Another way to get enough B12 might be to eat like our ancestors, eating dirty food and water. (nutritionfacts.org)
Keep in mind that heavy - traffic areas, noise, the presence of other animals, dirty food containers, or nearby litter boxes can deter a cat from eating. (www2.vet.cornell.edu)
Not every additive in processed foods is harmful or dangerous, but these dozen dirty food additives might be cause for concern. (treehugger.com)