Japanese food is widely regarded as being very healthy.为什么这句话as后面要加being,直接说成 regarded as very healthy不接好了吗?

Japanese food is widely regarded as being very healthy.
为什么这句话as后面要加being,直接说成 regarded as very healthy不接好了吗?

两种方式都可接受.咱们改成主动式看看：
People widely regard Japanese food as being very healthy.
此处的介词短语as being very healthy作宾补,这个地方很特别,可以说being可省略或者说此处as后可以直接接形容词,这种句子课本上有不少.如：
He is regarded/considered as (being) honest.