







Vitamin D-5,000 - NSF Certified for Sport - 120 Servings
Thorne Vitamin D-5,000 NSF Certified – 5,000 IU D3 for Serious Bone Strength, Immunity & Muscle Power
Low vitamin D robbing your performance or resilience? Thorne Vitamin D-5,000 NSF Certified for Sport packs 5,000 IU pure D3 per capsule (120 servings) – the gold-standard form for rapid blood level correction – supporting calcium absorption, immune defense, muscle function, and cardiovascular health while clearing 300+ banned substances for elite athletes.
-
5,000 IU D3 rapidly corrects deficiency in high-risk individuals (indoor athletes, northern climates).
-
NSF Certified for Sport guarantees zero contaminants or doping risks.
-
Muscle strength support maintains power output for training and competition.
-
Immune optimization bolsters respiratory and seasonal defense.
-
Bone density enhancement via superior calcium utilization over D2.
-
Clean capsule – no lactose, preservatives, third-party potency verified.
Thorne delivers cholecalciferol (D3) – clinically 10x more bioavailable than D2 – in research-backed 5,000 IU dosing ideal for obese individuals, malabsorption cases, or athletes with high turnover needs. Every batch undergoes dual third-party testing: label accuracy plus comprehensive banned substance screening, far exceeding standard vitamin D supplements.
Perfect for deficiency correction (42% prevalence per NHANES), performance optimization, or maintenance when sunlight exposure drops – pairs with K2 to direct calcium properly while sustaining peak physical and immune function.
5-Star Reviews from Real Customers
"Blood D levels from 25 to 65 ng/mL in 8 weeks. PRs followed!" – Axel R.
"No colds all season. NSF certification = total confidence." – Kayden T.
"Muscle recovery improved, power steady. Serious dose works." – Zion S.
"Winter immunity bulletproof. Clean, potent D3." – Riley H.
"Bone density scan improved. Athlete-approved purity." – Skylar U.
How to Use
Take 1 capsule Thorne Vitamin D-5,000 daily with food, or as recommended by your healthcare practitioner.
Ideal for documented deficiency; retest levels after 8-12 weeks to adjust.
FAQs
Corrects deficiency faster?
5,000 IU raises blood levels 10 ng/mL in 4-6 weeks vs. months on lower doses.
Safe for athletes?
NSF Certified screens 300+ banned substances – WADA compliant.
D3 vs D2 superiority?
87% better absorption; sustains levels longer per clinical trials.
High-risk groups?
Indoor athletes, obese, elderly, dark skin, northern latitudes – all benefit most.
Pairs with K2?
Essential – prevents soft tissue calcification while maximizing bone delivery.
Toxicity concerns?
Safe below 10,000 IU daily; monitor with bloodwork for optimization.
Warnings & Disclaimers
Consult if pregnant or hypersensitive to ingredients. No known interactions. These statements not evaluated by FDA. Not intended to diagnose, treat, cure, or prevent disease.
Original: $39.00
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Description
Thorne Vitamin D-5,000 NSF Certified – 5,000 IU D3 for Serious Bone Strength, Immunity & Muscle Power
Low vitamin D robbing your performance or resilience? Thorne Vitamin D-5,000 NSF Certified for Sport packs 5,000 IU pure D3 per capsule (120 servings) – the gold-standard form for rapid blood level correction – supporting calcium absorption, immune defense, muscle function, and cardiovascular health while clearing 300+ banned substances for elite athletes.
-
5,000 IU D3 rapidly corrects deficiency in high-risk individuals (indoor athletes, northern climates).
-
NSF Certified for Sport guarantees zero contaminants or doping risks.
-
Muscle strength support maintains power output for training and competition.
-
Immune optimization bolsters respiratory and seasonal defense.
-
Bone density enhancement via superior calcium utilization over D2.
-
Clean capsule – no lactose, preservatives, third-party potency verified.
Thorne delivers cholecalciferol (D3) – clinically 10x more bioavailable than D2 – in research-backed 5,000 IU dosing ideal for obese individuals, malabsorption cases, or athletes with high turnover needs. Every batch undergoes dual third-party testing: label accuracy plus comprehensive banned substance screening, far exceeding standard vitamin D supplements.
Perfect for deficiency correction (42% prevalence per NHANES), performance optimization, or maintenance when sunlight exposure drops – pairs with K2 to direct calcium properly while sustaining peak physical and immune function.
5-Star Reviews from Real Customers
"Blood D levels from 25 to 65 ng/mL in 8 weeks. PRs followed!" – Axel R.
"No colds all season. NSF certification = total confidence." – Kayden T.
"Muscle recovery improved, power steady. Serious dose works." – Zion S.
"Winter immunity bulletproof. Clean, potent D3." – Riley H.
"Bone density scan improved. Athlete-approved purity." – Skylar U.
How to Use
Take 1 capsule Thorne Vitamin D-5,000 daily with food, or as recommended by your healthcare practitioner.
Ideal for documented deficiency; retest levels after 8-12 weeks to adjust.
FAQs
Corrects deficiency faster?
5,000 IU raises blood levels 10 ng/mL in 4-6 weeks vs. months on lower doses.
Safe for athletes?
NSF Certified screens 300+ banned substances – WADA compliant.
D3 vs D2 superiority?
87% better absorption; sustains levels longer per clinical trials.
High-risk groups?
Indoor athletes, obese, elderly, dark skin, northern latitudes – all benefit most.
Pairs with K2?
Essential – prevents soft tissue calcification while maximizing bone delivery.
Toxicity concerns?
Safe below 10,000 IU daily; monitor with bloodwork for optimization.
Warnings & Disclaimers
Consult if pregnant or hypersensitive to ingredients. No known interactions. These statements not evaluated by FDA. Not intended to diagnose, treat, cure, or prevent disease.





















