Experts remind of the importance of vigilance against exposure to chemicals in daily food, especially in fresh ingredients such as vegetables, fruits, and grains. Although known as part of a healthy diet, these food ingredients still have the potential to be contaminated with substances such as pesticides if not handled properly.
Citing a report from Everyday Health, a recent study highlights the possible link between exposure to pesticides on fruits and vegetables and the risk of lung cancer, especially at a young age. The study was presented at the annual meeting of the American Association for Cancer Research.
This study is part of a young lung cancer epidemiology project involving 187 respondents under the age of 50 who have been diagnosed with lung cancer. Interestingly, most participants had no history of smoking and showed a different type of cancer than those commonly associated with the habit.
The researchers then analyzed the participants' diets using the Healthy Eating Index (HEI) and compared them to the average American diet.
The results showed that the patient group had an average HEI score of 65 out of 100, higher than the national average of 57. This means that in general they actually consume more fruits, vegetables, and whole grains than the general population.
The average patient consumed about 4.3 servings of dark green vegetables and nuts and 3.9 servings of whole grains every day. Meanwhile, the average adult in America only consumes 3.6 servings of vegetables and 2.6 servings of whole grains per day.
Oncologist and lead author of the study, Jorge Nieva, revealed that this finding opens up the possibility of a role for pesticides in the relationship between a healthy diet and the risk of lung cancer.
"Because pesticides are found in higher concentrations in the types of food consumed by our patient population," he said.
He also added that individuals working in the agricultural sector, especially those who are often exposed to pesticides such as sprayers, have a higher risk of lung cancer.
However, these findings are not necessarily considered the final conclusion. Epidemiologist from the University of Illinois at Chicago School of Public Health, Katrine Wallace, assessed that the results of the study are still considered preliminary evidence.
According to him, this study should be used as a basis for building hypotheses, not as a direct reference in changing people's consumption patterns. He also reminded that an inaccurate interpretation could cause misunderstanding and damage the existing healthy diet guidelines.
A similar view was expressed by Roberto Pili, who emphasized that the results of the study should be interpreted carefully. He said there was no strong evidence that patients were actually exposed to high levels of pesticides.
He added that further research with a larger sample size is essential to understand the relationship between pesticide exposure, consumption of agricultural products, and lung cancer risk.
"Regardless of whether the product is organic or conventional, washing should always be recommended to reduce contaminants such as chemicals and bacteria," he said.
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