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Eating whole fruit more frequently is associated with better cardiovascular health, according to a study analyzing dietary data from approximately 371,000 Americans. Researchers found that people who ate whole fruit more often had lower rates of several heart-related conditions, while fruit juice consumption showed no consistent relationship with cardiovascular health.
The study, published in Current Developments in Nutrition, was led by researchers from the University of North Dakota. The findings suggest that how people consume fruit may matter as much as how frequently they include it in their diets.
Researchers examined the relationship between whole fruit and 100 percent fruit juice consumption and conditions including high blood pressure, high cholesterol, coronary heart disease, and heart attacks. After accounting for factors such as age, income, education, and smoking status, higher whole fruit consumption was associated with lower rates of these conditions.
Fruit juice, however, produced a less consistent picture. The only statistically significant associations involved heart attacks among people who drank juice slightly more frequently and high cholesterol among those who consumed it slightly less often. These results did not establish a clear overall relationship between juice intake and cardiovascular health.
The differences may partly explain why health authorities increasingly emphasize whole fruit over juice. Dietary guidelines in the United States recommend two cups of fruit daily for a 2,000-calorie diet, yet most Americans reportedly fall short of that target.
Whole fruit retains dietary fiber that is largely removed during juicing. Fiber can slow the absorption of sugars and help regulate blood glucose levels. Researchers also suggested that differences in polyphenols, naturally occurring plant compounds with potential health benefits, could contribute to the observed associations.
However, the study did not directly measure fiber intake or polyphenol content, meaning these explanations remain hypotheses rather than confirmed mechanisms.
The researchers also acknowledged that previous studies have identified potential cardiovascular benefits associated with fruit juice. Their findings do not establish that juice is harmful or that whole fruit directly prevents heart disease.
Because the analysis captured dietary habits and health conditions at a single point in time, it cannot demonstrate cause and effect. Long-term studies will be needed to determine whether eating whole fruit more frequently actually reduces cardiovascular risk.
For now, the findings reinforce existing dietary advice to eat more whole fruit as part of a balanced diet.
