Other outside experts also expressed cautionary notes, especially given that such structured plans can not only be difficult to adhere to but also expensive.
另有一些专家也提醒，这种结构性的饮食计划不仅难以长期坚持而且还花费昂贵。
If you choose to use any of my data, it behooves me to take you through the process by which I collect and analyze the data and offer some cautionary notes along the way.
如果你选择使用我的数据，我觉得有必要带你们走一遍我收集和分析数据的过程，也能给你们提供一些过程中需要注意的事项。
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