Why don't you get magnesium in the same way in your diet, for example Bananas, wholemeal bread, nuts, vegetables, etc. , we get you into the body with diet, and it should be rich in all vitamins and minerals. Something else are athletes who require it more recommended daily dose for a normal person is 300mg per day it is almost nothing if you name a good diet and you need to drink the mineral water .... But z5 to the question, if for a person who does not have in the menu fever at all no , so according to the table that appears on the Wiki, you would have to drink something around 2l a day. Heh I even found a Magnesia calculator that I don't even believe in as a poppy, as I just wrote an advertising trick ... here >>>>
http://www.magnesia.cz/ because whatever I combined I always have a lack of magnesium: D ☠ ☠ ☣ ☠ ☣ ☠ ☣ ☠ ☢