{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,26]],"date-time":"2026-09-26T04:20:49Z","timestamp":1790396449391,"version":"4.1.0"},"reference-count":39,"publisher":"MDPI AG","issue":"6","license":[{"start":{"date-parts":[[2025,12,4]],"date-time":"2025-12-04T00:00:00Z","timestamp":1764806400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Lotte Research Promotion Grant"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Geriatrics"],"abstract":"<jats:p>Background\/Objectives: Although information and communication technology (ICT) offers opportunities to address challenges, evidence among frail populations is limited. We aimed to evaluate the effectiveness and feasibility of an ICT-based intervention incorporating an artificial intelligence (AI)-assisted smartphone dietary application and group communication tools to improve dietary quality and social connection among community-dwelling older adults with frailty. Methods: A non-randomized, quasi-experimental study was conducted among 29 older adults (\u226565 years) in Tokyo, Japan. Participants were assigned to the intervention (n = 11) or control (n = 18) group. The 3-month intervention included weekly photo uploads of meals via an AI-based dietary application providing automated image analysis and personalized feedback, supervised by registered dietitians, along with peer communication through a group chat. The primary outcome was dietary quality. The secondary outcomes included body weight, body mass index (BMI), skin carotenoid score, and loneliness. Results: The adjusted Japanese Food Guide Spinning Top Score at 3-month follow-up was 49.0 (standard error [SE] = 2.6) and 39.5 (SE = 2.0) in the intervention and control groups, respectively. The adjusted mean difference between groups was +9.5 (95% confidence interval: 2.3 to 16.7, p = 0.01). After using analysis of covariance for adjusting for respective baseline values, age, education status, and antihypertension drug use, no statistically significant between-group differences were observed at 3-month follow-up for any secondary outcomes. Conclusions: AI-based dietary intervention and peer communication effectively improved dietary quality among older adults, highlighting the potential of such an intervention to promote healthier eating habits in this population.<\/jats:p>","DOI":"10.3390\/geriatrics10060160","type":"journal-article","created":{"date-parts":[[2025,12,4]],"date-time":"2025-12-04T13:53:30Z","timestamp":1764856410000},"page":"160","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["An Artificial Intelligence-Assisted Smartphone Application for Improving Dietary Quality Among Frail Older Adults: A Quasi-Experimental Study"],"prefix":"10.3390","volume":"10","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-0109-6046","authenticated-orcid":false,"given":"Kayo","family":"Kurotani","sequence":"first","affiliation":[{"name":"Graduate School of Life Sciences, Showa Women\u2019s University, Tokyo 154-8533, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0003-5752-9175","authenticated-orcid":false,"given":"Hikaru","family":"Tanabe","sequence":"additional","affiliation":[{"name":"Graduate School of Informatics and Engineering, The University of Electro-Communications, Tokyo 182-8585, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0431-183X","authenticated-orcid":false,"given":"Keiji","family":"Yanai","sequence":"additional","affiliation":[{"name":"Graduate School of Informatics and Engineering, The University of Electro-Communications, Tokyo 182-8585, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8597-8512","authenticated-orcid":false,"given":"Kazunori","family":"Sakamoto","sequence":"additional","affiliation":[{"name":"Faculty of Information and Management, Tokyo Online University, Tokyo 160-0023, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2098-8840","authenticated-orcid":false,"given":"Kazunori","family":"Ohkawara","sequence":"additional","affiliation":[{"name":"Graduate School of Informatics and Engineering, The University of Electro-Communications, Tokyo 182-8585, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2025,12,4]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","unstructured":"Lorenzo-L\u00f3pez, L., Maseda, A., de Labra, C., Regueiro-Folgueira, L., Rodr\u00edguez-Villamil, J.L., and Mill\u00e1n-Calenti, J.C. 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Act."}],"container-title":["Geriatrics"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/2308-3417\/10\/6\/160\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,12,4]],"date-time":"2025-12-04T14:34:46Z","timestamp":1764858886000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/2308-3417\/10\/6\/160"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2025,12,4]]},"references-count":39,"journal-issue":{"issue":"6","published-online":{"date-parts":[[2025,12]]}},"alternative-id":["geriatrics10060160"],"URL":"https:\/\/doi.org\/10.3390\/geriatrics10060160","relation":{},"ISSN":["2308-3417"],"issn-type":[{"value":"2308-3417","type":"electronic"}],"subject":[],"published":{"date-parts":[[2025,12,4]]}}}