The only "coincidence" I have suspected of being tied to the heavy salt blooms from the nostrils is related to the amount of food the lizards eat. My young adults are sort of "binge" eaters, and it LOOKS like they blow more salt after they have gone overboard on the groceries, particularly if they were dusted crickets. That is my impression anyway. I keep meaning to get the "salt" analyzed to see just what exactly is also being excreted, such as excess potassium salts, etc. I'm sure someone has already done this, but if so, I can't locate it. Hint Hint LOL.
DC