Corrigendum Issued for IMPACT BCN Trial Subanalysis on Pregnancy Diet, Mindfulness, and Maternal Microbiota
A formal correction notice has been issued for the 2025 IMPACT BCN trial subanalysis examining Mediterranean diet and Mindfulness-Based Stress Reduction effects on maternal microbiota during pregnancy.
Summary
This record is a corrigendum (formal correction notice) published June 2026 in the American Journal of Clinical Nutrition for an October 2025 subanalysis of the IMPACT BCN randomized trial. The original paper examined how Mediterranean diet and Mindfulness-Based Stress Reduction (MBSR) interventions during pregnancy affected maternal gut and vaginal microbiota. The corrigendum abstract itself does not specify what was corrected or whether any findings were affected; readers must consult the full corrigendum text and the corrected original article for substantive details. No new results or data are reported in this publication.
Detailed Summary
This publication is a corrigendum — a formal correction notice — to a subanalysis of the IMPACT BCN (Improving Mothers for a better PrenAtal Care Trial BarCeloNa) trial originally published in the American Journal of Clinical Nutrition in October 2025. The original paper examined whether a Mediterranean diet intervention or a Mindfulness-Based Stress Reduction (MBSR) program during pregnancy altered maternal gut and vaginal microbiota.
Importantly, the corrigendum abstract available here does not describe the nature of the corrections, which sections or data were affected, or whether any conclusions changed. Corrigenda in biomedical journals can range from minor authorship or typographical fixes to substantive data or statistical corrections, and no inference about severity should be drawn without consulting the full corrigendum text.
The underlying research topic — how modifiable prenatal lifestyle factors shape the maternal microbiome — is of broad interest, as maternal microbial communities during pregnancy have been associated with birth outcomes, infant microbiome seeding, and downstream immune and metabolic programming. However, the specific findings of the original IMPACT BCN subanalysis cannot be summarized from this corrigendum record alone.
For clinicians and researchers, the appropriate action is to consult the corrected version of the original article (Am J Clin Nutr. 2025 Oct;122(4):1121-1133) together with this corrigendum to ensure accurate citation and interpretation. This summary is based solely on the corrigendum's bibliographic record and should not be read as reporting trial results.
Key Findings
- This record is a corrigendum (correction notice), not a new research study; it reports no primary data or results.
- It corrects an October 2025 subanalysis of the IMPACT BCN randomized trial published in the American Journal of Clinical Nutrition.
- The original paper examined effects of Mediterranean diet and Mindfulness-Based Stress Reduction during pregnancy on maternal gut and vaginal microbiota.
- The corrigendum abstract does not specify what was corrected or whether the original conclusions were affected.
- Readers should consult both the corrigendum and the corrected original article for substantive details.
Methodology
No methodology is described in this corrigendum record. The underlying paper being corrected is described as a subanalysis of the IMPACT BCN randomized controlled trial conducted in Barcelona, but design details cannot be verified from the corrigendum abstract alone.
Study Limitations
This summary is based solely on the corrigendum's bibliographic record, which does not disclose what corrections were made or whether they alter the original conclusions. No primary findings, sample size, statistical results, or methodological details can be evaluated from this source.
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