It all hinges on how we define comfort. A comfy villager 500 years ago, with fruits and meat nearby was probably never really hungry, but, I'd argue:
- never the amount of processed calories at hand
- had to consume these calories on a regular basis.. no vehicles, no powered tools except the occasional mill, most things required walking of lifting
Obesity in the US didn’t really start taking off until the 1970s. There are plenty of people still alive from the before times. I believe that studies have been done, and people aren’t generally less active now than they were then.
- never the amount of processed calories at hand - had to consume these calories on a regular basis.. no vehicles, no powered tools except the occasional mill, most things required walking of lifting