Overall Diet Quality Is Key to Heart Health, ACC Says

Overall diet quality rather than individual nutrients serves as the primary driver of cardiovascular health, according to a Scientific Statement issued by the American College of Cardiology on September 30, 2026. Published in the flagship journal JACC, the guidance urges health care providers and patients to focus on holistic eating patterns, such as the Mediterranean and DASH diets, while reducing highly processed foods and refined starches to prevent and manage heart disease.

Evolution of Heart-Healthy Dietary Guidelines

According to Frank B. Hu, MD, PhD, Professor and Chair of the Department of Nutrition at Harvard T.H. Chan School of Public Health and Chair of the Scientific Statement, modern cardiac nutrition guidelines have evolved away from single nutrients toward comprehensive, food-based strategies that mirror current scientific insights into cardiometabolic wellness. Suboptimal diet remains a key risk factor for cardiovascular disease, making dietary and lifestyle modification essential for primary and secondary prevention. Recent guideline recommendations strongly support diverse healthy patterns, including the Mediterranean diet and Dietary Approaches to Stop Hypertension, or DASH. These frameworks emphasize vegetables, fruits, whole grains, nuts, legumes, healthy protein sources, and unsaturated fats to lower cardiovascular disease risk.

Core Recommendations and Nutritional Priorities

The overall quality of nutrition, specific food origins, and manufacturing level dictate heart disease risk far more than the exact macro-nutrient breakdown of proteins, fats, or carbohydrates. Current evidence supports replacing saturated fats with unsaturated fats from liquid plant oils, nuts, seeds, and fish, alongside prioritizing whole grains and high-fiber foods. Dietary choices should limit saturated fats, refined starches, and added sugars. Beverage selections should prioritize water and other unsweetened options while restricting sugar-sweetened drinks. Moderate consumption of coffee or tea can fit into a healthy dietary pattern, whereas alcohol consumption should generally be limited or avoided.

Michelle Routhenstein, MS, RD, CDCES, CDN, noted in private practice reporting that the most effective approach adapts these cardioprotective principles to an individual’s specific preferences, culture, and lifestyle to ensure long-term sustainability. The Mediterranean and DASH frameworks both prioritize heart-healthy items such as lentils, beans, fruits, vegetables, seeds, nuts, whole grains, and beneficial unsaturated fats, while restricting products high in sodium, added sugar, and saturated fat; notably, the DASH program focuses heavily on cutting back on sodium to maintain healthy blood pressure levels.

Addressing Cardiovascular Kidney Metabolic Syndrome

Interconnected illnesses like chronic kidney disease, diabetes, obesity, and cardiovascular disease fall under cardiovascular kidney metabolic syndrome, a condition where nutrition and dietary habits are vital for both management and prevention. The advisory from the American College of Cardiology highlights the importance of cutting down on high-sodium options, restricting nutrient-poor processed items, and favoring plant-centric diets. Access to healthy foods, affordability, and other social drivers of health significantly affect diet quality. Food security must be evaluated across four distinct domains: availability, affordability, accessibility, and utilization of nutritious foods.

While modern treatments like GLP-1 receptor agonists deliver impressive cardiovascular advantages and substantial weight reduction, following a high-quality, nutrient-dense eating plan continues to play a vital role throughout the therapy process. Maintaining sufficient consumption of fiber, protein, vitamins, and minerals is vital to ward off nutritional deficiencies and support general wellness. Furthermore, Food Is Medicine programs that provide nutritious food as clinical interventions can improve diet quality, backed by growing evidence of benefits for clinical outcomes, though successful implementation requires integrating these programs into health care systems across diverse settings.