Webmd says taking 350mg+ magnesium daily is unsafe and may cause death?

Isn't this highly exaggerated? I've been taking 420mg+ magnesium glycinate daily for months and i know its water soluble and is very safe. Can anyone give more info or is webmd is becoming shit?

I mean coma and death from magnesium lol wtf.

Isn't this highly exaggerated? I've been taking 420mg+ magnesium glycinate daily for months and i know its water soluble and is very safe. Can anyone give more info or is webmd is becoming shit?

I mean coma and death from magnesium lol wtf.