Go read about how horribly adulterated food was in Europe and the US in the 1800s and before. They’d add sawdust to flour, chalk, toxic metals, rotten meat was sold regularly, etc. Patent medicines were essentially drug trafficking or just scams. Soldiers in the Spanish-American war were supplied with canned meat from the US Civil War. I saw an old film from the time the Pure Food and Drug act was passed showing a can of meat being opened and it literally shot out from the gasses inside.