PARIS, France — June 27, 2026
Food Preservatives and Heart Disease Risk: Study Finds Link Between Packaged Foods and Higher Cardiovascular Risks
Food Preservatives and Heart Disease Risk are drawing renewed attention after a large-scale study found that higher consumption of certain preservatives commonly used in packaged and processed foods was associated with an increased risk of high blood pressure and cardiovascular disease.
The research, published in the European Heart Journal, analyzed health and dietary data from approximately 112,000 adults in France over a follow-up period of seven to eight years. While the study identified significant associations between some food preservatives and cardiovascular health, the researchers emphasized that the findings do not establish a direct cause-and-effect relationship.
Researchers Tracked Diet and Heart Health Over Several Years
The study examined participants’ eating habits to identify the types and amounts of food preservatives they consumed through processed and packaged products.
Researchers then monitored participants for the development of cardiovascular conditions, including:
- High blood pressure (hypertension)
- Heart attack
- Stroke
- Angina
According to the findings, nearly 99% of participants consumed foods containing preservatives during the first two years of the study, highlighting the widespread presence of these additives in modern diets.
Certain Preservatives Associated With Higher Health Risks
The analysis found that individuals with the highest intake of specific preservatives had a 29% higher risk of developing high blood pressure compared with those who consumed lower amounts.
The study also found an approximately 16% higher risk of cardiovascular disease among participants with greater exposure to certain preservatives.
Researchers identified several additives that showed stronger associations with cardiovascular risks, including:
- Sodium nitrite
- Potassium sorbate
- Certain sulfite compounds
In addition, higher intake of some antioxidant preservatives appeared to be associated with elevated blood pressure.
However, the researchers cautioned that these findings represent statistical associations rather than proof that the preservatives themselves directly cause heart disease.
More Research Needed to Understand Biological Effects
The research team described the study as an important early step toward understanding how food additives may influence long-term cardiovascular health.
Because the research was observational, it cannot determine whether preservatives directly lead to disease.
Scientists suggested that some preservatives may contribute to increased oxidative stress or affect metabolic processes within the body, which could potentially influence heart health over time. Additional laboratory and clinical studies will be needed to better understand these biological mechanisms.
Lifestyle Factors May Also Influence the Findings
Health experts emphasized that people who regularly consume large amounts of processed foods often have other lifestyle factors that may independently increase cardiovascular risk.
These may include:
- Lower levels of physical activity
- Higher sodium intake
- Diets rich in saturated fats
- Excess calorie consumption
- Other underlying health conditions
As a result, researchers stress that the observed associations should be interpreted carefully and not viewed as definitive evidence that preservatives alone are responsible for cardiovascular disease.
Experts Recommend Choosing Fresh, Minimally Processed Foods
Although additional research is needed, the findings support existing dietary guidance that encourages limiting heavily processed foods whenever possible.
Nutrition experts generally recommend choosing:
- Fresh fruits and vegetables
- Whole grains
- Home-cooked meals
- Minimally processed foods
- Lean sources of protein
Reducing reliance on highly processed packaged foods may help support overall cardiovascular health as part of a balanced lifestyle that also includes regular physical activity and routine medical care.
The researchers say future studies will be essential to determine whether reducing exposure to specific food preservatives can meaningfully lower the risk of hypertension and cardiovascular disease.
What the Findings Mean for Consumers
The researchers stressed that consumers should not interpret the study as a reason to avoid all packaged foods or panic over individual ingredients. Instead, the findings reinforce long-standing dietary recommendations from public health experts to limit the consumption of ultra-processed foods and maintain a balanced diet rich in fruits, vegetables, whole grains, legumes and lean proteins. Experts note that food preservatives are approved by regulators for specific uses and safety limits, but ongoing research helps scientists better understand their long-term health effects.
They also emphasized that overall dietary patterns, physical activity, smoking, alcohol consumption and existing medical conditions remain major factors influencing cardiovascular health. Future clinical and experimental studies will be needed to determine whether reducing exposure to specific preservatives directly lowers the risk of hypertension and heart disease
