This is only a recent thing historically. Government subsidies and lobbying from the meat industry, not to mention letting agricultural corporations create our food pyramid, got us to where we are today.
We have been led into an unhealthy lifestyle for the profit of a handful of billionaires.
Take a look at places where people live above 100 yrs regularly. They aren’t shoveling beef down there throats like Americans are. And we die 20 to 30 years earlier on average