Political scientists examine the government food policies such as taxation, regulation and debate the government’s role in feeding its citizens. Scientists from the fields of nutrition, medicine, chemistry, biology, and agriculture study every aspect of food, from diet, health, and nutrition to chemical composition, production, and preservation. Food historians use interdisciplinary approaches to study food and its place in social class, religious practice, immigration, urbanization, technological change, the growth of the food industry, counterculture movements, and government policy.[4]