While a summary of the what you have read is contained within the literature review, it goes well beyond merely summarizing professional literature. It focuses on a specific topic of interest to you and includes a critical analysis of the relationship among different works, and relating this research to your work.
Dr. Richard Bernstein, who is a type I diabetic and produces no insulin of his own, has made the calculations without the influence of insulin. Apparently 1 gram of carb causes about a 5 mg/dL increase in blood sugar and 1 unit of regular insulin drives blood sugar down by 8 mg/dL. Hope this answers your question. MRE
Dextrose and Glucose are not the same but are used interchangebly. Dextrose is the biologically active form of Glucose (D-Glucose). Since L-Glucose is rare and not natural, glucose always refers to D-Glucose which is why dextrose and glucose are used interchangebly, but it is an important distinction.