I can't comment on this protocol, and generally agree with Dr. Edwards concerning dietary requirements. What I've learned in dealing with one particular person who has survived a rare condition (hypokalemic period paralysis) longer than doctors expected is that there is a strong connection between insulin sensitivity, exercise, carbohydrate metabolism and ratios of intracellular/extracellular potassium ions. These ratios can change very rapidly. Fluctuations in potassium levels inside and outside cells take place in people who do not have channelopathies, but
those channelopathies highlight dynamic changes that commonly go unrecognized. At this time about half of those with clearly diagnosed potassium channelopathies do not have a recognized cause, and we simply don't know how many less extreme versions may be out there undetected.
I want to caution all those inclined to experiment with massive changes to electrolytes by mentioning that KCl is used in lethal injections. First do no harm.