Hi everyone, I'm new to the forums. Recently, I went to a naturopath, who recommended high doses of magnesium to help me with my very broken sleep. Specifically, I was prescribed 780 mg. of magnesium daily. I've actually been taking about 300 mg. a day for years, and without ill effects. On the high dose, my sleep did start to improve, but within a week the gastrointestinal effects were severe, and I went off the magnesium altogether. When I told the naturopath about my unpleasant symptoms, she suggested that maybe I actually had a bug and that CFS patients should be able to tolerate doses up to 1000 mg. per day. Has anyone had any experiences, good or bad, with high doses of magnesium? My understanding is that about 350 mg. per day is usually considered the upper limit, so I'm a bit surprised my naturopath hit me with such a whopping big dose.