DASH review leaves prevention of pregnancy hypertension uncertain
Pooled evidence did not show a statistically significant reduction in gestational hypertension or preeclampsia; neither result establishes that the diet has no effect.
Based on the published abstract. The full paper may contain additional methods, results and limitations.
The 30-second takeaway
This review did not establish that following the DASH dietary pattern during pregnancy lowers the risk of gestational hypertension. A separate preeclampsia analysis also remained statistically inconclusive. The findings leave room for uncertainty in either direction, and the abstract provides too little detail about the included study designs to make strong causal claims.
The evidence came from a limited study set. This abstract-based account lacks the individual study designs, comparison diets and follow-up details needed to judge how comparable the studies were.
Separate pregnancy outcomes
The main analysis addressed gestational hypertension, while a subgroup analysis addressed preeclampsia. Both results were statistically inconclusive, so the preeclampsia estimate should not be used to claim established protection for pregnancy-related hypertension overall.
Interpreting the uncertainty
The uncertainty interval around the main relative-risk estimate included values consistent with lower or higher risk. A nonsignificant result leaves those possibilities unresolved; it does not demonstrate that the compared dietary patterns are equivalent.
The original publication
The Effect of the DASH Diet on the Development of Gestational Hypertension in Pregnant Women: A Systematic Review and Meta-Analysis.
Alatsis A, Xixi NA, Sokou R et al.
Nutrients · 2026
- PubMed ID
- 41599881
- Record checked
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