{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,12,23]],"date-time":"2025-12-23T05:26:00Z","timestamp":1766467560048,"version":"build-2065373602"},"reference-count":43,"publisher":"MDPI AG","issue":"14","license":[{"start":{"date-parts":[[2024,7,16]],"date-time":"2024-07-16T00:00:00Z","timestamp":1721088000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Nutrients"],"abstract":"<jats:p>(1) Background: Bariatric surgery has demonstrated the capacity to improve metabolic-associated fatty liver disease (MAFLD) in patients with morbid obesity. In addition, the Mediterranean diet contains anti-inflammatory, anti-oxidative, and anti-fibrotic components, promoting a beneficial effect on MAFLD. This study aimed to assess the improvement of MAFLD, specifically liver steatosis, in morbidly obese patients undergoing Roux-en-Y gastric bypass (RYGB) and following a hypocaloric Mediterranean-like diet. (2) Methods: A prospective observational pilot study of 20 patients undergoing RYGB was conducted. The participants underwent a magnetic resonance spectroscopy study 2 weeks before the surgical act and one year postoperatively to assess the percentage of lipid content (PLC). The adherence to the Mediterranean diet was determined by the KIDMED test 1 year after surgery. (3) Results: Mean baseline PLC was 14.2 \u00b1 9.4%, and one year after surgery, it decreased to 4.0 \u00b1 1.8% (p &lt; 0.001). A total of 12 patients (60%) were within the range of moderate adherence to the Mediterranean diet, whereas 8 patients (40%) showed a high adherence. The patients with high adherence to the Mediterranean diet presented significantly lower values of postoperative PLC. (4) Conclusions: Liver steatosis significantly reduces after RYGB. This reduction is further improved when associated with a high adherence to a Mediterranean diet.<\/jats:p>","DOI":"10.3390\/nu16142280","type":"journal-article","created":{"date-parts":[[2024,7,16]],"date-time":"2024-07-16T11:12:49Z","timestamp":1721128369000},"page":"2280","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":4,"title":["Improvement of Metabolic-Associated Fatty Liver Disease by Magnetic Resonance Spectroscopy in Morbidly Obese Women Undergoing Roux-en-Y Gastric Bypass, following a Postoperative Mediterranean-like Diet"],"prefix":"10.3390","volume":"16","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-8505-2605","authenticated-orcid":false,"given":"Jaime","family":"Ruiz-Tovar","sequence":"first","affiliation":[{"name":"San Juan de Dios Foundation, 28036 Madrid, Spain"},{"name":"Health Sciences Department, San Juan de Dios School of Nursing and Physical Therapy, Comillas Pontifical University, 28036 Madrid, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Carolina","family":"Llavero","sequence":"additional","affiliation":[{"name":"Obesity Unit, Garcilaso Clinic, 28010 Madrid, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3721-9626","authenticated-orcid":false,"given":"Maria","family":"Rodriguez-Ortega","sequence":"additional","affiliation":[{"name":"San Juan de Dios Foundation, 28036 Madrid, Spain"},{"name":"Health Sciences Department, San Juan de Dios School of Nursing and Physical Therapy, Comillas Pontifical University, 28036 Madrid, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Nuria M.","family":"De Castro","sequence":"additional","affiliation":[{"name":"San Juan de Dios Foundation, 28036 Madrid, Spain"},{"name":"Health Sciences Department, San Juan de Dios School of Nursing and Physical Therapy, Comillas Pontifical University, 28036 Madrid, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Maria Cristina","family":"Mart\u00edn-Crespo","sequence":"additional","affiliation":[{"name":"San Juan de Dios Foundation, 28036 Madrid, Spain"},{"name":"Health Sciences Department, San Juan de Dios School of Nursing and Physical Therapy, Comillas Pontifical University, 28036 Madrid, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Gema","family":"Escobar-Aguilar","sequence":"additional","affiliation":[{"name":"San Juan de Dios Foundation, 28036 Madrid, Spain"},{"name":"Health Sciences Department, San Juan de Dios School of Nursing and Physical Therapy, Comillas Pontifical University, 28036 Madrid, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0252-8557","authenticated-orcid":false,"given":"Ana","family":"Martin-Nieto","sequence":"additional","affiliation":[{"name":"San Juan de Dios Foundation, 28036 Madrid, Spain"},{"name":"Health Sciences Department, San Juan de Dios School of Nursing and Physical Therapy, Comillas Pontifical University, 28036 Madrid, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Gilberto","family":"Gonzalez","sequence":"additional","affiliation":[{"name":"Hospital Real San Jos\u00e9, Guadalajara 19001, Mexico"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2024,7,16]]},"reference":[{"key":"ref_1","first-page":"35","article-title":"Nonalcoholic fatty liver disease: Diagnosis and management","volume":"88","author":"Wilkins","year":"2013","journal-title":"Am. 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