Plenty of people at that time were either:

Starving or near starvation.

Eating a profoundly limited diet for much of the year, relying heavily on salting, drying, pickling - freezers didn't exist for most people, food imports were brutally expensive and too slow anyway for short-life fresh produce.

Eating food contaminated with all sorts of garbage (sawdust in bread..) as food safety inspection and enforcement was only starting to become a thing.

Eating offal. So much offal. Roasting a whole chicken was a few times a year treat for my mother's family, middle income, UK, 1940s/50s. "A chicken in every pot" was a US campaign slogan circa 1930 - before factory farming, lean meat was unaffordable for many. People on upper middle class incomes in well-connected parts of the world had it pretty good by the 1920s, but the average citizen, not so much.