Childhood Asthma Linked to Certain Fatty Foods
The study identifies saturated long-chain fatty acids as triggers for neutrophilic asthma, independent of obesity, suggesting dietary changes could improve management of this severe asthma type in children.
- Researchers at Children’s Hospital of Philadelphia reported on August 27, 2025, that certain fats in obesity-linked foods cause asthma-like lung inflammation in children.
- The study began after noticing neutrophilic asthma in non-obese children and found that diets with specific saturated long chain fatty acids trigger this asthma independent of obesity.
- The research showed that stearic acid, often in animal fat and processed foods, accumulates in lung macrophages and worsens airway inflammation, while oleic acid suppresses inflammation.
- Before this research, it was widely believed that childhood obesity contributed to this type of asthma; additionally, the study found that inhibiting specific inflammatory proteins helped prevent lung inflammation triggered by stearic acid.
- These findings, published in Science Translational Medicine, suggest dietary changes and repurposing certain drugs may help prevent and treat this difficult-to-treat asthma subtype in children.
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Ask Dr. Nandi: Could fatty foods be causing a form of asthma in kids?
In todays Health Alert, a new study suggests the fatty foods kids eat may play a surprising role in a severe form of asthma.Asthma is very common in children. This study looked at a type called neutrophilic asthma, which has been linked to childhood obesity. But that may change.What the researchers did was focus on certain fatty acids. One fat in particular, called stearic acid, is a saturated fat found in animal products like beef and dairy, an…

Fatty Foods Might Contribute To Childhood Asthma
Key Takeaways
Certain dietary fats linked to more severe, hard-to-treat asthma in children
Researchers at Children's Hospital of Philadelphia (CHOP) have found that certain lipids (fats) in obesity-causing foods also cause asthma-like lung inflammation. The findings suggest that in addition to modifying dietary choices, certain existing drugs could be repurposed to help treat this type of asthma.
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