A white bottle of Thorne Calcium dietary supplement with 120 capsules, featuring modern abstract artwork on the label and text indicating enhanced absorption. White supplement bottle with a label showing Supplement Facts, listing calcium as DimaCal® DiCalcium Malate (250 mg, 19% Daily Value) and additional ingredients. Company and regulatory information appear below. White supplement bottle with icons and text showing bone support and foundational benefits. Suggested use and tamper evidence instructions are visible, along with gluten free and NSF certified symbols. Supplement facts label showing one capsule contains 250 mg of Calcium (as DimaCal DiCalcium Malate), which is 19% daily value. Other ingredients: hypromellose capsule, medium chain triglyceride oil. A bottle of Thorne dietary supplement sits on a table beside a glass of water, a green potted plant, a stack of books, and a green clock against a neutral background.
A white bottle of Thorne Calcium dietary supplement with 120 capsules, featuring modern abstract artwork on the label and text indicating enhanced absorption.

Thorne Calcium

120 count

Why we love it

  • Free from 3,000+ banned ingredients and meets our EU-informed standards.
  • Unique chelated form enhances calcium absorption, offering a concentrated intake per capsule.
  • Thoughtfully designed for those at risk for inadequate calcium intake, including menopausal women and vegans.
  • Free from dairy and gluten; perfect for individuals with specific dietary restrictions.
Purchase options

Calcium $28.00

Free carbon neutral shipping on orders $29+. Arrives in 3–5 days. Free, easy 30-day returns.

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.

Research indicates that a large proportion of the U.S. adult population does not consume the 1,300 mg of calcium the U.S. Food and Drug Administration recommends for daily dietary intake. Individuals who are at the most risk for calcium inadequacy because of decreased intake, disordered metabolism, decreased absorption, increased loss, or increased need include peri- and postmenopausal women, vegans, individuals who take certain prescription and OTC medications, and those with a vitamin D deficiency (because vitamin D is necessary for calcium absorption).* Thorne's Calcium, as DiCalcium Malate, with 250 mg per capsule, is more concentrated than other forms of calcium (such as calcium carbonate), and is absorbed significantly better than calcium carbonate.*

Calcium consists of one molecule of malic acid that is bound to two molecules of calcium, which results in a compound that is 29-percent calcium – compared to calcium citrate, which is 19-percent calcium – thus resulting in more elemental calcium per capsule.

Those individuals most at risk for inadequate calcium intake are:

  • Peri-menopausal and post-menopausal women
  • Women with irregular menstruation, particularly women in which this is due to prolonged athletic activity or strenuous military service
  • Individuals on a dairy-free diet
  • Vegetarians and vegans, because their diets are higher in plant-derived phytates and oxalates that inhibit calcium absorption
  • Pregnant women, particularly women with a history of gestational hypertension
  • Individuals on prescription and OTC medications such as antacids (H2 blockers or proton pump inhibitors) that can inhibit absorption, or glucocorticoids such as prednisone that can increase calcium loss
  • Individuals with a vitamin D deficiency – because vitamin D is necessary for calcium absorption

*Note: 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. Consult your physician before adding a dietary supplement to your diet.

One Capsule Contains: Calcium (as DimaCal® DiCalcium Malate)† 250 mg

Other Ingredients: Hypromellose (derived from cellulose) capsule, Medium Chain Triglyceride Oil.

*Note: 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. Consult your physician before adding a dietary supplement to your diet.

Take 1 capsule two times daily or as directed by a health-care practitioner.

Grove Values

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Wellness, proven and transparent

Thorne began with a biochemist’s vision: supplements should be grounded in clinical research and ingredient integrity. Every formula is made without unnecessary additives, using carefully sourced ingredients that are fully disclosed and traceable. Third-party testing and NSF Certified for Sport® standards ensure each supplement meets the highest bar for families who want to know exactly what they’re putting in their bodies.

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3,000+ BANNED INGREDIENTS

Wellness formulas you can trust.

Every wellness product is reviewed by experts and screened for ingredients and materials that align with Grove’s strict standards — so you can feel good about what you and your family rely on to feel your best.

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Vetted for ingredient integrity

No artificial colors, flavors, or phthalates — all common in mainstream products

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No unnecessary extras

Free from artificial dyes, talc, titanium dioxide, and magnesium stearate

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Less plastic, fewer microplastics

Prioritized packaging options that reduce plastic waste and microplastic exposure

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Go Beyond Plastic™ and microplastics.

Plastic products break down into microplastics that can affect human health.

Grove Co. is on a mission to reduce plastic in home essentials — for both people and for the planet.

Learn more on the Home Planet blog