NEW YORK, July 27 (Praxis Press) Roughly 55% of persons aged 20 years or older in the United States are obese or overweight and weight reduction remains the first-line treatment strategy. Metz and colleagues assessed the long-term effects of two types of diet: a prepackaged, nutritionally complete, prepared meal plan and a usual-care diet (UCD), based on patient choices made from an approved list of substitutions. They compared the effects of the two diets on weight loss and cardiovascular risk factors in overweight and obese persons. To perform the study they randomized 183 persons with hypertension/dyslipidemia and 119 persons with type 2 diabetes mellitus to the prepared meal plan or to the UCD. After one year, weight change in the hypertension/dyslipidemia group was -5.8kg with the prepared meal plan vs -1.7kg with the UCD plan; for the type 2 diabetes mellitus group, the change was -3.0kg with the...

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