6 Month Intervention Essay

The 6 month intervention study by Jenkins and others (2011) is a follow-up study of their 2003 study. In this study, they tested the impact of dietary advice on cholesterol and other CVD risk factors as well as the long term effect of the portfolio diet. Three intervention groups with different dietary advice was used: the control group with a low-saturated fat therapeutic diet, the routine dietary portfolio group with 2 clinic visits, and the intensive dietary portfolio group with 7 clinic visits (Jenkins and others 2011). The result showed a significant LDL-C reduction for both dietary portfolio groups compared with the control group. Moreover, there was no significant difference between two portfolio groups, which demonstrated the effectiveness of the dietary portfolio in real world condition regardless of the intensity. Overall, even though the LDL-C reduction of dietary portfolio with dietary advice was lower than that of the metabolic diet in 2003 study, it still showed relatively …show more content…
To begin with, the author misunderstood the purpose of the study. Even though the study was conducted to show the effectiveness of the dietary portfolio in real-world condition along with its long term effect, the author introduced this study as the experiment that demonstrated the reduction of LDL-C with the addition of certain food groups. In addition, the context of the study did not present the intervention groups in the study. The author briefly mentioned the development of the portfolio diet idea but focused on giving dietary advice for the readers by listing examples such as foods of rich viscous fibers and plant sterols. Overall, this article mentions that portfolio diet can be beneficial for lowering LDL-C but lacks the significance of the study. Therefore, this article is poorly written and runs the risk of misleading readers about the original