Protein or calorie supplementation have no effect on preeclampsia rates, and dietary protein restriction does not appear to increase preeclampsia rates. Further, there is no evidence that changing salt intake has an effect.

Supplementation with antioxidants such as vitamin C and E has no effect on preeclampsia incidence, nor does supplementation with vitamin D. Therefore, supplementation with vitamins C, E, and D is not recommended.

Calcium supplementation of at least 1 gram per day is recommended during pregnancy as it prevents preeclampsia where dietary calcium intake is low, especially for those at high risk. Low selenium status is associated with higher incidence of preeclampsia.

Diagnosis
Diet
Research
Pathogenesis