If you go to Iodine ph levels to the last paragraph Dr. Jorge D Flechas on salt and ph. The very last link Iodine And Sea Salt . The last paragraph says the following. Many use the reverse osmosis to remove another toxic sodium compound-sodium fluoride, from our drinking water butreverse osmosis removes a lot of natural minerals in the water. So many nutritional experts recommend adding a pinch of salt. Not disputing just trying to figure what is best. Because I plan to buy one next week