Calcium Supplements Can Lower Blood Lead Levels in Pregnant Women
Author Information
Author(s): Carol Potera
Primary Institution: National Institute of Environmental Health Sciences
Hypothesis
Can daily calcium supplementation during pregnancy reduce blood lead levels?
Conclusion
Daily calcium supplementation during pregnancy can significantly reduce blood lead levels.
Supporting Evidence
- Calcium supplementation reduced maternal blood lead by 15–20% during lactation.
- Women who took at least 75% of their calcium supplements had a 24% drop in blood lead levels.
- The greatest reduction in blood lead was seen in women who used lead-glazed pottery.
Takeaway
Taking calcium pills every day while pregnant can help lower the amount of lead in your blood, which is good for the baby.
Methodology
The study involved 557 pregnant women who received either calcium supplements or placebos, with blood lead levels measured throughout pregnancy.
Limitations
The study was conducted in a specific population in Mexico City, which may limit generalizability.
Participant Demographics
Women recruited from prenatal clinics in Mexico City during their first trimester of pregnancy.
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