
Quality Diet, Not Carbs or Fats, Linked to Better Heart Health in Large Study
A Harvard-led study of nearly 200,000 US health professionals over about 30 years finds that heart health hinges on diet quality, not just low carbs or low fat. Diets rich in vegetables, fruits, whole grains, and healthy fats, with few processed foods and excessive animal proteins/fats, are linked to better cholesterol, lower inflammation, and a lower risk of coronary heart disease—supporting flexible eating patterns focused on food quality.












