title: [Evolution and quality of the diet of women with severe and morbid obesity undergoing gastric bypass].
abstract: Evolution and quality of the diet of women with severe and morbid obesity undergoing gastric bypass. The objective of this study was to evaluate the changes of dietary intake and quality of the diet in patients undergoing gastric bypass. In forty-four women with severe and morbid obesity it was assessed their nutrient intakes before and 6, 12, and 18 months after gastric bypass by using three-day food records. Vitamin and mineral intakes from supplements were strictly controlled though personalized records. With the exceptions of calcium and vitamin A, energy and nutrient intakes were significantly decreased at 6, 12, and 18 month after bypass compared to the pre-surgery period. Dietary intakes of calcium, iron, zinc, copper, folic acid, vitamin C, and vitamin E were below 100% of adequacy from the 6th month after the surgery and thereafter. This situation is reverted when nutrient intakes supplied by supplements are taken into account. Although a "U" shape trend was observed in the nutrient intakes results during the experimental period, in most cases the differences between the observed values at month 12 and 18 were not significant. In conclusion, these patients had important reductions of their energy and nutrient intakes as result of gastric bypass. Routine supplements may correct this situation, nevertheless, the anatomical alterations inherent to this type of surgery may cause that total nutrient intakes reaching adequacy values slightly above 100%, may not necessarily be able to avoid the development of nutritional deficiencies.
authors.affiliation: Departamento de Nutrición, Facultad de Medicina, Universidad de Chile, Santiago, Chile.
authors.forename: Annabella
authors.initials: A
authors.lastname: Rebolledo
authors.forename: Karen
authors.initials: K
authors.lastname: Basfi-fer
authors.forename: Pamela
authors.initials: P
authors.lastname: Rojas
authors.forename: Juana
authors.initials: J
authors.lastname: Codoceo
authors.forename: Jorge
authors.initials: J
authors.lastname: Inostroza
authors.forename: Fernando
authors.initials: F
authors.lastname: Carrasco
authors.forename: Manuel
authors.initials: M
authors.lastname: Ruz
mesh_terms: D000293:Adolescent; D000328:Adult; D000704:Analysis of Variance; D002677:Chile; D004032:Diet / Q000592:standards*; D019587:Dietary Supplements; D002149:Energy Intake; D005260:Female; D015390:Gastric Bypass; D006801:Humans; D044342:Malnutrition / Q000209:etiology; D008875:Middle Aged; D008903:Minerals / Q000008:administration & dosage; D009751:Nutritional Requirements; D009752:Nutritional Status; D009767:Obesity, Morbid / Q000150:complications / Q000601:surgery*; D014815:Vitamins / Q000008:administration & dosage; D055815:Young Adult
chemical_list: D008903:Minerals; D014815:Vitamins