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Calcium Carbonate vs. Calcium Citrate: Which Supplement Is Better for You?

Calcium is essential for strong bones, teeth, and proper muscle function. Two common forms of calcium supplements are calcium carbonate and calcium citrate. Understanding their differences can help you choose the best option for your needs.

Calcium Carbonate
– Higher Calcium Content: Contains about 40% elemental calcium, making it more concentrated.
– Cost-Effective: Typically more affordable than calcium citrate.
– Best with Food: Requires stomach acid for absorption, so it should be taken with meals.
– Common Side Effects: May cause constipation or bloating in some individuals.

Calcium Citrate
– Better Absorption: Doesn’t require stomach acid, making it ideal for older adults or those with low stomach acid (e.g., acid reflux medication users).
– Lower Calcium Content: Contains about 21% elemental calcium, so higher doses may be needed.
– Can Be Taken Anytime: Works well with or without food.
– Gentler on Digestion: Less likely to cause constipation compared to calcium carbonate.

Which One Should You Choose?
– For most people with normal stomach acid: Calcium carbonate is cost-effective and efficient when taken with meals.
– For seniors or those with digestive issues: Calcium citrate offers better absorption and fewer side effects.

Always consult your doctor before starting any calcium supplement to ensure proper dosage and avoid interactions with medications.