Do Bariatric Patients Follow Dietary and Lifestyle Recommendations during the First Postoperative Year?

Shiri Sherf Dagan, Andrei Keidar, Asnat Raziel, Nasser Sakran, David Goitein, Oren Shibolet, Shira Zelber-Sagi

Research output: Contribution to journalArticlepeer-review

51 Scopus citations


Background: Data on adherence to postoperative lifestyle recommendations by bariatric patients are scarce. Thus, the aim of this study was to evaluate adherence to selected recommendations during the first year following laparoscopic sleeve gastrectomy (LSG) surgery. Methods: A prospective cohort study with 12 months of follow-up on 100 LSG patients was conducted. Data were collected at baseline and at 3 (M3), 6 (M6), and 12 (M12) months post-surgery and included anthropometrics, biochemical tests, food intake, food tolerance, common surgery-related side effects, physical activity (PA), supplementation, and number of follow-up meetings with a dietitian. Results: Data were available for 77 patients (57.1% women, mean age 43.1 ± 9.3 years and preoperative BMI 42.1 ± 4.8 kg/m2). Only a minority of the patients adhered to the recommended protein intake ≥60 g/day at all time points (≤40.3%) and ≥6 meetings with a dietitian at M12 (41.6%). Half of the patients performed ≥150 min/week of PA at all time points (≤50.6%) as recommended. PA of ≥150 min/week was associated with better lipid and glucose changes at M6 and M12 (P ≤ 0.044). Most of the patients adhered to the recommended supplementation at all time points (≥57.1%). Adherence to supplementation at M12 was significantly associated with higher serum levels of folic acid, iron, hemoglobin, and vitamins D and B12 (P ≤ 0.056 for all). Adherence to all recommendations was not significantly associated with excess weight loss ≥60% at M12 (P ≥ 0.195 for all). Conclusion: Bariatric patients have medium to high adherence to the major lifestyle recommendations during the first year following LSG; however, adherence to those recommendations was not related to better weight loss at short-term follow-up. Adherence to recommended supplementation was associated with better micronutrient status 1 year postoperatively.

Original languageEnglish
Pages (from-to)2258-2271
Number of pages14
JournalObesity Surgery
Issue number9
StatePublished - 1 Sep 2017
Externally publishedYes

Bibliographical note

Publisher Copyright:
© 2017, Springer Science+Business Media New York.


This study was supported in part by grant no. 3-10470 from the Chief Scientist Office of the Ministry of Health, Israel.

FundersFunder number
Ministry of Health, State of Israel


    • Bariatric surgery
    • Dietary supplements
    • Food intake
    • Micronutrient deficiencies
    • Physical activity


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