Nutrition, Health Behavior and Obesity Research Lab

1. Elazary R, Abu-Gazala M, Ben-Porat T, Kedar A, Mintz Y. Early outcome after Laparoscopic Sleeve Gastrectomy of type two diabetes mellitus patients with extremely elevated glycated hemoglobin (HbA1c). International Journal of Surgery. 2013;11(9):869-71.
   https://pubmed.ncbi.nlm.nih.gov/23924907/  

2. Ben-Porat T, Elazary R, Yuval J B, Wieder A, Khalaileh A, Weiss R. Nutritional deficiencies following sleeve gastrectomy – can they be predicted pre-operatively? Surgery for Obesity and Related Diseases. 2015; S1550-7289(15).
   https://pubmed.ncbi.nlm.nih.gov/25857443/ 

3. Ben-Porat T, Sherf-Dagan S, Goldenshluger A, Yuval J B, Elazary R. Gastrointestinal phytobezoar following bariatric surgery: Systematic review. Surgery for Obesity and Related Diseases. 2016. 12(9):1747-1754.  

https://pubmed.ncbi.nlm.nih.gov/27989523/   

4. Ben-Porat T, Elazary R, Goldenshluger A, Sherf Dagan S, Mintz Y, Weiss R. Nutritional deficiencies four years after Laparoscopic Sleeve Gastrectomy- are supplements required for a lifetime? Surgery for Obesity and Related Diseases. 2017;13(7):1138-1144.
   https://pubmed.ncbi.nlm.nih.gov/28416186/

5. Goldenshluger M, Goldenshluger A, Keinan-Boker L, Cohen MJ, Ben-Porat T, Gerasi H, Amun M, Abu-Gazala M, Khalaileh A, Mintz Y, Elazary R. Postoperative outcomes, weight loss predictors, and late gastrointestinal symptoms following Laparoscopic Sleeve Gastrectomy. Journal of Gastrointestinal Surgery. 2017;21(12):2009-2015. 

https://pubmed.ncbi.nlm.nih.gov/28971291/  

6. Sherf-Dagan S, Goldenshluger A, Balog I, Schweiger C, Kessler Y, Kowen G, Ben-Porat T, Sinai T. Nutritional recommendations for adult bariatric surgery patients: Clinical practice. Advances in Nutrition. 2017; 8(2):382-394.
   https://pubmed.ncbi.nlm.nih.gov/28298280/   

7. Ben-Porat T, Long-term nutritional impact of sleeve gastrectomy. Surgery for Obesity and Related Diseases. 2017;13(10):1673-1675.
   https://pubmed.ncbi.nlm.nih.gov/28888795/

8. Goldenshluger A, Elazary R, Cohen MJ, Goldenshluger M, Ben-Porat T, Nowotni J, Geraisi H, Amun M, Pikarsky AJ, Keinan-Boker L. Predictors for Adherence to Multidisciplinary Follow-Up Care after Sleeve Gastrectomy. Obesity Surgery. 2018; 28:3054–3061.
   https://pubmed.ncbi.nlm.nih.gov/29774453/

9. Sherf Dagan S, Hod K, Mardy-Tilbor L, Buch A, Regev Z, Ben-Porat T, Sakran N, Goitein D, Raziel A. Health and nutritional status of vegetarian candidates for bariatric surgery and practical recommendations. Obesity Surgery.2018;28(1):152-160.
   https://pubmed.ncbi.nlm.nih.gov/28699068/  

10. Sherf-Dagan S, Hod K, Mardy-Tilbor L, Gliksman S, Ben-Porat T, Sakran N, Zelber-Sagi S, Goitein D, Raziel A. The effect of pre-surgery information online lecture on nutrition knowledge and anxiety among bariatric surgery candidates. Obesity Surgery. 2018;28(7):1876-1885.
    https://pubmed.ncbi.nlm.nih.gov/29455404/ 

