Comparative Analysis of Approaches for Assessing Energy Intake Underreporting by Female Bariatric Surgery Candidates

Abstract

RMR did not interfere in underreporting estimates. However, PAL variations were responsible for significant differences in cutoff point. Thus, PAL should be considered when estimating underreporting, and even though the individual approach is less sensitive than the group approach, it may be a useful tool for clinical practice.

The under-reporting of energy intake influences the dietary pattern reported by obese women in the waiting list for bariatric surgery

“…The inconsistencies in the data of the Brazilian Food Consumption Table [18], regarding the non-differentiation of the energy contribution in certain types of preparations (raw or cooked, fried or roasted), could explain a possible change in the cut-off point for the classification of women's groups, leading to a greater number of under-reporting women. However, studies [17,26] identified a wide variation in the cut-off point for classification of plausible reporters and under-reporters, reaching proportions very similar to those found in this study. In addition, the high proportion of under-reporting women in this study may reflect the condition of these participants in the waiting list for bariatric surgery.…”

“…The use of predictive equations is one of the least accurate methods to estimate energy expenditure when compared to indirect calorimetry and doublylabeled water [24,25]. However, a study of 100 women from this same population [17] found a similar prevalence of under-reporting of energy intake using indirect calorimetry (78%) and predictive equations (84%) thus the possibility of energy hypometabolism as the answer for the high proportion of women who under-reporting the energy intake is discarded.…”

“…The women's situation at the time may have encouraged under-reporting, since failure to lose weight through clinical treatments is a justification for bariatric surgery, to which these women were candidates [17]. But one must also consider the societal trend of blaming the obese for their inability to lose weight, and in this case, under-reporting may have stemmed from the shame associated with reporting their real food habits [39].…”

“…The Resting Energy Expenditure (REE) was obtained through the predictive calculation described by Mifflin et al [16]. According with Quesada [17], this equation presented a lower variation (3.6%) of the predictive REE value in relation to the value of the direct REE method.…”

Vitamin D3 Loading Is Superior to Conventional Supplementation After Weight Loss Surgery in Vitamin D-Deficient Morbidly Obese Patients: a Double-Blind Randomized Placebo-Controlled Trial

“…Second, our study included a high percentage of women (80 %); however, this is very common in bariatric patients. Third, underreporting of food-intake has been frequently observed in bariatric patients [52]. To minimize this phenomenon, our patients received dietary counseling by a registered dietician before surgery to keep a low-energy and low-carbohydrate diet and the dietary records were documented 1 week before surgery.…”