Ultra-Processed Foods Raise Heart Disease Risk, but Swaps Can Help

A group of European scientists published research in May 2026 showing that ultra-processed foods raise the risk of heart disease, metabolic syndrome, and several other chronic conditions. The study, covered by Healthline, also found that replacing ultra-processed foods with whole food alternatives can meaningfully reduce those risks.

Ultra-processed foods include packaged snacks, sugary drinks, fast food, and ready-to-eat meals that contain artificial additives, preservatives, and flavor enhancers. They now make up more than half of the average American diet.

The researchers found that people who ate the most ultra-processed foods had significantly higher rates of cardiovascular disease compared to those who ate the least. The association held even after controlling for overall calorie intake and other lifestyle factors.

A separate study published the same month found that a simple sugar called fructose, common in ultra-processed foods, may drive obesity and metabolic disease by disrupting the body's normal hunger and energy signals.

The good news from the research: swapping ultra-processed foods for minimally processed alternatives, such as whole grains, fresh vegetables, legumes, and lean proteins, was associated with lower cardiovascular risk even when total calorie intake stayed the same.

Nutritionists say the findings support a straightforward approach to eating: focus on food quality, not just quantity.

"You do not need a perfect diet," said one dietitian quoted in the report. "Replacing a few ultra-processed items each day with real food can make a real difference."

The researchers called on food manufacturers and policymakers to make whole foods more accessible and affordable, particularly in low-income communities where ultra-processed foods are often the cheapest option.