Good ol' Southern cooking killed my mother at the ripe old age of 52. I am really trying not to follow in her footsteps.
With all respect to your mother, my granny died at the age of 96 on a diet that included lard in everything. I, on the other hand, had a bypass at age 50. You play the hand you're dealt, I think.
Personally, I think part of what kept my granny alive so long was that she never ate a thing with preservatives in it until she was probably 80.