My mother was rather fluent 40 years ago, but can’t speak a whole sentence anymore since she stopped using it.
Last year I gave her LBfH and within a few months, the nurses and other patients in her dialysis clinic treated her much better.
She claims it has nothing to do with the subs, but yeah. We know how that works.
@Budewr had good results with his mom aswell with Paragon. And she isn’t fluent as well, iirc.