Ordovas is, however, inching his way ahead. In a joint project with Metabometrix, he is examining a few thousand subjects, some who have severe cases of metabolic diseases such as obesity and some who are healthy, to identify how extremes differ from the norm. He will also investigate whether diet and exercise tailored to a person's unique metabolic profile can bring weight down to normal and prevent a premature slide into bad health. In the future, instead of scanning food labels for calories, fats and carbs, we might be matching labels to our metabolic type.�

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