Every time I see a headline like this all I can think of is that in 5 years or so we are going to see a headline along the lines of "Magnesium intake is related to legs falling off and low sex drive" which will turn out to be something that has always been known about taking too much magnesium but all those legless impotent people will still cry foul because some other study said magnesium good so they ate a "healthy" serving of it with every meal.

Eat good and healthy food, not supplements.