Product Description
A large share of adults fall short of the 1,300mg of daily calcium the FDA recommends, and that gap tends to widen for vegans, vegetarians, and anyone with reduced vitamin D status, since vitamin D governs how well your body actually absorbs the calcium you take in.
Thorne's Calcium delivers 250mg of DiCalcium Malate per capsule, supporting strong bones and teeth, healthy nerve signaling, and normal muscle contraction
Supports bone strength – Calcium is the primary mineral your body uses to build and maintain bone density, directly relevant to a training load that puts repetitive stress on your skeleton.
Supports optimal muscle contraction – Calcium triggers the contraction half of the muscle cycle, so keeping your levels adequate matters for how well your muscles fire during hard efforts.
Fits into your rountine – You get the bone and muscle benefits of calcium without needing to rebalance whatever magnesium you're already taking separately.
Calcium plays a central role in bone mineralization, and the risk of falling short runs highest for vegans, vegetarians, peri- and postmenopausal women, and anyone on medications that affect calcium absorption or loss. DiCalcium Malate's chemical structure is what gives it an edge over other calcium forms, delivering more elemental calcium per capsule while remaining well tolerated. Since vitamin D governs how efficiently your body absorbs calcium in the first place, pairing this with adequate vitamin D status matters as much as the calcium dose itself.
How to Use Thorne Calcium
Dose: Take one capsule two times daily, or as recommended by your health professional.
Note: Calcium can interfere with the absorption of certain antibiotics, thyroid medication, and bisphosphonates. Space this a few hours apart from those medications, and check with your pharmacist if you're unsure.
Excessive calcium intake over time has been linked to kidney stones and can impair absorption of other minerals, so stick to the suggested use unless your practitioner directs otherwise. Consult your health professional before use if pregnant.
- Gluten free
Supplement Facts
120 Servings
Serving Size: 1 Capsule
Serving Per Container: 120
| Amount Per Serving | ||
|---|---|---|
| % Daily Value* | ||
| Calcium (as DimaCal® DiCalcium Malate)† 250mg | ** | |
* Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.
** Daily Value (DV) not established
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We do not accept returns on food items that have been opened, but we will issue a store credit if you are unsatisfied. In the event of a return, you must first contact us before sending back a return shipment.
Consumable products over $40 receive a 50% store credit. This includes specialty nutrition products such as ketones or supplements/vitamins.
Thorne Calcium FAQ's
Everything you need to know about Thorne Calcium.



Repetitive training stress puts real demand on bone density, and calcium is the primary mineral your body uses to build and maintain it. It also supports the muscle contractions behind every hard effort.
It delivers 29% elemental calcium per capsule, versus 19% from calcium citrate, so you get more usable calcium without extra capsules.
Take one capsule twice daily, or as recommended by your health professional.
No. Vitamin D governs how well your body absorbs calcium, so adequate vitamin D status matters as much as the dose itself.
Yes. Calcium can interfere with certain antibiotics, thyroid medication, and bisphosphonates, so space doses a few hours apart and check with your pharmacist if unsure.