Lester Morrison and John Gofman, undertook studies in the 1940s and 1950s (almost 70 years ago!) to determine the effect of diet on heart disease in people who had already had a heart attack.4 The doctors put these patients on a diet with less fat, cholesterol, and animal-based foods—a regimen that dramatically reduced subsequent recurrence of heart disease. Nathan Pritikin did the same thing in the 1960s and 1970s.5 Then Drs. Esselstyn6 and Dean Ornish7 set out to learn more in the 1980s and 1990s. Working separately, they both showed that a plant-based, high-carbohydrate diet controlled and
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