Yes, that was a bit much. The Cold War produced a much more serious fitness boom, especially during the Kennedy Administration.[1] It also produced an education boom. Today, 71% of young Americans are ineligible to serve in the military.[2] Too fat, too dumb, too criminal, or too drugged. There seems to be little concern about this at political levels.
[1] https://en.wikipedia.org/wiki/Chicken_Fat_(song)
[2] https://www.cdc.gov/physicalactivity/downloads/unfit-to-serv...