Oliveira, Antônio Manuel Gouveia deGodoy, Cynthia Meira de Almeida2020-09-182020-09-182020-06-10GODOY, Cynthia Meira de Almeida. Intolerância alimentar após Bypass Gástrico em Y de Roux e sua correlação com a ingesta proteica e eficiência mastigatória. 2020. 39f. Tese (Doutorado em Ciências da Saúde) - Centro de Ciências da Saúde, Universidade Federal do Rio Grande do Norte, Natal, 2020.https://repositorio.ufrn.br/jspui/handle/123456789/30101Background: Roux-en-Y gastric bypass (RYGB) is among the most performed bariatric surgery techniques. One known complication of RYGB surgery is food intolerance, which may limit the intake of protein. Objective: To investigate the relationship of food intolerance after RYGB surgery with masticatory efficiency, chewing time and cycles, and consumption of protein and red meat. Methods: Casecontrol study in subjects with and without food intolerance (regurgitation and/or vomiting more than once a week), aged over 18 years-old, who underwent RYGB more than 2 years previously, with absence of no more than 2 dental units, and normal oral motor system evaluation. Masticatory efficiency was evaluated by the granulometry of red meat chewed by the study subject according to a predefined protocol using a sieving technique and classified from very poor to excellent. Protein and red meat consumption were evaluated by usual food recall and 3-day dietary diary. Mann-Whitney and chi-squared tests were used for statistical analysis. Results:The study population consisted of 24 cases (37.7±7.57 years-old, 79.2% females) and 68 controls (38.0±8.75 years-old, 61.8% females). There was a statistically significant association (p=0.001) between food intolerance and masticatory efficiency, with 58.3% of cases and 23.5% of controls showing very poor masticatory efficiency. No evidence was found of an association of food intolerance with chewing time, chewing cycles, and low protein or red meat consumption. Conclusion: The results indicate that masticatory inefficiency is one of the factors leading the patient after RYGB surgery to have difficulty in food adaptation and to complain of food intolerance.Acesso AbertoIntolerância alimentarCirurgia bariátricaMastigaçãoObesidadeComportamento alimentardoctoralThesis