Thanks for that info. Magnesium is also very much a part of heart rythm and relaxation, as well as sugar metabolism. Without enough magnesium, you're not going to get the insulin you need to metabolize it. Some people believe magnesium deficiency IS diabetes. Low magnesium is also conected to migraines, low energy, cramps, etc. Magnesium is also lost very easily - sweat, stress, etc. Here's a book on it:
The Magnesium Miracle.