THORNE Vitamin D3 5,000 IU Capsules, 60 Count — High-Potency, NSF Certified for Sport

THORNE Vitamin D-5,000 is a high-potency vitamin D3 supplement delivering 5,000 IU per capsule to support healthy bones, immune resilience, and athletic recovery.

Many people, especially those who train indoors, live in northern latitudes, or spend limited time outdoors, don’t get enough vitamin D from sunlight or diet alone. THORNE’s Vitamin D-5,000 supplies cholecalciferol (vitamin D3), the form shown to raise blood vitamin D levels more effectively than vitamin D2. Each bottle contains 60 easy-to-swallow capsules and is NSF Certified for Sport, meaning athletes can choose it with confidence for sport-safe supplementation.

How does this supplement support bone and dental health?

Vitamin D3 helps the body use calcium and phosphorus, nutrients that are important for maintaining bone mineral density and tooth integrity. Providing 5,000 IU per capsule gives a concentrated dose for those needing higher intake under guidance from a healthcare professional.

• Cholecalciferol form for efficient absorption and blood level improvement
• 5,000 IU per capsule to support higher daily requirements when recommended
• 60 capsules for a two-month supply at daily use

Will this product help athletes and people who exercise frequently?

Adequate vitamin D is linked to muscle function and cellular repair processes that matter for training and recovery. THORNE’s formula is NSF Certified for Sport, tested to be free from many banned substances, so it’s suitable for competitive athletes who need reliable, tested supplements.

• Supports muscle performance and repair in active individuals
• NSF Certified for Sport — tested against nearly 300 banned substances
• Trusted by professional sports teams and clinicians for quality

How should I take THORNE Vitamin D-5,000 and how quickly does it work?

Take one capsule daily or follow the dosing plan advised by your healthcare practitioner. Blood levels of vitamin D typically change over weeks to months, so regular use and periodic monitoring are recommended to confirm your status and adjust dosing if needed.

• One capsule per day unless otherwise instructed by your clinician
• Allow weeks to months for measurable changes in blood vitamin D levels
• Routine testing helps tailor dose to individual needs

Is this product safe and how is quality ensured?

THORNE manufactures using quality controls and independent testing; this product carries NSF Certification for Sport to verify label accuracy and absence of many prohibited compounds. As with any supplement, discuss use with a healthcare provider, especially if you take medications or have underlying health conditions.

• NSF Certified for Sport for third-party testing and label compliance
• Formulated as vitamin D3 (cholecalciferol), the preferential form for raising vitamin D status
• Produced by a brand widely used by clinicians and sports teams

Who is this for? THORNE Vitamin D-5,000 is intended for adults seeking an effective vitamin D3 supplement at a higher potency—particularly athletes, clinicians’ patients, people with limited sun exposure, or anyone whose testing indicates they need a stronger dose. It is not a substitute for professional medical advice; consult your healthcare practitioner before beginning high-dose vitamin D, especially if pregnant, nursing, taking prescription drugs, or managing a health condition.

Ingredients

One Capsule Contains: Vitamin D (as Vitamin D3) (5,000 IU) 125 mcg. Other Ingredients: Microcrystalline Cellulose, Hypromellose (derived from cellulose) capsule, Leucine, Silicon Dioxide, Vitamin E (d-Alpha Tocopheryl).