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Billed as cardio-protective, the Ornish diet eschews animal proteins and oil, yielding a plan that’s every low (less than 10%) in fat.

It’s essentially a Mediterranean diet with certain Asian influences.

With a high proportion of centenarians in its population, the Okinawan diet gets lots of interest. It focuses on low meat consumption and an emphasis on soy foods like tofu.

The diet is derived from the various eating patterns found around the Med, and concentrates on fruits, vegetables, whole grains, minimal animal protein, and fat from healthy oils.