The Harvard School of Public Health produced this fact sheet discussing how sugary drinks contribute to the obesity epidemic in this country. The sheet detailed how soft drink sizes increased from 6.5 ounces in the 1950s to the 20-ounce size commonly consumed today. Sugary drink consumption as a percentage of calorie intake increased from 4 percent in the 1970s to 9 percent in 2001. The sheet also contained 28 references and would be an excellent source for my research paper.
Harvard School of Public Health. (2012, June). Fact sheet: Sugary drink supersizing and the obesity epidemic. Retrieved from http://cdn1.sph.harvard.edu/wp-content/uploads/sites/30/2012/10/sugary-drinks-and-obesity-fact-sheet-june-2012-the-nutrition-source.pdf