Ultra-Processed Foods May Raise Lung Cancer Risk by 41%, Study Finds
A major new observational study has revealed that frequent consumption of ultra-processed foods could increase the risk of lung cancer by up to 41%.
Study Tracked Over 100,000 U.S. Adults for 12 Years
Researchers analyzed dietary data from over 101,700 American adults over a period of 12 years. During this time, 1,706 individuals developed lung cancer.
The findings showed that participants who consumed the highest amounts of ultra-processed foods (UPFs) daily were 41% more likely to develop lung cancer, even after adjusting for smoking habits and overall diet quality.
What Are Ultra-Processed Foods?
The study defines ultra-processed foods as items that are heavily industrially modified and often contain artificial flavors, preservatives, high levels of salt, sugar, unhealthy fats, and chemical additives. Examples include:
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Sugary soft drinks
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Instant noodles
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Packaged snacks
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Frozen meals
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Processed meats
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Pizza and bakery items
These foods tend to be low in essential nutrients like fiber, vitamins, and antioxidants.
Experts Caution: It’s an Observational Study
While the results are alarming, experts note that this is an observational study, meaning it cannot confirm causation, only a strong correlation. Factors like lifestyle, income, and environment may also play a role.
Still, the consistency of these findings across global research is concerning. An Australian study cited in the report found that when 40% or more of daily calories came from ultra-processed foods, the risk of death from respiratory diseases increased by 26%.
Why High-Income Countries Should Pay Attention
Countries like the USA, UK, Canada, and Australia have some of the highest consumption rates of ultra-processed foods globally. This makes their populations particularly vulnerable to the long-term health effects highlighted in this research.
Public Health Message
Health professionals recommend reducing intake of ultra-processed foods and replacing them with whole grains, fresh fruits, vegetables, and lean proteins to improve overall health and potentially reduce cancer risk.
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