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Do big studies show that eating lots of processed food links to deadly diseases?

Research question: What do large-scale longitudinal studies in OpenAlex indicate about the correlation between ultra-processed food consumption and chronic disease mortality?

The records show that most large cohorts link higher ultra-processed food intake to higher all-cause mortality. In the DRECE cohort, each 10% increase in energy from these foods was associated with a 15% higher hazard of all-cause mortality 14, and the Moli-Sani Study and two large US cohorts reported similar associations 91113. The picture is not uniform, since the Korean HEXA cohort found no association between total ultra-processed food intake and all-cause, cancer, or cardiovascular mortality 10, and cancer mortality was generally not associated across the reviewed studies 16. The evidence is generally low certainty, and associations do not prove causation 2932. The newest facts in the record are dated September 24, 2026, about a few weeks before October 2026 1820.

Checked 2026-10-19. Only documented and supported facts are used.
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Sources

[1] documented
In the DRECE cohort of a representative Spanish sample, each 10% increase in energy intake from ultra-processed food was associated with a 15% higher hazard of all-cause mortality.
"For every 10 % of the energy intake from UPF consumption, an increase of 15 % in the hazard of all-cause mortality was observed (HR 1·15; (95 % CI 1·03, 1·27); P -value = 0·012)."
Ultra-processed food intake and all-cause mortality: DRECE cohort study (2021)
[2] supported
Epidemiological studies have linked consumption of ultra-processed foods with obesity, cardiovascular disease, hypertension, metabolic syndrome, depression, and various types of cancer.
"Epidemiological studies have linked the consumption of ultra-processed foods with obesity, cardiovascular disease, hypertension, metabolic syndrome , depression, and various types of cancer."
Nova classification
[3] supported
Epidemiological data suggest that ultra-processed food consumption is associated with non-communicable diseases and obesity, but this has not yet been confirmed by randomized controlled trials.
"Epidemiological data suggest that consumption of ultra-processed foods is associated with non-communicable diseases and obesity , but this has not been confirmed by RCTs yet."
Ultra-processed food
[4] documented
The DRECE study found that higher ultra-processed food consumption was associated with higher all-cause mortality risk in a representative sample of the Spanish population.
"An increase in UPF consumption was associated with higher risk of all-cause mortality in a representative sample of the Spanish population."
Ultra-processed food intake and all-cause mortality: DRECE cohort study (2021)
[5] supported
Critics say research on ultra-processed foods often conflates processing with other dietary factors or inadequately assesses diets, which weakens conclusions about processing itself.
"Research on ultra-processed foods often conflate processing with other dietary factors or inadequately assess diets."
Nova classification
[6] supported
A 2024 meta-analysis published in The BMJ identified 32 studies linking ultra-processed foods to negative health outcomes, while noting possible heterogeneity among subgroups of UPF.
"A 2024 meta-analysis published in The BMJ identified 32 studies linking ultra-processed foods (UPFs) to negative health outcomes, though it also noted possible heterogeneity among sub-groups of UPF."
Ultra-processed food
[7] documented
In the DRECE cohort, replacing ultra-processed foods with unprocessed or minimally processed foods was associated with a 14% reduction (by energy) and 6% reduction (by grams) in all-cause mortality.
"However, when UPF were replaced by unprocessed or minimally processed foods, an inverse pattern was observed. A reduction of 14 % (in percentage of energy) and 6 % (in g) in all-cause mortality was estimated ( P -value = 0·018 and P -value = 0·002, respectively)"
Ultra-processed food intake and all-cause mortality: DRECE cohort study (2021)
[8] supported
A 2023 review indicated that a 10% increase in ultra-processed food consumption is linked to an increased risk of various cancers, including colorectal, breast, and pancreatic cancer.
"A 2023 review indicated that people who consume 10% more ultra-processed foods have an increased risk of various cancers, including colorectal , breast , and pancreatic cancer ."
Ultra-processed food
[9] supported
The Moli-Sani Study reported that ultra-processed food consumption was associated with increased risk of both all-cause and cardiovascular mortality.
"Ultra-processed food consumption is associated with increased risk of all-cause and cardiovascular mortality in the Moli-Sani Study"
Ultra-processed food intake and all-cause mortality: DRECE cohort study (2021)
[10] documented
In the Korean HEXA cohort, total ultra-processed food intake was not associated with all-cause, cancer, or cardiovascular disease mortality when comparing the highest and lowest quartiles.
"There was no evidence of an association of UPF intake with all-cause, cancer or CVD mortality comparing the highest with the lowest quartiles of UPF intake"
The intake of ultra-processed foods, all-cause, cancer and cardiovascular mortality in the Korean Genome and Epidemiology Study-Health Examinees (KoGES-HEXA) cohort (2023)
[11] documented
In two large US cohorts of nurses and health professionals with over 48,000 deaths over three decades, higher UPF intake was modestly associated with increased all-cause and non-cancer, non-cardiovascular mortality.
