This chapter focuses on the issues of religion and consumption in Islam specifically with regard to its objectives relating to Islamic law and consumerism in Islam. Consumerism in Islam is subject to the doctrines of Maqasid al-Shariah, specifically the upholding of the principles of Halal and haram, the incorporation of Shariah and the realization of moral and ethical values. Islam being the second largest religion of the world is expected to expand and will probably exceed the world's largest religious population, which is Christianity. According to the report by the Pew Research Centre, as of 2010, Christianity was by far the world's largest religion, with an estimated of 2.2 billion adherents, nearly a third of all 6.9 billion people on Earth. It is important to take note that Muslim consumers can be segregated into two major characteristics; firstly, they are those who are very devoted to the religion and prescribed to its teachings, and secondly, those who are quite liberal.