11. Ben-Porat T, Elazary R, Sherf-Dagan S, Goldenshluger A, Brodie R, Mintz Y, Weiss R. Bone health following bariatric surgery: Implications for management strategies to attenuate bone loss. Advances in Nutrition. 2018; 9(2):114-127.
    https://pubmed.ncbi.nlm.nih.gov/29659692/

12. Kessler Y, Adelson D, Mardy-Tilbor L, Ben-Porat T, Szold A, Goitein D, Sakran N, Raziel A, Sherf-Dagan S. Nutritional status following One Anastomosis Gastric Bypass. Clinical Nutrition. 2019; S0261-5614(19)30121-9.   

https://pubmed.ncbi.nlm.nih.gov/30922792/ 

13. Ben-Porat T, Yuval JB, Elchalal U, Shushan A, Sakran N, Elazary R, Rottenstreich A. Reproductive health counseling, attitudes and practices: A cross-sectional survey among bariatric surgeons. Surgery for Obesity and Related Diseases. 2019;15(12):2101-2106.
    https://pubmed.ncbi.nlm.nih.gov/31604617/

14. Ben-Porat T, Weiss-Sadan A, Rottenstreich A, Sherf-Dagan S, Schweiger C, Mor Yosef-Levi I, Weiner D, Azulay O, Sakran N, Harari R, Elazary R. Nutritional management for chronic kidney disease patients who undergo bariatric surgery: A narrative review. Advances in Nutrition. 2019;10(1):122-132.                                        

https://pubmed.ncbi.nlm.nih.gov/30753268/ 

15. Sherf-Dagan s, Goldenshluger A, Azran C, Sakran N, Sinai T, Ben-Porat T. Vitamin K- what is known for the bariatric surgery patients: A systematic review. Surgery for Obesity and Related Diseases. 2019;15(8):1402-1413. 

https://pubmed.ncbi.nlm.nih.gov/31353233/ 

16. Rottenstreich A, Elazary R, Goldenshluger A, Pikarski A J, Elchalal U, Ben- Porat T. Maternal nutritional status and related pregnancy outcomes following bariatric surgery: A systematic review. Surgery for Obesity and Related Diseases. 2019; 15(2):324 32.
    https://pubmed.ncbi.nlm.nih.gov/30658948/  

17. Ben-Porat T, Weiss R, Nabulsi N, Maayani A, Khalaileh A, Sherf-Dagan S, Abed S, Brodie R, Harari R, Mintz Y, Pikarsky AJ, Elazary R. Nutritional deficiencies in patients with severe obesity prior to bariatric surgery- what should be the focus during the preoperative assessment? Journal of the Academy of Nutrition and Dietetics. 2020;5: 874-884.
    https://pubmed.ncbi.nlm.nih.gov/31892499/  

18. Goldenshluger A, Elazary R, Ben-Porat T, Geraisi AF, Levin G, Rottenstreich A. Knowledge, attitudes and barriers of patients during pregnancy after bariatric surgery. Surgery for Obesity and Related Diseases. 2020;16 (7): 925-930.
    https://pubmed.ncbi.nlm.nih.gov/32317215/

19. Ben-Porat T, Elazary R, Sherf-Dagan S, Weiss R, Levin G, Rottenstreich M, Rottenstreich A. Factors associated with the development of anemia during pregnancy after sleeve gastrectomy. Obesity Surgery. 2020;30(10):3884-3890.
    https://pubmed.ncbi.nlm.nih.gov/32500273/

20. Ben-Porat T, Sherf-Dagan S, Elazary R. Authors' Response: Nutritional deficiencies in patients with severe obesity prior to bariatric surgery- what should be the focus during the preoperative assessment? Journal of the Academy of Nutrition and Dietetics. 2020;120(9):1453-1454.
    https://pubmed.ncbi.nlm.nih.gov/32829775/