"In two large US cohorts comprising female nurses and male health professionals with more than 48,000 deaths documented over three decades, higher UPF intake was modestly associated with increased all-cause and non-cancer, non-cardiovascular mortality, particularly for processed meat products, sweetened beverages, dairy-based desserts, and ultra-processed breakfast foods ( 16 )."
Frontiers
[12] documented
Ultra-processed red meat and fish, along with milk and soymilk drinks in men, were positively associated with all-cause mortality, while total ultra-processed food intake showed no such association.
"We found no evidence of an association between total UPF intake and all-cause, cancer or CVD mortality, but ultra-processed red meat and fish in both sexes, and milk and soymilk drinks in men were positively associated with all-cause mortality."
The intake of ultra-processed foods, all-cause, cancer and cardiovascular mortality in the Korean Genome and Epidemiology Study-Health Examinees (KoGES-HEXA) cohort (2023)
[13] supported
A cohort of 38,148 US adults found that higher UPF intake was linked to increased all-cause and cardiovascular disease mortality.
"A cohort study including 38,148 US adults similarly found that higher UPF intake was linked to increased mortality of all-cause and cardiovascular disease ( 17 )."
Frontiers
[14] documented
High consumption of ultra-processed red meat and fish increased the risk of all-cause mortality in both men and women, with a hazard ratio of 1.26 in men.
"the risk of all-cause mortality increased in both men and women with high consumption of ultra-processed red meat and fish (men, HR 1.26, 95% CI 1.11–1.43)"
The intake of ultra-processed foods, all-cause, cancer and cardiovascular mortality in the Korean Genome and Epidemiology Study-Health Examinees (KoGES-HEXA) cohort (2023)
[15] supported
A large multinational prospective cohort of 428,728 participants found positive correlations between UPF consumption and all-cause, circulatory, and digestive system disease mortality.
"Besides, a large multinational prospective cohort involving 428,728 participants likewise found positive correlations between UPF consumption and mortality of all-cause, as well as circulatory and digestive system diseases mortality ( 18 )."
Frontiers
[16] supported
Across the studies reviewed, UPF consumption was generally not associated with cancer mortality, while it was linked to all-cause, cardiovascular, and respiratory mortality.
"Among existing cohort studies, two different cohorts both reported that UPF consumption was positively linked to all-cause, cardiovascular, and respiratory mortality, but showed no association with cancer mortality ( 9 , 15 )."
Frontiers
[17] documented
In the PLCO cohort of 86,221 participants over a median 17-year follow-up, the highest UPF intake quarter had a 10% higher all-cause mortality risk and a 9% higher circulatory system disease mortality risk than the lowest quarter.
"the highest UPF intake quarter, relative to the lowest, was associated with a 10% higher risk of all-cause mortality (HR: 1.10, 95% CI: 1.06–1.14), a 9% higher risk of circulatory system diseases mortality (HR: 1.09, 95% CI: 1.02–1.17)"
Frontiers
[18] supported
A review of over 50 studies covering nearly 9 million adults found that consuming higher amounts of ultra-processed foods was associated with increased risk of heart disease, strokes, obesity, diabetes, depression and anxiety, digestive issues and cancer.
"Researchers found that consuming higher amounts of ultra-processed foods was associated with an increased risk of heart disease, strokes, obesity, diabetes, depression and anxiety, digestive issues and cancer."
Eating more ultra-processed foods linked to worse health, study finds - ABC News
[19] supported
The review states that high ultraprocessed food intake is associated with a higher risk of chronic kidney disease. It does not address mortality or cite large-scale longitudinal studies.
"A high UPF intake is associated with higher risk for CKD."
Ultraprocessed foods and chronic kidney disease—double trouble (2023)
[20] supported
Cardiovascular disease, the leading cause of death in the United States, was found to increase by 24% after consuming higher amounts of ultra-processed foods.
"The risk of cardiovascular disease, which is the leading cause of death in the United States, was found to increase by 24% after consuming higher amounts of ultra-processed foods."
Eating more ultra-processed foods linked to worse health, study finds - ABC News
[21] documented
Greater consumption of ultra-processed foods was associated with higher all-cause mortality in the Adventist Health Study-2 cohort.
"Greater consumption of ultra-processed foods was associated with higher all-cause mortality in this health-conscious Adventist population with many vegetarians."
Ultra-processed food intake and animal-based food intake and mortality in the Adventist Health Study-2 (2022)
[22] supported
The study reported an 18 percent higher risk of death from any cause associated with ultra-processed food consumption.
