I've been taking magnesium (malate) for quite a while now, and I believe it helps me, most noticeably with muscle tension/cramping/pain. I typically take a dose in the morning, a dose in the evening plus an epsom salt bath before bed. I split the dose this way because I wanted to try and get more in every day but taking a single large dose seemed like it would be pointless because of bowel tolerance/absorption. Anyway, I've been bad about taking my supplements the last week or so because of nausea (well, the last month but very bad last week) and noticed some ill effects that I think were attributable to missing my normal supplements (increased muscle soreness at night=disrupted sleep, constipation, muscle cramps), but also feeling a little less tired. I am back 'on the wagon', and have this feeling that I get significantly more sleepy/tired/weak after my morning dose of pills, which includes magnesium, potassium, salt and folate. I know that magnesium helps relax muscles, and that it helps some people sleep, and it got me thinking that perhaps taking my morning magnesium dose is actually reducing my overall functionality and making me feel worse in the morning. My evidence is weak, since so many factors can be at play in how one feels minute to minute, day to day and week to week, but I am wondering if others have noticed magnesium making them feel more tired, sleepy or weak? Or if you know a reason why it might have this effect. Thanks, as always, for sharing your wonderful collective experience and wisdom!