THORNE Vitamin D3 Supplement, 10,000 IU, 60 Capsules for Bone and Immune Support

THORNE Vitamin D-10,000 is a vitamin D3 supplement designed to support bone, teeth, immune and cardiovascular health, with a 10,000 IU strength and 60 capsules.

• Vitamin D3 (cholecalciferol) — supports calcium absorption for healthy teeth and bones.
• Supports immune function and cardiovascular health — provides vitamin D3 nutrient support.
• 10,000 IU strength and 60 capsules — a defined strength in a capsule format.
• Third-party tested and certified — verifies label contents and checks for unsafe levels of contaminants.
• Vitamin D3 rather than D2 — research shows D3 is more effective at raising overall vitamin D levels.

Vitamin D levels can be a concern for people who have limited access to sunlight or whose circumstances may affect natural vitamin D production. THORNE Vitamin D-10,000 provides vitamin D3 support for people seeking a supplement to complement those needs, including people living in northern latitudes, older adults, people with darker skin tones, and those without adequate sun exposure. Its stated purpose is nutrient support; it is not presented as a treatment for a health condition.

What does THORNE Vitamin D-10,000 support?

THORNE Vitamin D-10,000 is formulated to support healthy teeth and bones, immune function, and cardiovascular health. Vitamin D3 supports calcium absorption, connecting the nutrient to the product’s stated bone and teeth support. The formula uses cholecalciferol, the D3 form of vitamin D.

• Designed for vitamin D nutrient support.
• Includes a 10,000 IU strength.

Why does this supplement use vitamin D3?

THORNE Vitamin D-10,000 uses cholecalciferol, a form described as more potent and better absorbed than vitamin D2, or ergocalciferol. Research shows vitamin D3 is more effective at raising overall vitamin D levels. This makes the form of vitamin D a key distinction for shoppers comparing D3 with D2 supplements.

• Vitamin D3 form: cholecalciferol.
• Compared with D2: ergocalciferol.

Who is THORNE Vitamin D-10,000 intended for?

THORNE Vitamin D-10,000 offers vitamin D nutrient support for people who may have low vitamin D, including those living in northern latitudes, older adults, people with darker skin tones, and people without adequate sun exposure. Sun exposure is one factor in the body’s natural vitamin D production, so these circumstances are relevant when considering the product’s intended use.

• For people seeking vitamin D3 supplementation.
• 60 capsules per product.

THORNE is trusted by more than 100 professional sports teams and is the number one most recommended clinical brand by consumers and health-care practitioners, based on a 2026 independent survey of US supplement consumers and health-care practitioners. People looking for vitamin D3 in a defined 10,000 IU strength, with third-party testing and certification, will find those features in this 60-capsule supplement.

Ingredients

One Capsule Contains: Vitamin D (as Vitamin D3) (10,000 IU) 250 mcg. Other Ingredients: Microcrystalline Cellulose, Hypromellose (derived from cellulose) capsule, Leucine, Silicon Dioxide, Vitamin E (d-Alpha Tocopheryl).

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.