I just looked it up. Citrate drives from citric acid which is in fruit. That would explain why I am so sick.

Anyone know of alternatives to magnesium citrate and oxide? I can't recall having a bad reaction to the oxide, but with these things it's impossible to say if it has other side effects.

I don't know why fruit makes me sick, but without a doubt it does. My doctor didn't believe me, but I get sick if I drink fruit, eat fruit, and now with this citrate. I have tolerated fruit a bit better since getting my root canal tooth out, but not much.