FYI: This thread was started in 2002, so kind of old. However, part of the issue with low carb is that it is a sodium depleting diet. Without enough sodium, you lose the other important minerals (electrolytes).

The cream of tartar info is interesting. I've gotten various supplements in powder form, like potassium gluconate.

Just tend to the sodium though and the other electrolytes should stay good, but once you've lost them, they need replacing somehow.