For what it's worth, I've found that muscular twitches are always a symptom of magnesium deficiency, which caffeine does exacerbate. Since I adore coffee and d

For what it's worth, I've found that muscular twitches are always a symptom of magnesium deficiency, which caffeine does exacerbate. Since I adore coffee and don't intend to stop drinking it, I supplement with magnesium drops in the water I drink large amounts of all day. This has completely prevented tics and twitches, and greatly reduces jaw tension as well.