补镁补多了会咋样？

Hi, 文人，that's a very good question! 没有时间翻译请原谅，see below:

Hypermagnesemia is an uncommon clinical finding, and symptomatic hypermagnesemia is even less common. This disorder has a low incidence of occurrence, because the kidney is able to eliminate excess magnesium by rapidly reducing its tubular reabsorption to almost negligible amounts.