These things always make me think of the late actor Robert Cummings, popular in the 1940s and 50s. He became so identified with (and afraid of losing) his youthful image that he turned into a health fanatic. I remember reading about his taking 70 or 80 vitamin pills every day, on an hourly schedule almost to the exclusion of other activity. I suppose that was as close as he could get to the Cenegenics routine at that time.
I'm also reminded of Ray Kurzweil, the current guru of "the singularity" who believes he will live forever thanks to the medical advances that are just around the corner (and probably always will be). Kurzweil makes Cummings look like a piker, as he reportedly takes over 200 vitamins and supplements a day, and even has a staff member who organizes them for him. He also spends one day a week at a clinic for intravenous supplementation (maybe even Cenegenics, for all I know).
I think it's great that folks like these have such options, but personally I feel they have gone off the deep end.