Mark Hyman, M.D. should be praised for his forward-thinking approach to personalized nutrition with the UltraMetabolism Diet. His laundry lists of scientific principles and research may be overwhelming and intimidating to some. Still, Hyman's advice regarding whole foods, high-fiber fruits and vegetables and stress reduction is based on sound science. With a cover line that promises a "simple plan for automatic weight loss," the diet is anything but. The detailed shopping list and kitchen recommendations can be overwhelming for an inexperienced dieter, and while Hyman offers some fabulous recipes for those with a holistic view of food, they may be too time-intensive and expensive for many Americans.
However, since dieters are required to swap out processed foods, artificial sweeteners and saturated and trans fats for fiber-rich whole foods, they're likely to get full on fewer calories -- and lose weight. With the diet's emphasis on exercise and stress reduction, most UltraMetabolism dieters will experience a spike in metabolism to boot. But people who are accustomed to eating large portions may have trouble losing weight on this diet. Since portion control is not emphasized or defined and there's little to no room for the occasional indulgences, dieters may feel deprived and binge. And even binging on healthy foods can cause weight gain.
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