The idea may seem weirdly paradoxical, but the Ornish program shows that radical, sweeping, comprehensive changes are sometimes easier for people than small, incremental ones. Ornish says that people who make moderate changes in their diets get the worst of both worlds: They feel deprived and hungry because they aren’t eating everything they want, but they aren’t making big enough changes to see an improvement in how they feel, or in measurements such as weight, blood pressure, and cholesterol.
