Longer essays may also contain an introductory page that defines words and phrases of the essay's topic. Most academic institutions require that all substantial facts, quotations, and other porting material in an essay be referenced in a bibliography or works cited page at the end of the text. This scholarly convention helps others (whether teachers or fellow scholars) to understand the basis of facts and quotations the author uses to support the essay's argument and helps readers evaluate to what extent the argument is supported by evidence, and to evaluate the quality of that evidence. The academic essay tests the student's ability to present their thoughts in an organized way and is designed to test their intellectual capabilities.
Obesity and chocolate consumption seemingly have no proven correlations. Yet, in this essay, many chocolate focused arguments have been presented, including the transient effect of chocolate on mood and the fact that it is as likely to create feelings of guilt as of well-being. Another possible positive dimension to chocolate is a correlation with cardiovascular health. Yet the potential benefits of flavanols in chocolate are currently offset by the high fat/carbohydrate content of most forms of chocolate. Whether chocolate is a food or a drug is also unclear. The literature outlines the chemical properties of chocolate which could help explain some addictive type behaviour, particularly in regards to nervous tension in women, but there is also a strong research focus on chocolate as a sensory-based indulgence. It can therefore be said that chocolate is not a healthy food, but can be enjoyed as part of a healthy and balanced diet and lifestyle.