According to U.K.-based paper The Herald [Plymouth], a new study shows most people have no idea where their food comes from or how it’s made.
Vegan organization Viva! commissioned the study, which surveyed 2,000 people ...
To summarize from the the already brief article where most animal products come from: (1) factory farms. Furthermore, the "how", (2) dairy cows have to be impregnated in order to produce milk, (3) male chicks on egg farms are culled (usual/majority practice) or that (4) most animals are slaughtered at a relatively young age (less than 30% of their potential).
The link is broken that should provide the actual study. Can anyone prove that this survey exists or find another survey (of equivalent size showing that most people in industrialized countries like the US and UK have little "idea where their food comes from or how it’s made")?