I was reading up online why I have been feeling so crappy and I was told not only by reading online but a woman that is a natropath at my gym that I should take a Magnesium supplement…I went to GNC and bought one and they gave me the 500mg one…it says to take it every day but 500mg every day..isnt that kind of excessive? I eat tons of veggies and fish once a week (salmon) is it ok if i take the Magnesium supplement 1x a week? or just not take it at all?