Excessive Potassium Concentration


I was reading the wikipedia article on Potassium and came across this quote (http://en.wikipedia.org/wiki/Potassium#Medical_supplementation_and_disease): “Potassium salts are also available in tablets or capsules, which for therapeutic purposes are formulated to allow potassium to leach slowly out of a matrix, as very high concentrations of potassium ion (which might occur next to a solid tablet of potassium chloride) can kill tissue, and cause injury to the gastric or intestinal mucosa. For this reason, non-prescription supplement potassium pills are limited by law in the US to only 99 mg of potassium.”

Since a lot of people are getting their potassium from powders, especially Potassium Gluconate, I think this might be something to consider. The problem is the RDA is 4.7 grams. Thus, you’d have to take 47 of the 99 mg tablets to get that amount. If you put that much powder into a drink and space it out over three drinks that might cause some gastric damage. Another discussion I read (http://forums.phoenixrising.me/index.php?threads/potassium-citrate-vs-potassium-gluconate.21208/), basically said that you probably wouldn’t need to be worried about this, since the potassium is spread out evenly in the drink and thus no high concentrations of potassium will make contact with the stomach wall. Some more info on this might help.

Is it something we should be worried about? Any suggestions concerning this? Might it be better to use a whole food source, such as bananas, spinach, chard, coconut milk?

Are there any other nutrients for which this is a concern?