Scientists say there is little evidence the pills do any good -and in fact some could be causing serious harm.

科学家表示，没有证据表明这些制剂对健康有益，而且实际上有些制剂还可能损害健康。

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So far, they've been banned by some shopping malls, schools and amusement parks and were considered one of the 10 worst toys for kids last year by the World Against toys Causing Harm W. A. T. c.

迄今为止，它们已经被明令禁止在商业街，学校和娱公园使用，并被去年的世界关注玩具安全组织评选为十大最糟玩具之一。

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So far, they've been banned by some shopping malls, schools and amusement parks and were considered one of the 10 worst toys for kids last year by the World Against toys Causing Harm W. A. T. c.

迄今为止，它们已经被明令禁止在商业街，学校和娱公园使用，并被去年的世界关注玩具安全组织评选为十大最糟玩具之一。

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