QUESTION: Will my family suffer from lack of minerals necessary for good health in drinking water that has been softened by a Water Softener?

ANSWER: No. The Human body gains the minerals that are necessary to good health not through drinking water but through foods rich with minerals. The amount that the body would normally absorb through unsoftened water would not be significant. It would be necessary for a person to drink many gallons of water each day in order to obtain any amount of minerals. In conclusion, neither softened water nor water with a high mineral content would be considered a necessary source of minerals.
F.Y.I..... One gallon of milk provides the same mineral content as a bathtub full of unsoftened water!