Why don't you drink milk? Is it lactose intolerance? I have celiac sprue and eat no grains. Also, lactose intolerance. I am, however, able to drink raw goat's milk kefir if I ferment it long enough (2 days). If this is your problem, I can let you know where to get some kefir grains (gluten-free: they're not really a grain)so you can make your own. If you treat them well, they will grow and ferment your milk long enough for you to will them to whomever. About the magnesium. I don't know if this will help but, I take epsom salts - about 3/4 tsp every morning (I am needing to increase it). I mix it in with my kefir - can hardly taste it.