Vitamin D-5000

What Is Vitamin D-5000?

Vitamin D-5000 by Thorne provides 5,000 IU of vitamin D3 per capsule, formulated for patients with confirmed vitamin D insufficiency or those requiring a higher therapeutic dose under practitioner guidance. This is the same potent, bioavailable form of vitamin D your skin produces from sunlight, now delivered in a rigorously tested, NSF Certified for Sport capsule that is gluten-free, dairy-free, and soy-free. With 60 servings per bottle, it offers a two-month supply at the therapeutic dose.

Key Benefits

• Supports rapid restoration of optimal vitamin D blood levels in patients who are insufficient or deficient
• Promotes robust immune function and seasonal immune health at a therapeutically relevant dose
• Helps maintain healthy bone density, calcium metabolism, and musculoskeletal integrity
• Supports cardiovascular health and healthy inflammatory response throughout the body
• May help support healthy mood and cognitive function, which are associated with adequate D levels
• NSF Certified for Sport — third-party tested for banned substances and label accuracy

Who Should Take This?

Vitamin D-5000 is most appropriate for adults with lab-confirmed vitamin D insufficiency (levels below 40 ng/mL), individuals living in low-sunlight regions or with limited outdoor exposure, patients recovering from illness or managing chronic immune challenges, and athletes requiring an NSF-certified supplement. Our doctors typically recommend this dose for an initial repletion period before transitioning patients to a lower maintenance dose.

How to Use

• Serving size: Take 1 capsule daily or as directed by your healthcare provider
• Timing: Take with a fat-containing meal to optimize absorption of this fat-soluble vitamin
• Duration: Typically used for 8–12 weeks during an active repletion phase; retest blood levels before continuing long-term at this dose
• Stacking: Best paired with vitamin K2 to direct calcium to bones rather than soft tissue, magnesium as a cofactor for D activation, and a comprehensive multivitamin

Our Doctors’ Take

Our doctors consider vitamin D testing and optimization a foundational step in every patient’s wellness protocol. We see deficiency consistently across patient populations regardless of diet or lifestyle, especially here in the South where counterintuitively patients spend much of the day in air-conditioned environments. Vitamin D-5000 is our preferred repletion option when labs confirm a patient needs therapeutic correction — the NSF certification gives us and our athletic patients added confidence in purity.*

*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.