Diet and Respiratory Infections: Specific or Generalized Associations?

Area of Science:

• Nutritional Epidemiology
• Respiratory Medicine
• Public Health

Background:

• Investigated dietary links to COVID-19 in UK Biobank (UKB) cohort.
• Examined if these dietary associations extend to other respiratory infections beyond COVID-19.

Purpose of the Study:

• To determine the association between specific dietary behaviors and the risk of pneumonia and influenza.
• To explore if dietary associations with COVID-19 are specific or apply to other respiratory infections.

Main Methods:

• Utilized UK Biobank data, linking diagnoses of pneumonia and influenza to self-reported dietary habits (2006-2010).
• Employed logistic regression to analyze odds of pneumonia/influenza, adjusting for confounders.
• Assessed effect modification by sex and genetic factors.

Main Results:

• Higher intake of coffee, tea, oily fish, and fruit correlated with reduced pneumonia risk.
• Increased red meat consumption was linked to a higher risk of pneumonia.
• Associations for influenza were observed with tea and oily fish, and fruit intake showed a stronger link to pneumonia risk in women.

Conclusions:

• Coffee, tea, oily fish, and fruit consumption show favorable associations with pneumonia and influenza risk.
• Red meat consumption is adversely associated with pneumonia and influenza risk.
• Findings for coffee align with previous COVID-19 research, while other associations are specific to common respiratory infections.