High-potency vitamin D3 supports bone, immune, and muscle health
Pure, allergen-free formula—no gluten, dairy, or soy
Clinician trusted and third-party tested for safety and accuracy
10,000 IU | Bone & Teeth Strength | Immune & Heart Health | Non-GMO | Made in USA | GMP Certified
Thorne Vitamin D-10,000 IU provides a high-potency dose of vitamin D3 (cholecalciferol) in a single capsule—ideal for individuals with limited sun exposure, darker skin tones, older adults, or anyone who needs aggressive supplementation for low vitamin D levels. Vitamin D3 is the preferred form of vitamin D because it is better absorbed and utilized by the body compared to vitamin D2.
Supports Bone & Dental Health
Enhances calcium absorption and retention to maintain strong bones and teeth.
Promotes Muscle Strength
Helps maintain muscle function and lean body mass, especially important with aging.
Boosts Immune & Cardiovascular Function
Plays a critical role in immune modulation, heart health, and healthy blood vessels.
High-Potency D3, No Fillers
Pure formula free of gluten, dairy, soy, and artificial additives for clean supplementation.
Q: Is it safe to take 10,000 IU daily?
A: High doses should only be taken under the supervision of a healthcare professional. The typical upper safe limit is 4,000 IU/day unless your provider recommends higher therapeutic dosing for deficiency.
Q: Who needs this dosage?
A: People with limited sun exposure, darker skin, older age, or conditions that reduce vitamin D absorption.
Q: How should I take it?
A: Take with a fat-containing meal for optimal absorption. Periodic blood testing is recommended for those on high doses.
Manufactured in the USA, in a GMP-certified facility, with non-GMO ingredients, and third-party tested for purity and potency. Trusted by healthcare professionals and top athletes worldwide.
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Helps calm mind and reduce stress.
Supports healthy, restful sleep.
Promotes nervous system balance.
