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[Sodium intake during pregnancy]
F M Delemarre1, A Franx, M Knuist
1Catharina Ziekenhuis, afd. Obstetrie en Gynaecologie, Eindhoven.
Nederlands Tijdschrift Voor Geneeskunde
|November 24, 1999
Summary
Dietary sodium restriction during pregnancy does not prevent or treat hypertension. This intervention led to negative maternal side effects and nutrient deficiencies, with no observed benefits on blood pressure.
Area of Science:
- Obstetrics and Gynecology
- Nutritional Science
- Cardiovascular Health
Context:
- Hypertension in pregnancy is a significant concern with varied international findings on dietary interventions.
- Three Dutch studies investigated the role of sodium restriction in pregnancy epidemiology, prevention, and treatment.
- Midwives commonly recommended sodium restriction during pregnancy.
Purpose:
- To evaluate the efficacy of dietary sodium restriction in preventing and treating hypertension of pregnancy.
- To assess the relationship between urinary sodium excretion and blood pressure changes during pregnancy.
- To identify potential adverse effects of sodium restriction on maternal health and nutrient intake.
Summary:
- Urinary sodium excretion did not correlate with blood pressure changes in pregnant individuals.
- Sodium restriction initiated in the third trimester did not decrease the incidence of pregnancy-induced hypertension.
- No therapeutic effect on blood pressure was observed in women with early hypertension symptoms who followed a sodium-restricted diet.
- Maternal side effects included reduced nutrient intake, decreased weight gain, lowered plasma volume, and hormonal system stimulation.
Impact:
- Provides evidence against the use of dietary sodium restriction for preventing or treating hypertension in pregnancy.
- Highlights potential risks and lack of benefits associated with this dietary intervention.
- Informs clinical practice and patient guidance regarding sodium intake during pregnancy.