"Death from any cause (18 percent higher risk)"
Common Type of Food Linked to Early Death in Study of 8.8 Million‌ - Newsweek
[23] supported
Each additional 100 grams a day of ultra-processed food intake was linked to a 14% higher heart risk and an 11% higher blood pressure risk.
"Each additional 100 grams a day was linked to a 14% higher heart risk and an 11% higher blood pressure risk."
Eating more ultra-processed foods linked to worse health, study finds - ABC News
[24] documented
Comparing the 90th with the 10th percentile of ultra-processed food share of dietary energy (47.7% vs 12.1%), the adjusted hazard ratio for mortality was 1.14.
"The HR for the 90th compared with the 10th percentile of consumption (comparing 47.7% with 12.1% dietary energy) in a continuous linear model was 1.14 (95% CI: 1.08, 1.21)."
Ultra-processed food intake and animal-based food intake and mortality in the Adventist Health Study-2 (2022)
[25] supported
Vadiveloo said the findings are largely consistent with earlier prospective cohorts and meta-analyses showing an adverse link between total ultra-processed food intake and multiple health outcomes.
"The findings are "largely consistent with prior prospective cohorts and meta analyses which show an adverse association between total ultra-processed food intake and multiple health outcomes," Vadiveloo said."
Common Type of Food Linked to Early Death in Study of 8.8 Million‌ - Newsweek
[26] supported
Higher ultra-processed food consumption was linked to a 24% increased risk of diabetes and a 23% increased risk of obesity.
"with the risk of diabetes increasing 24% and the risk of obesity increasing 23%."
Eating more ultra-processed foods linked to worse health, study finds - ABC News
[27] supported
In a prospective cohort study of renal cell carcinoma (Li et al., 2024), participants in the highest quartile of ultra-processed food consumption had 1.64 times the risk of renal cell carcinoma mortality compared with those who consumed the least.
"Os participantes que estavam no quartil mais alto de consumo de alimentos ultraprocessados apresentaram um risco de 1,42 vezes maior de incidência de CCR e um risco 1,64 vezes maior de mortalidade por CCR em comparação aos que consumiram a menor quantidade."
Câncer e alimentos ultraprocessados: o que revelam as evidências atuais? (2025)
[28] documented
The association between ultra-processed food and mortality appeared stronger among people who already had chronic diseases at baseline.
"The association of ultra-processed food with mortality appeared stronger among those with chronic diseases at baseline, suggesting the potential for greater impact among those with higher mortality risk."
Ultra-processed food intake and animal-based food intake and mortality in the Adventist Health Study-2 (2022)
[29] supported
Vadiveloo cautioned that the supporting evidence is of generally low certainty, partly due to heterogeneity within the ultra-processed food category and limitations in diet assessment.
""generally low evidence certainty, much of it due to heterogeneity within the ultra-processed food category and limitations with diet assessment.""
Common Type of Food Linked to Early Death in Study of 8.8 Million‌ - Newsweek
[30] supported
Higher ultra-processed food consumption was associated with a greater risk of multimorbidity combining cancer and cardiometabolic diseases in a multinational cohort study (Cordova et al., 2023).
"O maior consumo de alimentos ultraprocessados (AUPs) foi associado a um maior risco de multimorbidade de câncer e doenças cardiometabólicas."
Câncer e alimentos ultraprocessados: o que revelam as evidências atuais? (2025)
[31] supported
Other cohorts have also reported an association between ultra-processed foods and all-cause mortality, and this study is described as one of the largest examinations of the link to date.
"Other cohorts have demonstrated an association between ultra-processed foods and all-cause mortality ( 12–15 ), and the current findings (from one of the largest examinations of this association to date) add to this evidence."
Ultra-processed food intake and animal-based food intake and mortality in the Adventist Health Study-2 (2022)
[32] supported
The researchers stressed that the findings show associations between ultra-processed food consumption and health risks but do not prove that the food group causes these conditions.
"However, the researchers emphasized the findings show associations between the mentioned health risks and ultra-processed food consumption, but do not prove the food group causes the conditions."
Common Type of Food Linked to Early Death in Study of 8.8 Million‌ - Newsweek
[33] supported
For lung cancer mortality, the association with ultra-processed food consumption was not significant in initial analyses, but after multiple imputations participants with the highest intake had a 16% higher lung cancer risk.
"Embora a relação entre AUPs e mortalidade por câncer de pulmão não tenha sido significativa nas análises iniciais, foi observado um aumento de 16% no risco de câncer de pulmão entre os participantes com o maior consumo de AUPs após múltiplas imputações."
Câncer e alimentos ultraprocessados: o que revelam as evidências atuais? (2025)