Here’s a startling fact: a mother’s eating disorder could significantly impact her child’s respiratory health, increasing the risk of asthma and wheezing. But here’s where it gets even more concerning—this risk persists regardless of whether the mother also experiences depression or anxiety, or when the eating disorder occurs relative to pregnancy. Research published in the journal Thorax sheds light on this often-overlooked connection, urging healthcare providers to rethink how they support pregnant women with eating disorders.
While studies have long explored how maternal mental health—like depression, anxiety, and stress—affects children’s respiratory health, eating disorders have largely been left out of the conversation. And this is the part most people miss: the evidence linking maternal eating disorders to children’s cognitive, social, and emotional development is robust, but their impact on physical health, particularly respiratory outcomes, has been less clear—until now.
To fill this gap, researchers analyzed data from 131,495 mother-child pairs across 7 European birth cohorts in the EU Child Cohort Network (EUCCN). They examined whether maternal eating disorders before pregnancy were linked to preschool wheezing and school-age asthma in children. The team also investigated whether these risks differed based on the type of eating disorder (anorexia or bulimia) and the timing of exposure (before, during, or after pregnancy).
The findings? Maternal eating disorders were associated with a 25% higher risk of preschool wheezing and a 26% higher risk of school-age asthma. Interestingly, while these risks dipped slightly when excluding mothers with depression or anxiety, the connection remained significant. Both anorexia and bulimia were linked to childhood asthma, though preschool wheezing was tied only to bulimia. But here’s the controversial part: while the timing of exposure mattered somewhat, no specific period—before, during, or after pregnancy—stood out as the most critical.
This study is observational, so it can’t prove cause and effect. Plus, the prevalence of eating and respiratory disorders varied widely across the cohorts, which might make comparisons tricky. Still, the researchers note that the overall trends were consistent. But what’s really puzzling is the underlying mechanism. How exactly does a mother’s eating disorder influence her child’s respiratory health? The researchers suggest that mental health issues and associated stress might disrupt the baby’s lung development and immune system maturation, making them more susceptible to conditions like asthma.
They also point out that children born to mothers with eating disorders often face risks like fetal growth restriction, premature birth, and low birth weight—all known contributors to respiratory problems. Additionally, both mental health disorders and asthma involve immune and inflammatory dysregulation, hinting at a shared genetic or biological pathway. But here’s the question that sparks debate: Could addressing maternal eating disorders early on not only improve mental health but also reduce respiratory risks in children?
The researchers conclude that maternal eating disorders need to be a priority in studies on early-life respiratory risks. They also advocate for integrating eating disorder screening and support into prenatal and postnatal care. What do you think? Is this a connection we’ve been overlooking for too long? Share your thoughts in the comments—let’s keep the conversation going.
