Ultra-processed foods (UPFs) are industrial formulations with minimal whole-food content, including packaged snacks, sugar-sweetened beverages, processed meats, and ready-to-eat meals. Increasing evidence links high UPF intake to endothelial dysfunction: an early, reversible impairment of the vascular endothelium, the inner lining of blood vessels responsible for regulating vasodilation, thrombosis, and inflammation.
Diets rich in refined carbohydrates, trans fats, excess sodium, and additives promote oxidative stress and chronic low-grade inflammation. These mechanisms impair endothelial nitric oxide synthase (eNOS), reducing nitric oxide bioavailability and limiting vasodilation. The result is increased arterial stiffness and a pro-inflammatory, pro-thrombotic state. Emerging data also suggest that emulsifiers and artificial sweeteners may disrupt gut microbiota, contributing to vascular injury.
Prospective studies consistently associate higher UPF consumption with hypertension, coronary artery disease, and stroke. Since endothelial dysfunction precedes overt cardiovascular disease, reducing UPF intake and prioritizing minimally processed foods represents a critical, evidence-based preventive strategy for cardiometabolic health.
MBH/PS