21. Kaniel O, Szold A, Sakran N, Kessler Y, Langer P, Ben-Porat T, Moran-Gilad J, Sherf-Dagan S. The rise of one anastomosis gastric bypass- Surgeons and dietitians' insights. Updates in Surgery. 2021; 73:649–656.  

https://pubmed.ncbi.nlm.nih.gov/32451836/ 

22. Rottenstreich A, Levin G, Ben-Porat T, Rottenstreich M, Meyer R, Elazary R. Extremely early pregnancy (<6 months) after sleeve gastrectomy: Maternal and perinatal outcomes. Surgery for Obesity and Related Diseases. 2021;17(2):356-362.
    https://pubmed.ncbi.nlm.nih.gov/33268326/  

23. Harari R, Toren O, Tal Y, Ben-Porat T. Food allergy safety: A descriptive report of changing policy in a single large medical center. Israel Journal of Health Policy Research. 2021;10(1):32. 

https://pubmed.ncbi.nlm.nih.gov/33941273/ 

24. Asakly S, Magen-Rimon R, Ighbariya A, Marjih-Shallufi M, Ben-Porat T, Ravid S, Eran A, Gepstein V, Hanna S, Weiss R. Bariatric surgery associated myelopathy. Obesity Facts. 2021;14(4):431-439.  

https://pubmed.ncbi.nlm.nih.gov/34311464/  

25. Ben-Porat T, Weiss R Sherf-Dagan S, Khalaileh A, Rottenshtrich A, Abu Gazala M, Kaluti D, Ben-Anat ZT, Mintz Y, Sakran N, Elazary R. Food addiction and binge eating during one year following sleeve gastrectomy: prevalence and implications for postoperative outcomes. Obesity Surgery. 2021;31(2):603-611.                                         

https://pubmed.ncbi.nlm.nih.gov/33000357/ 

26. Ben-Porat T, Weiss R Khalaileh A, Abu Gazala M, Kaluti D, Mintz Y, Sherf-Dagan S, Yackobovitch-Gavan M, Rottenshtrich A, Brodie R, Pikarsky AJ, Elazary R. The impact of preoperative vitamin administration on skeletal status following sleeve gastrectomy in young and middle-aged women: a randomized controlled trial. International Journal of Obesity. 2021 Sep;45(9):1925-1936.
    https://pubmed.ncbi.nlm.nih.gov/33980995/

27. Ben-Porat T, Mashin L, Kaluti D, Goldenshluger A, Shufanieh J, Khalaileh A, Abu Gazala M, Rottenstreich A, Elazary R. Weight loss outcomes and lifestyle patterns following sleeve gastrectomy: an eight-year retrospective study of 212 patients. Obesity Surgery. 2021;31(11), 4836-4845.
    https://pubmed.ncbi.nlm.nih.gov/34403078/

28. Sherf-Dagan S, Buch A, Ben-Porat T, Sakran S, Sinai T. Vitamin E status among bariatric surgery patients: A systematic review. Surgery for Obesity and Related Diseases. 2021;17(4):816-830.  

https://pubmed.ncbi.nlm.nih.gov/33323330/                                                                                                   

29. Sherf-Dagan S, Sinai T, Goldenshluger A, Balog I, Kessler Y, Schweiger C, Ben-Porat T. Nutritional assessment, preparation and education for adult bariatric surgery candidates: Clinical practice.  Advances in Nutrition. 2021;12(3):1020-1031.
    https://pubmed.ncbi.nlm.nih.gov/33040143/                                        

30. Ben-Porat T, Košir U, Peretz S, Sherf-Dagan S, Stojanovic J, Sakran N. Food addiction and binge eating impact on weight loss outcomes two years following sleeve gastrectomy surgery. Obesity Surgery. 2022;32(4):1193-1200.      

