Magnesium. When I went on a low carb diet, I wasn't getting enough, and the muscles in my face were starting to twitch. I googled and found out it was caused by

Magnesium. When I went on a low carb diet, I wasn't getting enough, and the muscles in my face were starting to twitch. I googled and found out it was caused by a lack of magnesium. Once I started taking the magensium supplements, the twitching was gone in hours.