The issue focused on if people will become vegetarians or vegans and what they would look like

https://www.ncbi.nlm.nih.gov/pubmed/24090559

http://www.ncbi.nlm.nih.gov/pubmed/24082665

http://www.ncbi.nlm.nih.gov/pubmed/24082368

http://www.ncbi.nlm.nih.gov