Calcium
Scored by the Formulate Research Team · Last reviewed May 2026
Overview: Thorne Calcium
A concentrated calcium supplement for individuals most at risk for calcium inadequacy* A chelated form of calcium for enhanced absorption is more concentrated than other calcium forms, providing more calcium per capsule.
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 |
|---|---|
| CalciumDimaCal® DiCalcium Malate | 500 mg |
Certifications & Testing
Other Ingredients
Hypromellose (derived from cellulose) capsule, Calcium Laurate
Recommended Use
Take 1 capsule two 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 Calcium's Formulate score?
Thorne Calcium scores 95 out of 100 (grade A) on Formulate's ingredient-level rubric, which weighs evidence quality, dose accuracy, bioavailability, transparency, safety, and manufacturing practices.
Is Thorne Calcium worth it?
Thorne Calcium scores 95/100 (grade A). That puts it in Formulate's top tier: its ingredient doses, forms, and label transparency hold up against the clinical evidence, and it carries credible third-party testing. Formulate grades every product with the same automated rubric, so the score reflects the formula — not marketing or sponsorships.
What's in Thorne Calcium?
Each serving contains Calcium (500 mg). Serving size: 1 Capsule. 120 servings per container.
How do I take calcium?
Take 1 capsule two times daily or as recommended by your health-care practitioner.
Who makes Calcium?
Calcium is made by Thorne. See Formulate's full grade and product lineup for Thorne on its brand page.
Is Thorne Calcium 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.
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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.