I only found out after asking before a test at Nottigham university.
Diabetics need to contact Insulin diabetes trust
http://www.iddtinternational.org/campaigning/gmvsanimalinsulin.htm
You can also ask to use yeast cells cultures rather than bovine or pigeon.
Join industrial workers of world to support you for temping in areas like this & also as a worker in establishements to stop abuses. Many in IWW dont describe themselves as green because of fundamentalist zerzanites, though IWW is toughest union out & has had members fighting climate change many decades before the others. I have worked on these with Dr Ho & others of Insitute for Science in Society+Dr King HGalert. Supporters include FOE,GMwatch,EF,Greenpeace,people not planet various "paper" international unions,ethical universalists of various religions & many others
www.iww.org.uk
www.hgalert.org
At moment IWW members have been campaigning independently on all these issues, we are open to more members with knowledge on these issues who believe in a truelly free democratic society& union open to all who believe in it.We also have many cooperative, temporary & voluntary-unemployed workers