Thorne Calcium-Magnesium Malate

Calcium and magnesium are the two minerals responsible for the contract-relax cycle that powers your muscles every day. They work as opposing forces inside every muscle cell you have, including the one in your chest keeping your heart rhythm steady.

Thorne's Calcium-Magnesium Malate pairs both minerals in a 1:1 ratio and a single capsule, so you're supporting bone and muscle health with two essential minerals in one balanced formula.

Supports the muscle contract-relax cycle directly – Calcium triggers muscle contraction while magnesium triggers relaxation, and having both minerals adequately available matters for how well that cycle functions.

Relevant to heart rhythm too – Since your heart is a muscle, the same contract-relax mechanism that affects your legs during a hard effort also plays a role in maintaining a steady heartbeat.

A simpler way to cover two minerals at once – A 1:1 calcium-to-magnesium ratio in one capsule, rather than needing to dose and balance two separate products.

Calcium plays a central role in bone mineralization, and research on well-absorbed calcium forms shows a consistent benefit for bone mass across age groups. Magnesium is involved in more than 600 enzymatic reactions throughout the body, well beyond its muscle-relaxing role, touching everything from nerve signaling to blood sugar regulation. The malate form used here is chosen for its absorption profile. Nutrition experts don't fully agree on the ideal calcium-to-magnesium ratio, with some literature favoring 2:1 and others favoring the 1:1 ratio used in this formula.

How to Use Thorne Calcium-Magnesium Malate

Dose: Take one capsule three times daily, or as recommended by your health-care practitioner. Taking it with food may improve comfort.

Gas, bloating, or diarrhea can occur in some people from the magnesium content and typically resolves at a lower dose. 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-care provider before use if pregnant, nursing, or trying to conceive.