In âThe Zone,â Sears claimed that by adhering to a diet consisting of 40 percent carbohydrates, 30 percent protein and 30 percent fat, a practitioner would reap the following benefits: permanent weight loss, prevention of disease, enhanced mental productivity and peak athletic performance.n âThe Zone,â Sears claimed that by adhering to a diet consisting of 40 percent carbohydrates, 30 percent protein and 30 percent fat, a practitioner would reap the following benefits: permanent weight loss, prevention of disease, enhanced mental productivity and peak athletic performance.