Vitamin D-5,000 - NSF Certified for Sport - 120 Servings
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Description
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Thorne Vitamin D-5,000 NSF Certified – High-Potency D3 for Strong Bones, Immune Resilience & Muscle Performance
Struggling with low vitamin D or looking to optimize performance? Thorne Vitamin D-5,000 NSF Certified for Sport delivers 5,000 IU of pure vitamin D3 per capsule (120 servings) to rapidly raise blood levels, enhance calcium absorption, support muscle strength, boost immunity, and maintain cardiovascular health—all with third-party verification against 300+ banned substances for athlete-safe use.
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5,000 IU vitamin D3 rapidly corrects deficiencies in high-risk individuals, including indoor athletes, older adults, or those in northern climates.
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NSF Certified for Sport® ensures zero contaminants and WADA-compliant safety for professional competitors.
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Muscle function support maintains strength, endurance, and recovery for training and competition.
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Immune defense promotes seasonal and respiratory resilience.
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Bone density enhancement through superior calcium utilization compared to D2.
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Clean, hypoallergenic capsule – no lactose, preservatives; potency third-party verified.
Thorne uses cholecalciferol (D3), clinically proven to be up to 10x more bioavailable than D2, with research-backed high-dose 5,000 IU ideal for athletes, obese individuals, or anyone needing rapid replenishment. Each batch undergoes dual third-party testing for label accuracy and banned substances, far exceeding standard vitamin D supplements.
Perfect for correcting deficiency (affecting ~42% of adults per NHANES), maintaining bone-muscle health, or optimizing performance when sunlight exposure is low. Pair with vitamin K2 to support calcium delivery to bones and prevent soft tissue buildup while maintaining peak immune and physical function.
5-Star Reviews from Real Customers
"Blood D levels from 25 to 65 ng/mL in 8 weeks. PRs followed!" – Amir W.
"No colds all season. NSF certification = total confidence." – Zayn W.
"Muscle recovery improved, power steady. Serious dose works." – Kaia S.
"Winter immunity bulletproof. Clean, potent D3." – Nadia A.
"Bone density scan improved. Athlete-approved purity." – Omar V.
How to Use
Take 1 capsule daily with a meal, or follow your healthcare provider’s guidance. Ideal for deficiency correction; retest levels after 8–12 weeks to adjust dosing.
FAQs
Does it correct deficiency faster?
Yes – 5,000 IU daily can raise blood 25(OH)D by ~10 ng/mL in 4–6 weeks, versus months on lower doses.
Safe for athletes?
Absolutely – NSF Certified for Sport®, screened against 300+ banned substances.
Why choose D3 over D2?
D3 is clinically 87% more effective at raising and sustaining blood levels.
Who benefits most?
Indoor athletes, obese adults, older individuals, darker skin tones, or residents of northern latitudes.
Should it be paired with K2?
Yes – K2 ensures calcium is directed to bones rather than soft tissues, maximizing safety and efficacy.
Toxicity risk?
Safe at 5,000 IU/day; levels above 10,000 IU should be monitored with blood tests.
Warnings & Disclaimers
Consult a healthcare provider if pregnant, nursing, or hypersensitive to ingredients. No known interactions. These statements have not been evaluated by the FDA. Not intended to diagnose, treat, cure, or prevent disease.
