Why does lactose free breyer's ice cream still cause my lactose intolerance symptoms of gas, bloating, stomach pain & nausea to occur? is it not truely lactose free then??

Other issues: If you retain the same issues on some lactose free products you may have an intolerance to the milk protein in a raw form. Lactose intolerance is common to 1/4 of the adult population, but some have other factors that produce similar symptoms. A diet diary is one of the best ways to keep track of what your system can/cannot tolerate.