https://pubmed.ncbi.nlm.nih.gov/35048249/

31. Ben-Porat T, Peretz S, Rottenstreich A, Weiss R, Shalit O, Elazary R, Abu Gazala M. Changes in Bone mineral density following Laparoscopic Sleeve Gastrectomy: Two-years outcomes. Surgery for Obesity and Related Diseases. 2022;18(3):335-34.
    https://pubmed.ncbi.nlm.nih.gov/35058132/

32. Ben-Porat T, Bacon SL. Comment on: Nutrition for pregnancy after metabolic and bariatric surgery. Surgery for Obesity and Related Diseases. 2022;18(6):830-831.
    https://pubmed.ncbi.nlm.nih.gov/35514001/                                                                                                                                                          

33. Ben-Porat T, Alberga A, Audet MC, Belleville S, Cohen T, Garneau PY, Lavoie KL, Marion P, Mellah S, Pescarus R, Rahme E, Santosa S, Studer AS, Vuckovic D, Woods R, Yousefi R, Bacon SL, for the EMRACE Study Team. Understanding the impact of radical changes in diet and the gut microbiota on brain function and structure: Rationale and design of the EMBRACE study. Surgery for Obesity and Related Diseases. 2023; 19(9):1000-1012.
    https://pubmed.ncbi.nlm.nih.gov/37088645/   

34. Fortin A, Lavoie KB, Ben-Porat T, Yousefi R, Pelaez S, Studer AS, Bacon SL, for the INTER-Change team. Co-Construction of Adjunct Behavioral Interventions to Bariatric Surgery: The INTER-Change Program. Health Psychology. 2023;42(5):343-352.
    https://pubmed.ncbi.nlm.nih.gov/37036698/  

35. Sherf-Dagan S, Biton R, Ribeiro R, Kessler Y, Raziel A, Rossoni C, Marc-Hernandez A, Kais H, Bragança R, Santos Z, Goitein D, Viveiros O, Graham YNH, Mahawar KK, Sakran N, Ben-Porat T. Nutritional and Lifestyle Behaviors Reported Following One Anastomosis Gastric Bypass Based on a Multicenter Study. Nutrients. 2023:15(6);1515. 

https://pubmed.ncbi.nlm.nih.gov/36986245/  

36. Ben-Porat T, Sherf-Dagan S. Nutritional interventions for patients with severe obesity seeking bariatric surgery. Nutrients. 2023:15(3);515.
    https://pubmed.ncbi.nlm.nih.gov/36771222/ 

37. Ben-Porat T, Sherf-Dagan S, Bacon SL. Paired editorial: Variation and Outcomes of Liver Reducing Dietary Regimens prior to Bariatric Surgery: A National Retrospective Cohort Study. Surgery for Obesity and Related Diseases. 2023:19(2), 102-108.
    https://pubmed.ncbi.nlm.nih.gov/36567233/ 

38. Sherf-Dagan S, Biton R, Ribeiro R, Kessler Y, Raziel A, Ben-Porat T, Rossoni C, Marc-Hernandez A, Kais H, Bragança R, Santos Z, Goitein D, Viveiros O, NH Graham Y, Mahawar K, Sakran N. 2023. Gastrointestinal reported outcomes following One Anastomosis Gastric Bypass among patients from two different countries. Expert Review of gastroenterology & Hepatology. 2023;17(6):635-643. https://pubmed.ncbi.nlm.nih.gov/37165861/                                                                                                                          

39. Childhood maltreatment among patients undergoing bariatric surgery: Implications for weight loss, depressive symptoms and eating behavior. Nutrients. 2023:15(9);2046.
    https://pubmed.ncbi.nlm.nih.gov/37432188/

40. Stokar J, Ben-Porat T, Kaluti D, Abu-Gazhala M, Elazari R, Szalat A. Trabecular Bone Score Preceding and during a 2-Year Follow-Up after Sleeve Gastrectomy: Pitfalls and New Insights. Nutrients. 2023;15(15):3481.   

