There is a great deal of this kind of nonsense in the medical journals which, when taken up by broadcasters and the lay press, generates both health scares and short-lived dietary enthusiasms.
医学期刊中存在大量此类无稽之谈,当这些内容被广播公司和非专业媒体采用时,会引发健康恐慌和短暂的饮食热潮。
这是限制性定语从句,关系词 "which" 指代先行词 "nonsense"(无稽之谈),在从句中作主语。从句结构为 "which...generates...",其中插入了一个时间状语从句 "when taken up by broadcasters and the lay press"。从句谓语是 "generates",宾语是 "both health scares and short-lived dietary enthusiasms"。该从句对先行词 "nonsense" 进行限定性说明,阐述这类无稽之谈的具体后果。