{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,30]],"date-time":"2026-07-30T18:09:02Z","timestamp":1785434942174,"version":"3.56.0"},"reference-count":18,"publisher":"MDPI AG","issue":"11","license":[{"start":{"date-parts":[[2026,5,30]],"date-time":"2026-05-30T00:00:00Z","timestamp":1780099200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/100006108","name":"National Center for Advancing Translational Science","doi-asserted-by":"crossref","award":["UL1TR001881"],"award-info":[{"award-number":["UL1TR001881"]}],"id":[{"id":"10.13039\/100006108","id-type":"DOI","asserted-by":"crossref"}]},{"award":["UL1TR001881"],"award-info":[{"award-number":["UL1TR001881"]}],"id":[{"id":"https:\/\/ror.org\/04pw6fb54","id-type":"ROR","asserted-by":"publisher"}]},{"name":"MyFitnessPal research"},{"name":"Center for Human Nutrition department"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Nutrients"],"abstract":"<jats:p>Background\/Objectives: This study aimed to evaluate the associations between MyFitnessPal usage, a widely used smartphone application, and weight management outcomes among U.S. adults, and to examine factors associated with clinically significant weight loss. Methods: Data from 1359 users who set weight loss goals and maintained consistent app engagement over 120 days were analyzed. Demographic characteristics, app engagement patterns, and dietary intake were compared between users who did and did not achieve clinically significant weight loss. Results: Nearly half (48.5%) of participants achieved clinically significant weight loss (\u22655% of body weight), with success rates varying notably across age groups. App engagement was strongly associated with weight-loss success, with users maintaining detailed food logs achieving substantially higher success rates than the full cohort. Multivariable logistic regression identified daily app engagement as the significant predictor of weight-loss success, followed by lower carbohydrate intake, higher initial weight, and younger age. Conclusions: These findings indicate that greater engagement with MyFitnessPal is associated with favorable weight management outcomes and suggest that digital health platforms may be a scalable intervention for obesity prevention and treatment.<\/jats:p>","DOI":"10.3390\/nu18111766","type":"journal-article","created":{"date-parts":[[2026,6,1]],"date-time":"2026-06-01T12:19:42Z","timestamp":1780316382000},"page":"1766","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Weight Loss Outcomes Among MyFitnessPal Users: Behavioral and Dietary Predictors of Success"],"prefix":"10.3390","volume":"18","author":[{"given":"Bingling","family":"Wang","sequence":"first","affiliation":[{"name":"Statistics & Data Science, UCLA, 8125 Math Sciences Bldg. Box 951554, Los Angeles, CA 90095, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Lucia Y.","family":"Chen","sequence":"additional","affiliation":[{"name":"Statistics & Data Science, UCLA, 8125 Math Sciences Bldg. Box 951554, Los Angeles, CA 90095, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hwan","family":"Cho","sequence":"additional","affiliation":[{"name":"Statistics & Data Science, UCLA, 8125 Math Sciences Bldg. Box 951554, Los Angeles, CA 90095, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0940-7662","authenticated-orcid":false,"given":"Jieping","family":"Yang","sequence":"additional","affiliation":[{"name":"Center for Human Nutrition, David Geffen School of Medicine at UCLA, 1000 Veteran Ave, Los Angeles, CA 90095, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Chi-Hong","family":"Tseng","sequence":"additional","affiliation":[{"name":"Department of Medicine Statistics Core, David Geffen School of Medicine at UCLA, 1100 Glendon Avenue, 8th Floor, Los Angeles, CA 90024, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8662-4310","authenticated-orcid":false,"given":"Zhaoping","family":"Li","sequence":"additional","affiliation":[{"name":"Center for Human Nutrition, David Geffen School of Medicine at UCLA, 1000 Veteran Ave, Los Angeles, CA 90095, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2026,5,30]]},"reference":[{"key":"ref_1","unstructured":"World Health Organization (2025, December 08). 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Public Health, 22.","DOI":"10.3390\/ijerph22071152"},{"key":"ref_15","doi-asserted-by":"crossref","first-page":"e63313","DOI":"10.2196\/63313","article-title":"Behavior Change Resources Used in Mobile App-Based Interventions Addressing Weight, Behavioral, and Metabolic Outcomes in Adults With Overweight and Obesity: Systematic Review and Meta-Analysis of Randomized Controlled Trials","volume":"13","author":"Li","year":"2025","journal-title":"JMIR Mhealth Uhealth"},{"key":"ref_16","doi-asserted-by":"crossref","first-page":"478","DOI":"10.1002\/oby.23088","article-title":"Self-Monitoring via Digital Health in Weight Loss Interventions: A Systematic Review Among Adults with Overweight or Obesity","volume":"29","author":"Patel","year":"2021","journal-title":"Obesity"},{"key":"ref_17","doi-asserted-by":"crossref","first-page":"e13542","DOI":"10.1111\/obr.13542","article-title":"Is the uptake, engagement, and effectiveness of exclusively mobile interventions for the promotion of weight-related behaviors equal for all? 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