medicine to bring levels into the optimal range (60–80 ng/mL) within 3–6 months. Paired with Vitamin K2 (MK-7) to ensure calcium is directed to bones rather than arteries.
Frequently Asked Questions
What Our Customers Are Saying
Michelle H.
November 2025 · Google
“I needed help, and the Taylors were there when I wasn't sure I could get what I need. I have been under their care now for about a month and feel better than I have in at least 20 years. My anemia is being taken care of, my hormonal issues are being addressed. I would recommend them to anyone.”
Cheli L.
December 2024 · Google
“As a 45 year old woman approaching menopause, I initially reached out to an online HRT company to seek relief from symptoms. Then I found Taylor MD Formulations. The difference in care and the quality of the supplements has been remarkable. I feel like myself again.”
Piper N.
December 2023 · Google
“I have purchased many of these formulations and they all work. The approach to functional medicine is unlike anything I've experienced. The supplements are high quality and the results speak for themselves. My energy levels are through the roof.”
Renee M.
December 2023 · Google
“After 3 months of working with the Taylor MD team, I can honestly say this has been life-changing. I was skeptical at first, but the physician-formulated approach makes all the difference.”
Feel the Difference
Physician-formulated. Clinically dosed. Free shipping on orders over $75.
Translate