1. Dr. Dean Ornish and Dr. T. Colin Campbell have conducted research and published books that suggest a "Whole Food Plan

(WFPB) diet is best for achieving optimal health. Others, such as Dr. Robert Atkins, Dr. Loren Cordain, and Dr. Robert Lustig,

advocated very different positions, with less emphasis on carbohydrates (plant-based foods) and greater emphasis on prote

(animal foods).

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