Since fungal candida has an ability to live off of most everything and exist under every condition, you could never remove every nutrient without suffering more. Magnesium facilitates hundreds of reactions in the body and is a key mineral in helping to balance calcium intake. You would suffer more by not taking it, than taking it as it helps all cells in the body. Any study where fungal candida has been shown to be able to live off of a nutrient, was done with that nutrient as the only nutrition source available, or perhaps 1 or 2 others present. Those aren't the conditions that exist in the body.