Complex sentence: In Sikhism, only vegetarian food is served in the Gurdwara (Sikh temple) but Sikhs are not bound to be meat-free and the general consensus is that Sikhs are free to choose whether to adopt a meat diet or not.
Split into simpler sentences: In Sikhism, only vegetarian food is served in the Gurdwara (Sikh temple). The SGPC issued Sikhs are not bound to be meat-free and the general consensus is that Sikhs are free to choose whether to adopt a meat diet or not.