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January 11, 2018 by tomadmin Leave a Comment

Eating Apples and Tomatoes Repairs Lung Function

A study from Johns Hopkins reports that lung function in former smokers eating a diet high in tomatoes and fruits is significantly better, compared to their peers, suggesting that certain components in these foods may aid in reversing some of the lung damage caused by smoking.

The researchers found that adults who on average ate more than two tomatoes or more than three portions of fresh fruit (especially apples) a day had a slower decline in lung function compared to those who ate less than one tomato or less than one portion of fruit a day, respectively.
The researchers inquired about other dietary sources such as dishes and processed foods containing fruits and vegetables (e.g. tomato sauce) but the protective effect was only observed in fresh fruit and vegetables.
The paper also found a slower decline in lung function among all adults, including those who had never smoked or had stopped smoking, with the highest tomato consumption.
Poor lung function has been linked with mortality risks from all diseases, including chronic obstructive pulmonary disease (COPD), heart disease, and lung cancer. The findings are published in the December issue of the European Respiratory Journal.
“This study shows that diet might help repair lung damage in people who have stopped smoking. It also suggests that a diet rich in fruits can slow down the lung’s natural aging process even if you have never smoked,” according to Vanessa Garcia-Larsen, assistant professor in the Bloomberg School’s Department of International Health and the study’s lead author.
“The findings support the need for dietary recommendations, especially for people at risk of developing respiratory diseases such as COPD.”
For the study, the research team assessed diet and lung function of more than 650 adults in 2002, and then repeated lung function tests on the same group of participants 10 years later. Participants from three European countries – Germany, Norway and the United Kingdom – completed questionnaires assessing their diets and overall nutritional intake. They also underwent spirometry, a procedure that measures the capacity of lungs to take in oxygen.
The test collects two standard measurements of lung function: Forced Exhaled Volume in one second (FEV1), which measures how much air a person can expel from their lungs in one second; and (FVC), the total amount of air a person can inhale in six seconds. The study controlled for factors such as age, height, sex, body mass index (an indicator of obesity), socio-economic status, physical activity and total energy intake.
Among former smokers, the diet-lung-function connection was even more striking. Ex-smokers who ate a diet high in tomatoes and fruits had around 80 ml slower decline over the 10-year period. This suggests that nutrients in their diets are helping to repair damage done by smoking.
”Lung function starts to decline at around age 30 at variable speed depending on the general and specific health of individuals,” explains Garcia-Larsen “Our study suggests that eating more fruits on a regular basis can help attenuate the decline as people age, and might even help repair damage caused by smoking. Diet could become one way of combating rising diagnosis of COPD around the world.”
Source: ??Johns Hopkins University Bloomberg School of Public Health, “Dietary antioxidants and 10-year lung function decline in adults from the ECRHS survey” was written by Vanessa Garcia-Larsen, James F. Potts, Ernst Omenaas, Joachim Heinrich, Cecilie Svanes, Judith Garcia-Aymerich, Peter G. Burney, and Deborah L. Jarvis.

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