First, nutrient values from T1 were used as a training set to develop an algorithm that defined upper limit values for energy intake, carbohydrates, fat, protein, fiber, sugar, cholesterol, and sodium. Nutrient intake values were calculated either manually, using the food composition database Nubel, or automatically, using the database coupled to MyFitnessPal. Methods: After carefully given instructions, 50 participants used MyFitnessPal to each complete a 4-day dietary record 2 times (T1 and T2), with 1 month in between T1 and T2. Objective: In this study, we validate the database of MyFitnessPal versus the Belgian food composition database, Nubel. The reliability of such platforms depends on the quality of the associated food database. Translational Research in Gastrointestinal DisordersÄepartment of Chronic Diseases, Metabolism and AgingÄ®mail: Digital food registration via online platforms that are coupled to large food databases obviates the need for manual processing of dietary data. JMIR Bioinformatics and Biotechnology 31 articles.JMIR Biomedical Engineering 66 articles.Journal of Participatory Medicine 76 articles.JMIR Perioperative Medicine 86 articles.JMIR Rehabilitation and Assistive Technologies 189 articles.JMIR Pediatrics and Parenting 266 articles.Interactive Journal of Medical Research 286 articles.JMIR Public Health and Surveillance 1071 articles. Journal of Medical Internet Research 7222 articles.
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