Nutrition
Split-Dose Calcium Intake
Split-dose calcium intake spreads calcium across meals for better absorption and tolerance—avoid single megadoses especially with carbonate.
Split-dose calcium intake divides daily calcium across two or three meals or smaller supplements—usually ≤500 mg elemental calcium per sitting—to match absorption limits and reduce bloating or constipation from carbonate. Take citrate with or without food; carbonate needs acid, often with meals.
Total daily needs depend on age and sex—often 1000–1200 mg from food plus supplements if diet falls short.
Common questions
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Should calcium and iron supplements be taken together?
Separate high-dose calcium and iron by a few hours—calcium can blunt iron absorption when both are supplemental.
Related terms
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