Most of qualitative dietary changes observed one year post-bariatric surgery can be achieved with a preoperative dietary intervention.
BACKGROUND AND OBJECTIVES
Bariatric surgery (BS) leads to several changes in nutritional habits that can be attributed to different mechanisms. Some of these changes could be achievable with a preoperative nutritional intervention. The objective was to evaluate dietary modifications during the preoperative and postoperative periods of BS.


METHODS
Prospective observational study of patients who underwent BS between 2010 and 2014 at the Hospital del Mar; 60 consecutive patients were included. Food consumption was measured by a validated food-frequency questionnaire at inclusion in the bariatric surgery program, after preoperative nutritional intervention, and one year after surgery. Generalized estimating equation models were used to assess differences in food group intake during follow up.


RESULTS
Energy intake significantly decreased from inclusion to 1 year of surgery (p=0.003). After the preoperative intervention and prior to surgery, there was an increase in intake of nuts, vegetables, poultry and rabbit, fruit, fish and skimmed milk products and a decrease in bread, soft drinks and pastry. At one year post-surgery, a continued decrease in the consumption of bread and soft drinks and an increase in nuts was observed (linear non-quadratic trend). Consumption of fruit, pastry, fish and skimmed milk products remained stable showing a linear and quadratic trend. Vegetables and poultry and rabbit increased in the preoperative period and decreased after surgery, showing a quadratic but not linear trend.


CONCLUSIONS
a preoperative nutritional intervention in morbidly obese patients can associate favorable dietary changes that are mostly maintained one year after bariatric surgery.
['Benaiges|David|D|', 'Parri|Alejandra|A|', 'Subirana|Isaac|I|', 'Pedro-Botet|Juan|J|', 'Villatoro|Montserrat|M|', 'Ramon|Jose M|JM|', 'Climent|Elisenda|E|', 'Flores Le Roux|Juana A|JA|', 'Goday|Alberto|A|']
D000328:Adult D000818:Animals D050110:Bariatric Surgery D001939:Bread D002253:Carbonated Beverages D004032:Diet D004034:Diet Surveys D004435:Eating D002149:Energy Intake D005260:Female D005399:Fishes D005638:Fruit D006801:Humans D008297:Male D008460:Meat D018977:Micronutrients D008875:Middle Aged D008892:Milk D009754:Nuts D011300:Preoperative Care D011446:Prospective Studies D011817:Rabbits D013997:Time Factors D014675:Vegetables D015431:Weight Loss
Preoperative Bariatric surgery Food groups Cirugía bariátrica Dietary intake Grupos de alimentos Ingesta dietética Micronutrientes Micronutrients