https://pubmed.ncbi.nlm.nih.gov/37571418/ 

41. Ben-Porat T, Yousefi R, Lavoie KB, Stojanovic J, Bacon SL. (2023). Completeness of intervention reporting of adjunct nutritional treatments to bariatric surgery: Effect of TIDieR checklist and guide. International Journal of Obesity. 2024: 48(7):901-912. https://pubmed.ncbi.nlm.nih.gov/38459257/                                                                                                                                              

42. Subhi Hs, Abu Gazala M, Manor O, Elazary R, Ben-Porat T. Effect of a Six-Month Physical Activity Behavioral Intervention Following Bariatric Surgery: a randomized controlled trial. Surgery for Obesity and Related Diseases. 2024;20(11):1072-1083.
    https://pubmed.ncbi.nlm.nih.gov/39256111/

43. Parrott J, Parrott JS, Benson-Davies, Sherf-Dagan S, O'Kane M, Ben-Porat T, M, Leite SF, Moize V. Show me the evidence to guide nutrition practice: scoping review of macronutrient dietary interventions after metabolic and bariatric surgery. Obesity Reviews. 2024:25(12), e13831.
    https://pubmed.ncbi.nlm.nih.gov/39262138/   

44. Yousefi R, Ben-Porat T, Vieira AM, Lavoie KL, Bacon SL, for the REBORN study team. Who gains the most quality-of-life benefits from metabolic and bariatric surgery: findings from the prospective REBORN cohort study. Surgery for Obesity and Related Diseases. 2024:20(12),1297-1305.
    https://pubmed.ncbi.nlm.nih.gov/39304457/ 

45. Yousefi R, Ben-Porat T, Lavoie KB, Bacon SL for the REBORN study team. Understanding the Components of Eating Behaviour-Focused Weight Management Interventions Adjunct to Metabolic Bariatric Surgery: Systematic Review of Published Literature. Current Obesity Reports. 2025:14(1);1-14.
    https://pubmed.ncbi.nlm.nih.gov/39753946/

46. Ben-Porat T, Lahav Y, Cohen TR, Bacon SL, Buch A, Moizé V, Sherf-Dagan S. Is there a need to reassess protein intake recommendations following metabolic bariatric surgery? Current Obesity Reports 14.1 (2025): 1-7.  

https://pubmed.ncbi.nlm.nih.gov/39878797/  

47. Rottenstreich A, Elazary R, Ben-Porat T, Sherf Dagan S, Beglaibter N, Grinbaum R. Pregnancy Outcomes After One Anastomosis Gastric Bypass. 2025. Obesity Surgery. Accepted for publication, in press (06/2025). Online ahead of print.
    https://pubmed.ncbi.nlm.nih.gov/40553318/ 

48. Sherf-Dagan S, Wright C, Heusschen L, Alceste D, Bond D, Ben-Porat T. Bridging the Gap: Evaluating Tools for Adherence to Dietary-Related Behavioral Recommendations After Metabolic Bariatric Surgery-A Scoping Review. Accepted for publication, in press (07/2025). Online ahead of print.
    https://pubmed.ncbi.nlm.nih.gov/40784733/ 

49. Badrieh A, Elazary R, Ben-Porat T, Sherf-Dagan S, Rottenstreich A. Reproductive-health counseling, menstruation, contraception and conception after sleeve gastrectomy: A cross-sectional study. Surgery for Obesity and Related Diseases. Accepted for publication, in press (08/2025). Online ahead of print.  https://pubmed.ncbi.nlm.nih.gov/40975647/

50. Ben-Porat T, Sherf-Dagan S, Côté M, Miner CJ, Buch A. Nutritional Challenges Accompanied by Incretin-Based Obesity Management Medications: Implications for Clinical Practice. 2025. Advances in Nutrition. Accepted for publication, in press (09/2025). Online ahead of print.   https://pubmed.ncbi.nlm.nih.gov/40975496/