Actually now plenty of things are condidered vegetarian if you study the chain well!
Pork from australia considered vegetarian because they are fed corn & wheat only!
Chicken are also vegetarian because they are fed only corn & wheat too!
Beer & stout also on the vegetarian list because they are made from 100% wheat & malt!
Red & white wine from grape!
If all these are not considered vegetarian then grapes, corn, wheat, malt should never be consume by vegetarian!!