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Side effects of calcium citrate

Answer updated ยท Editorial policy

Quick answer

Calcium citrate can still cause digestive symptoms such as gas, bloating, or constipation. Check elemental calcium and the total from food and supplements, plus medication timing.

Label check

  • Active ingredient amount per serving
  • Warnings for medications, medical conditions, pregnancy, or procedures
  • Added ingredients that may change tolerance
  • Stop-use or urgent-care signals on the label

Safety and when to get advice

  • Compare dietary intake, kidney stone history, kidney disease, constipation, and medication timing.

What the evidence can tell you

Research findings depend on the preparation, dose, population, and outcome studied. Ingredient evidence does not establish that every product works, and an absence of reported side effects cannot rule out uncommon reactions.

Sources and label references