|Reference code: ||PT/FB/BL-2010-176.07|
|Location: ||Arquivo PCA - Pasta 14/2010|
|Enhanced sweet taste sensitivity in candidates for bariatric surgery|
|Publication year: ||2019|
While taste has been suggested as a potential determinant of feeding behavior in obesity, the supporting evidence, namely of altered sensitivity for sweet taste in obese relative to lean individuals, is inconsistent. Furthermore, such evidence has typically been obtained in studies including only small sample sizes, and with substantial methodological heterogeneity. Importantly, potential associations between taste perception and measures of reward-related feeding behavior remain undetermined.
A cross-sectional study was conducted to compare 212 patients with severe obesity, on the waiting list for bariatric surgery, and 94 healthy individuals. Psychophysical gustatory parameters, namely intensity and pleasantness ratings of sour, salt, sweet and bitter tastants, and taste thresholds as assessed with electrogustometry, were determined. Reward-related feeding behavior was assessed using self-rated psychometric scales.
In addition to having a higher BMI, bariatric patients were older, more frequently female and had higher self-rated depression scores than their respective controls. Logistic regressions to assess the likelihood of belonging to the bariatric group were thus adjusted for age and gender, in addition to type II diabetes, education level and research center. In these analyses we found that higher taste thresholds and higher sweet intensity ratings were associated with belonging to the bariatric group (1.03<OR=1.04, both p<0.05), as were higher ratings for hedonic hunger, food addiction symptom scores, restrained and emotional eating (1.94<OR=4.27, all p<0.01), and lower alcohol acceptance (OR = 0.91, p = 0.001). In final exploratory analyses of potential linear relationships between the variables associated with the obese status, while hedonic hunger, food addiction or emotional eating were strongly inter-related, they were not associated with sweet intensity, that in turn had a closer relationship with restrained eating and alcohol acceptance.
Here we found that subjects with severe obesity report higher sweet taste intensity ratings than healthy study volunteers. Furthermore, while self-report measures of reward-related feeding behavior seem to assess a similar construct, sweet intensity was not associated with these variables, and may represent a separate obesity-related dimension.
|Accessibility: ||Document exists in file|
|Secondary author(s): |
|Torres, S., Fernandes, A. B., Camacho, M., Oliveira Maia, A. J., Study Group, F.|
|Document type: |
|Number of reproductions: |
|Ribeiro, G., Torres, S., Fernandes, A. B., Camacho, M., Oliveira Maia, A. J., & Study Group, F. (2019). Enhanced sweet taste sensitivity in candidates for bariatric surgery. Obesity Facts, 12(Suppl.1), 22-23. |
|Indexed document: ||Yes|
|Keywords: ||Obesity / Sweet taste|
Enhanced sweet taste sensitivity in candidates for bariatric surgery