Healthy Diet Scores Linked to Lower Asthma Odds
A new study indicates that better diet quality correlates with improved lung health and asthma control markers.
Updated on Oct. 13, 2026 in Asthma
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Researchers have found that adults with higher scores on the PURE Healthy Diet scale are less likely to suffer from asthma. The study revealed that diet quality is significantly lower among patients with physician-diagnosed asthma compared to healthy controls.
Why it matters
Understanding the link between dietary habits and respiratory health provides a potential non-pharmacological pathway for managing asthma. The findings suggest that improving nutrition may bolster asthma control and overall quality of life for patients.
The study observed an odds ratio of 0.89 for asthma per 1-point increase in the PURE Healthy Diet Score, which ranges from 0 to 24. Participants in the highest diet score quartile showed an odds ratio of 0.28 for asthma compared to the lowest quartile.
The details
Using a validated food frequency questionnaire, researchers assessed the diets of 200 adults with asthma and 200 healthy controls. The investigation linked higher diet scores to elevated results on the Asthma Control Test and the Asthma Quality of Life Questionnaire, alongside lower levels of gut-lung axis biomarkers like zonulin, LPS, and TMAO.
Timeline
October 13, 2026: Article publication date.
The Big Picture
This study advances the gut-lung axis research framework by providing quantitative evidence that diet-mediated biomarkers correlate with specific asthma clinical outcomes.
Patients may consider prioritizing the nutritional profiles identified in the PURE Healthy Diet scale to support their respiratory management. These findings offer a potential lifestyle-based approach to improve asthma control markers alongside standard medical treatments.
The takeaway
Adopting a diet that aligns with high PURE Healthy Diet scores may provide measurable benefits for asthma control and quality of life. Consult with a healthcare provider before making significant dietary changes to your existing asthma management plan.
Further reading
Explore more findings on respiratory health in our Asthma section.
More information
Review the full peer-reviewed research article for a complete analysis of the methodology.
Source note: This article includes information reported by Nature.
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