D-1,000
D-1,000 scores 94/100 (A grade). Strengths: All ingredients have Grade A evidence.
Score Breakdown
Formulate scores every product across six weighted dimensions. Each dimension is graded independently — hover or tap to see what drove each component.
Ingredients per Serving
| Ingredient | Amount |
|---|---|
| Vitamin D (as Vitamin D3) | 1000 IU |
Certifications & Testing
Other Ingredients
Microcrystalline Cellulose, Hypromellose (derived from cellulose) capsule, Leucine, Silicon Dioxide, Vitamin E (d-Alpha Tocopheryl)
Recommended Use
Take 1 capsule one to three times daily or as recommended by your health-care practitioner.
Warnings
ALLERGY WARNING: This product is contraindicated in an individual with a history of hypersensitivity to any of its ingredients. PREGNANCY: If pregnant, consult your health-care practitioner before using this product. INTERACTIONS: There are no known adverse interactions or contraindications at publication date.
Frequently Asked Questions
What is Thorne D-1,000's Formulate score?
Thorne D-1,000 scores 94 out of 100 (grade A) on Formulate's ingredient-level rubric, which weighs evidence quality, dose accuracy, bioavailability, transparency, safety, and manufacturing practices.
What's in Thorne D-1,000?
Each serving contains Vitamin D (as Vitamin D3) (1000 IU). Serving size: One Capsule. 90 servings per container.
How do I take d-1,000?
Take 1 capsule one to three times daily or as recommended by your health-care practitioner.
Is Thorne D-1,000 third-party tested?
Thorne lists the following certifications and testing for this product: Gluten Free, Soy Free, Dairy Free, Natural Flavors, Natural Colors, Made in USA, Third-Party Contents Certified, Thorne Verified, GMP Certified.
Related Supplements
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Disclosure. Formulate may earn a commission from purchases made through links on this page. Commissions never influence scores — every product is graded by the same automated rubric. This page is for educational purposes only and does not replace advice from a qualified healthcare provider.