What it does: Calcium carbonate supplies elemental calcium, which plays a key role in forming and maintaining bone structure, keeping teeth healthy, supporting normal muscle movement, and enabling nerve signaling.
How it is used: People commonly use calcium carbonate to support bone strength, healthy teeth, and to address low calcium intake, particularly for osteoporosis risk or during increased need such as pregnancy or aging.
Natural sources and supplement forms: It is naturally found in limestone, marble, chalk, eggshells, and marine shells, and is used in supplements as tablets, chewables, and powders containing purified calcium carbonate.
Why it appears in supplement formulas: Its high calcium concentration and affordability make calcium carbonate a practical option for satisfying the body’s calcium requirements.
What to know before use: Calcium carbonate may cause constipation or digestive discomfort in some people and those with kidney stones or certain medical issues should consult a healthcare provider before using it regularly.
Interesting Fact
Calcium Carbonate: A Key Mineral Found in Everyday Foods
Calcium carbonate is the main form of calcium found in rocks like limestone and in many foods such as leafy green vegetables and dairy products. It’s commonly used in supplements to support daily calcium intake because it provides a concentrated source of elemental calcium, which the body uses to maintain healthy bones, teeth, and normal muscle function.
