Adherence to different forms of plant‐based diets and pregnancy outcomes in the Danish National Birth Cohort: A prospective observational study
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2024
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| author | Signe Hedegaard Ellen Aagaard Nohr Sjurdur Frodi Olsen Thorhallur Ingvi Halldorsson Kristina Martha Renault |
| author_facet | Signe Hedegaard Ellen Aagaard Nohr Sjurdur Frodi Olsen Thorhallur Ingvi Halldorsson Kristina Martha Renault Signe Hedegaard Ellen Aagaard Nohr Sjurdur Frodi Olsen Thorhallur Ingvi Halldorsson Kristina Martha Renault |
| collection | Wiley Open Access |
| contents | Adherence to different forms of plant‐based diets and pregnancy outcomes in the Danish National Birth Cohort: A prospective observational study Signe Hedegaard Ellen Aagaard Nohr Sjurdur Frodi Olsen Thorhallur Ingvi Halldorsson Kristina Martha Renault Acta Obstetricia et Gynecologica Scandinavica AbstractIntroductionThe number of people adhering to plant‐based diets has been increasing dramatically in recent years, fueled by both environmental and animal welfare concerns. Beneficial or possible adverse consequences of such diets, particularly the most restrictive forms during pregnancy, have been minimally explored. The aim of this prospective observational study was to examine associations between different forms of plant‐based diets during pregnancy with birth outcomes and pregnancy complications.Material and methodsThe Danish National Birth Cohort included 100 413 pregnancies to 91 381 women in 1996–2002. The population consisted of 66 738 pregnancies, about which sufficient dietary data were available and included in the study. Dietary and supplemental intake was assessed by Food Frequency Questionnaire in gestational week 25 and women were characterized as fish/poultry‐vegetarians, lacto/ovo‐vegetarians, vegans or omnivorous, based on their self‐report in gestational week 30. Main outcome measures were pregnancy and birth complications, birthweight and small for gestational age.ResultsA total of 98.7% (n = 65 872) of participants were defined as omnivorous, whereas 1.0% (n = 666), 0.3% (n = 183) and 0.03% (n = 18) identified themselves as fish/poultry vegetarians, lacto/ovo‐vegetarians or vegans, respectively. Protein intake was lower among lacto/ovo‐vegetarians (13.3%) and vegans (10.4%) than among omnivorous participants (15.4%). Intake of micronutrients was also considerably lower among vegans, but when dietary supplements were taken into consideration, no major differences were observed. Compared with omnivorous mothers, vegans had a higher prevalence of preeclampsia and their offspring had on average −240 g (95% confidence interval −450 to −30) lower birthweight.ConclusionsThe women reporting that they adhered to vegan diets during pregnancy had offspring with lower mean birthweight and higher risk of preeclampsia compared with omnivorous mothers. Low protein intake might be one plausible explanation for the observed association with birthweight. 10.1111/aogs.14778 http://creativecommons.org/licenses/by-nc-nd/4.0/ |
| doi_str_mv | 10.1111/aogs.14778 |
| format | Artículo Open Access |
| id | wiley_oa_10_1111_aogs_14778 |
| institution | Wiley Open Access |
| license_str_mv | http://creativecommons.org/licenses/by-nc-nd/4.0/ |
| publishDate | 2024 |
| publisher | Wiley |
| record_format | wiley_oa |
| spellingShingle | Adherence to different forms of plant‐based diets and pregnancy outcomes in the Danish National Birth Cohort: A prospective observational study Signe Hedegaard Ellen Aagaard Nohr Sjurdur Frodi Olsen Thorhallur Ingvi Halldorsson Kristina Martha Renault Acta Obstetricia et Gynecologica Scandinavica Adherence to different forms of plant‐based diets and pregnancy outcomes in the Danish National Birth Cohort: A prospective observational study Signe Hedegaard Ellen Aagaard Nohr Sjurdur Frodi Olsen Thorhallur Ingvi Halldorsson Kristina Martha Renault Acta Obstetricia et Gynecologica Scandinavica AbstractIntroductionThe number of people adhering to plant‐based diets has been increasing dramatically in recent years, fueled by both environmental and animal welfare concerns. Beneficial or possible adverse consequences of such diets, particularly the most restrictive forms during pregnancy, have been minimally explored. The aim of this prospective observational study was to examine associations between different forms of plant‐based diets during pregnancy with birth outcomes and pregnancy complications.Material and methodsThe Danish National Birth Cohort included 100 413 pregnancies to 91 381 women in 1996–2002. The population consisted of 66 738 pregnancies, about which sufficient dietary data were available and included in the study. Dietary and supplemental intake was assessed by Food Frequency Questionnaire in gestational week 25 and women were characterized as fish/poultry‐vegetarians, lacto/ovo‐vegetarians, vegans or omnivorous, based on their self‐report in gestational week 30. Main outcome measures were pregnancy and birth complications, birthweight and small for gestational age.ResultsA total of 98.7% (n = 65 872) of participants were defined as omnivorous, whereas 1.0% (n = 666), 0.3% (n = 183) and 0.03% (n = 18) identified themselves as fish/poultry vegetarians, lacto/ovo‐vegetarians or vegans, respectively. Protein intake was lower among lacto/ovo‐vegetarians (13.3%) and vegans (10.4%) than among omnivorous participants (15.4%). Intake of micronutrients was also considerably lower among vegans, but when dietary supplements were taken into consideration, no major differences were observed. Compared with omnivorous mothers, vegans had a higher prevalence of preeclampsia and their offspring had on average −240 g (95% confidence interval −450 to −30) lower birthweight.ConclusionsThe women reporting that they adhered to vegan diets during pregnancy had offspring with lower mean birthweight and higher risk of preeclampsia compared with omnivorous mothers. Low protein intake might be one plausible explanation for the observed association with birthweight. 10.1111/aogs.14778 http://creativecommons.org/licenses/by-nc-nd/4.0/ |
| title | Adherence to different forms of plant‐based diets and pregnancy outcomes in the Danish National Birth Cohort: A prospective observational study |
| topic | Acta Obstetricia et Gynecologica Scandinavica |
| url | https://obgyn.onlinelibrary.wiley.com/doi/10.1111/aogs.14778 |