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Study Links Higher Ultra-Processed Food Intake to Heart Risk
Researchers studied how eating ultra-processed foods may relate to health problems.
These foods include sugary drinks, packaged snacks, some processed meats, and ready-to-eat meals.
They combined information from 51 studies involving more than 8.8 million adults.
People who ate more of these foods had a higher risk of heart problems.
An extra 100 grams per day was linked with a 14% higher risk of cardiovascular events.
The study does not mean that eating one packaged food will cause a heart attack.
Scientists cannot fully separate food choices from other lifestyle factors in these observational studies.
The advice is to make minimally processed foods the main part of meals and keep highly formulated foods high in salt, sugar, or unhealthy fats to a smaller share.
A meta-analysis of 51 prospective studies included 8,819,894 adults followed for two to 32 years.
Higher ultra-processed food intake was associated with a 24% greater cardiovascular-event risk than lower intake.
Each additional 100 grams of ultra-processed food daily was associated with a 14% higher cardiovascular-event risk.
The same increase was associated with higher risks of cancer, overall death, and metabolic syndrome or diabetes.
Researchers stressed that the findings show associations, not proof that ultra-processed food directly causes disease.
- Who
- Researchers who conducted a dose-response meta-analysis of 51 prospective cohort studies involving 8,819,894 adults.
- What
- The study examined links between ultra-processed food consumption and cardiovascular events, cancer, obesity or overweight, metabolic syndrome or diabetes, digestive diseases, depression or anxiety, and overall death.
- Where
- The included participants came from the Americas, Europe, Asia, and Oceania.
- When
- The studies were published up to April 2026, with participants followed for two to 32 years.
- Why
- The researchers sought to assess whether greater ultra-processed food consumption is associated with major chronic diseases.
Evidence of Dietary Risk
Caution About Causation
Meaning of the findings
Evidence of Dietary Risk
Higher ultra-processed food consumption was associated with greater cardiovascular, cancer, overall mortality, and metabolic risks, adding to previous research.
Caution About Causation
The studies cannot establish that ultra-processing itself caused the health risks, because food consumption often occurs alongside broader dietary and lifestyle patterns.
How to interpret 100 grams
Evidence of Dietary Risk
The dose-response analysis found that each additional 100 grams per day was associated with a 14% higher cardiovascular-event risk at the population level.
Caution About Causation
The 100-gram figure is a research measurement, not a daily limit or a sudden-risk threshold; it does not mean that eating exactly 100 grams of a particular food causes a heart attack.
Dietary advice
Evidence of Dietary Risk
Minimally processed and unprocessed foods should form the foundation of the diet, while highly formulated foods high in salt, added sugar, or unhealthy fats should be limited.
Caution About Causation
Not every packaged or processed food is unhealthy; foods such as pasteurised milk, frozen vegetables, canned beans, and whole-grain bread may be processed without having the same nutritional profile as highly formulated products.
Key facts
- Studies analyzed
- 51 prospective cohort studies
- Participants
- 8,819,894 adults
- Follow-up period
- Two to 32 years
- Cardiovascular association
- Every additional 100 grams of ultra-processed food per day was associated with a 14% higher cardiovascular-event risk.
- Other reported associations
- The same increase was associated with a 4% higher cancer risk, 3% higher risk of death from any cause, and 2% higher risk of metabolic syndrome or diabetes.
- Evidence certainty
- The authors classified the overall evidence as low or moderate certainty.
- Study limitation
- The findings are largely based on observational research and demonstrate associations rather than proof of causation.
Sources
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