Healthy eating may be a key player in COPD risk reduction

In a recent review published in BMC Public Overall health, scientists investigated the affiliation among diet quality calculated by the Balanced Consuming Index-2010 (HEI-2010) rating and the odds of Long-term obstructive pulmonary illness (COPD) in the Iranian inhabitants.

Study: The association between diet quality and chronic obstructive pulmonary disease: a case-control study. Image Credit: ME Image/Shutterstock.comResearch: The affiliation concerning food plan high quality and chronic obstructive pulmonary illness: a case-handle examine. Impression Credit rating: ME Picture/


COPD is a urgent world wellbeing problem, rating as the third foremost bring about of loss of life as per Earth Wellness Corporation (WHO). Principally joined to cigarette smoking and elements like growing old, the prevalence of COPD is on the rise, with a worldwide typical charge of 13.1%, but variants exist throughout international locations.

Troubles like pneumonia, lung most cancers, and cardiovascular conditions normally accompany COPD, rising financial burdens, as seen in the United States of America’s (USA’s) bounce from $32.1 billion in 2010 to $49 billion in 2020. Study implies that, in addition to smoking, diet plans loaded in fiber, fruits, and fish noticeably effects COPD incidence.

While the HEI assesses food plan quality and is linked to circumstances like obesity and diabetes, its link to COPD is uncharted.

Offered various regional nutritional practices, nutritional shifts in producing nations around the world, and numerous COPD-contributing components globally, more exploration is essential for a holistic comprehension of the food plan-COPD romantic relationship in diversified contexts.

About the study 

In the existing circumstance-handle review at Al-Zahra College Healthcare facility in Isfahan, Iran, from 2015 to 2016, researchers examined the connection in between food plan and COPD. Using calculations that accounted for several elements, they established a sample of 84 circumstances with COPD and 252 controls with no the sickness.

Choice of the COPD cases was done randomly from the medical center database, guaranteeing minimal bias. Patients above 30 with a pulmonologist’s analysis of COPD based on particular spirometry examination outcomes have been provided. Controls, matched by age and sex to the situations, ended up sourced from the similar hospital’s outpatient clinics.

To make certain data precision, numerous exclusions had been used to opportunity participants dependent on numerous overall health ailments.

Using a 168-product food frequency questionnaire (FFQ), nutritional intakes around the previous year were being assessed and then translated into daily intake quantities to compute nutrient intakes working with precise program. The HEI-2010 was used as a nutritional evaluation metric, which utilizes different meals groups to consider eating plan high-quality.

Spirometry testing by a trained technician evaluated pulmonary purpose. Additional data on socio-demographic facts, actual physical measurements, and lifestyle behaviors were being also collected.

Smoking behaviors had been documented by means of a distinct questionnaire. The facts were statistically analyzed with substantial benefits marked at p < 0.05.

Study results 

Several observations were made in the present study, evaluating the characteristics and dietary habits of cases and controls. The study revealed that cases frequently had a history of pulmonary conditions and were less inclined towards physical activity, education, and employment.

Additionally, they were less often married and less commonly owned cars or homes. When assessing smoking behaviors, the cases were more frequently active or passive smokers, water pipe users, or even non-smokers. On the other hand, controls showed a higher likelihood of being ex-smokers.

When examining the distribution of participants based on the HEI-2010 score quartiles, a nutritional assessment tool, it was observed that control participants in the highest quartiles tended to be older, employed, physically active, and more likely to own a car or home compared to those in the lowest quartile.

For the cases, those in the top HEI-2010 quartile were less often married but were better educated and owned cars or homes more often than those in the lowest quartile.

Regarding smoking, cases in the top HEI-2010 quartile were more frequent smokers but less likely to be non-smokers, whereas controls in this quartile were less likely to smoke or use water pipes and more likely to be non-smokers, also known as passive smokers.

The study illustrated that cases commonly experienced severe disease symptoms, including phlegm and cough, as anticipated. Controls, in contrast, often had a better lung function, evidenced by higher Forced Expiratory Volume in 1 second (FEV1) predicted value, Forced Vital Capacity (FVC), and FEV1/FVC ratio.

Differences in dietary intake between cases and controls were noted across HEI-2010 score quartiles, with cases generally consuming more energy, carbohydrates, and vitamin A. Specific food group consumptions showed cases ate more dairy and empty calories but less seafood, plant proteins and whole grains.

A deeper dive into these dietary differences revealed that cases in the top HEI-2010 quartile had increased intakes of various nutrients, including carbohydrates, energy, protein, fiber, fats, riboflavin, calcium, and several vitamins, as well as higher consumption of certain food groups. Similarly, controls in this quartile had increased intake of several nutrients and food groups.

The present study also focused on COPD cases, highlighting a noteworthy observation: severe COPD patients had a higher HEI-2010 score and consumed more whole grains than those with milder COPD.

Lastly, logistic regression findings demonstrated a significant association between adherence to HEI-2010 recommendations and a decreased likelihood of having COPD. Individuals with higher compliance to these dietary guidelines had substantially reduced odds of COPD.

Even after adjusting for potential confounding factors like smoking, physical activity, and BMI, this strong association persisted.