Cardiovascular disease is the leading cause of death in New Zealand and around the world. Eating habits and other lifestyle factors play a key role in determining the risk of heart disease.

Pioneering studies by Dean Ornish, MD, Caldwell Esselstyn Jr., MD, and others have shown that a low-fat, plant-based diet, combined with regular exercise and a healthy overall lifestyle, can prevent, delay, and even reverse heart disease and other cardiovascular events.

Dr. Ornish’s landmark study tested the effects of a plant-based diet on participants with moderate to severe heart disease. There were no surgeries or stents—just simple diet and lifestyle changes. Within weeks, 90 percent of chest pain diminished. After just one month, blood flow to the heart improved. After a year, even severely blocked arteries had reopened. At the Cleveland Clinic in the USA, Dr. Esselstyn tested the same approach on patients with severe heart disease and published similar results. Thirty years later, all of the compliant patients are still thriving.

Plant-based diets benefit heart health because they contain no dietary cholesterol, very little saturated fat, and abundant fiber. Meat, cheese, and eggs, on the other hand, are packed with cholesterol and saturated fat, which cause plaque buildup in the arteries, eventually leading to heart disease.