{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,27]],"date-time":"2026-10-27T00:18:42Z","timestamp":1793060322599,"version":"4.5.0"},"reference-count":123,"publisher":"Wiley","issue":"6","license":[{"start":{"date-parts":[[2025,7,28]],"date-time":"2025-07-28T00:00:00Z","timestamp":1753660800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Clinical Obesity"],"published-print":{"date-parts":[[2025,12]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:p>\n                    Bariatric surgery is the most clinically\u2010 and cost\u2010effective intervention for severe obesity. However, without adequate follow\u2010up, it can lead to nutritional deficiencies. Patients require life\u2010long nutritional supplements and follow\u2010up to prevent nutritional deficiencies from developing. This rapid systematic review is the first synthesis of case reports of patients with vitamin and micronutrient deficiencies at least 2\u2009years following bariatric surgery, the point at which patients are typically discharged from specialist bariatric services. Eighty\u2010three cases (74 studies) met inclusion criteria. Female patients accounted for 84% of the reports. Roux\u2010en\u2010Y Gastric Bypass (RYGB) was the most common procedure to have been performed, followed by biliopancreatic diversion (BPD). The most frequently reported deficiencies were vitamin A (\n                    <jats:italic>n<\/jats:italic>\n                    \u2009=\u200915), copper (\n                    <jats:italic>n<\/jats:italic>\n                    \u2009=\u200914) and vitamin D (\n                    <jats:italic>n<\/jats:italic>\n                    \u2009=\u200923). In some cases, vitamin replacement led to symptom resolution, but some preceded permanent disability or death. Fifty\u2010one case reports detailed factors contributing to the development of the deficiency. These could be divided into patient factors or health care factors and provide areas to target interventions, including support to adhere to supplementation, appropriate follow\u2010up, and health professional awareness.\n                  <\/jats:p>","DOI":"10.1111\/cob.70035","type":"journal-article","created":{"date-parts":[[2025,7,28]],"date-time":"2025-07-28T10:59:20Z","timestamp":1753700360000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":14,"title":["Nutritional Deficiencies Following Bariatric Surgery: A Rapid Systematic Review of Case Reports of Vitamin and Micronutrient Deficiencies Presenting More Than Two Years Post\u2010Surgery"],"prefix":"10.1111","volume":"15","author":[{"given":"Sophie","family":"Haughton","sequence":"first","affiliation":[{"name":"Sheffield Teaching Hospitals, Northern General Hospital  Sheffield UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0805-0200","authenticated-orcid":false,"given":"Sarah","family":"Gentry","sequence":"additional","affiliation":[{"name":"Norwich Medical School University of East Anglia  Norfolk UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7184-269X","authenticated-orcid":false,"given":"Helen M.","family":"Parretti","sequence":"additional","affiliation":[{"name":"Norwich Medical School University of East Anglia  Norfolk UK"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2025,7,28]]},"reference":[{"key":"e_1_2_9_2_1","unstructured":"World Health Organization \u201cObesity and Overweight \u201d(2024)."},{"key":"e_1_2_9_3_1","unstructured":"Office for Health Improvement and Disparities \u201cObesity Profile: Short Statistical Commentary May 2023 \u201dLondon: OHID (2023)."},{"key":"e_1_2_9_4_1","volume-title":"Statistics on Obesity, Physical Activity and Diet, England, 2020","author":"Digital N. 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