Jack Lalanne - Sugarholics - YouTube
Here is the video that got my Dad to start eating right. It's from the 50's. My Dad is 67 and probably more primal than most on this forum, but has never heard the term "Primal Blueprint". I told him how I eat, let him see my transformation over the last couple years, help him with choices in foods, and showed him this video. After watching it he said something like, 'If we've known this since the 50's why are we just doing it now?"
For me, primal eating is about eating whole foods and getting labwork done on a regular basis. I watched my triglycerides go from 400+ untreated to 35. HDL cholesterol went from 20 to 50. Blood pressure from 150/90 (with meds) to 110/60 without meds. I eat bananas all summer long. I eat potatoes in the fall. I had watermelon, fish, and asparagus just now for lunch.
Good luck! And good job for lookin' after your man...