Being overweight increases a person’s risk of heart disease, stroke, and high blood pressure. Studies have shown that high-prote

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问题 Being overweight increases a person’s risk of heart disease, stroke, and high blood pressure. Studies have shown that high-protein diets help people lose weight who have not been able to lose weight in any other way. Therefore, high-protein diets can be an important part of a healthy lifestyle.    Which of the following, if true, most undermines the conclusion expressed above about high-protein diets?

选项 A、High-protein diets have been linked to heightened rates of high cholesterol, stomach cancer, and kidney failure.
B、High-protein diets are easier than conventional diets for most dieters to follow because they allow dieters to eat filling foods like meat and eggs.
C、Although many dieters initially show rapid weight loss on high-protein diets, most of them regain the weight as soon as they go off the diet.
D、Society should be more understanding of overweight people, and should not pressure them to pursue extreme diets.
E、The high-protein diet fad has created a niche dieting industry that grosses over $2 billion per year.

答案A

解析 Establishing a link between high-protein diets and other serious health complications throws the most doubt on the compatibility of high-protein diets and a healthy lifestyle.
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