The answer is no. However, there is a minimal increase in sodium. Salt is essential to regenerate the resin inside the tank, after regeneration the salt water is rinsed out a drain line. The ion exchange process adds a small amount of sodium. The increase of sodium in 1 quart of softened water would be equivalent to the sodium in 1 slice of white bread (approximately). The exact amount of sodium added will vary depending on the hardness of the water.