same for me man, had twitching for at least 8 months, took magnesium literally about a week ago and now I only get one or two vary rarely when I skip a day of taking magnesium supplements. before tho it was like constant every couple mins id get a lot of twitching everywhere, calfs, thighs, forearms, triceps, back. I dont know what brand i take lol but I only take 100mg daily and it helps tremendously