Ultra‑processed foods are industrially engineered products packed with added fats, sugars, salts and a host of chemical additives. Think soda, bag‑of‑chips, frozen meals and cured meats. In the manufacturing process, many natural nutrients disappear, leaving a product that bears little resemblance to its original ingredient.
Today, these items make up roughly 60 % of the average adult’s calories in the United States and an even larger share—about 70 %—of what children eat.
Earlier research has already tied heavy consumption of such foods to metabolic syndrome, a cluster of conditions that includes obesity, high blood pressure, abnormal cholesterol and insulin resistance. Moreover, people who eat a lot of ultra‑processed items tend to have higher levels of high‑sensitivity C‑reactive protein, a marker that predicts future cardiovascular problems.
Why the Heart Connection Matters Now
Heart disease remains one of the leading causes of death worldwide, and the share of ultra‑processed foods in our diets keeps climbing. Understanding whether these foods truly worsen heart health could shape doctor‑patient conversations and public‑policy decisions.
What the Latest National Study Found
Researchers at Florida Atlantic University examined data from the U.S. National Health and Nutrition Examination Survey (NHANES). They looked at 4,787 adults aged 18 + who reported their food intake over two days and answered whether they had ever experienced a heart attack or stroke.
Participants were grouped into four categories based on the percentage of calories that came from ultra‑processed foods, ranging from the lowest to the highest intake.
A 47 % Jump in Cardiovascular Risk
After adjusting for age, sex, race, smoking status and income, the analysis showed that adults in the highest consumption group faced a 47 % greater odds of reporting a heart attack or stroke compared with those in the lowest group.
Parallels With the Tobacco Era
“Changing the food environment is as crucial as changing individual habits,” said one of the study’s senior investigators.
Beyond the Heart: Links to Cancer
The same dietary patterns that elevate heart risk also appear to drive rising rates of colorectal cancer, especially among younger adults.
Practical Advice for Clinicians and Patients
Although definitive randomized trials are still needed, doctors can already encourage patients to cut back on ultra‑processed items while adopting proven lifestyle changes—more fruits, vegetables, whole grains and regular physical activity.
Creating food environments where the healthy choice is the easy choice may be the most effective strategy to curb the growing burden of heart disease.