Can individuals with celiac disease identify gluten-free foods correctly?. (April 2020)

• Record Type: Journal Article
• Authors: Gutowski, Emily D.; Weiten, Dayna; Green, Kathy H.; Rigaux, Lisa N.; Bernstein, Charles N.; Graff, Lesley A.; Walker, John R.; Duerksen, Donald R.; Silvester, Jocelyn A.
• Is Part Of: Clinical nutrition ESPEN. Volume 36(2020)
• Page Start: 82
• Page End: 90
• Publication Date: 2020-04
• Subjects: Celiac disease -- Gluten-free diet -- Treatment adherence and compliance -- Food labeling -- Follow-up; Nutritionally induced diseases -- Periodicals; Metabolism -- Disorders -- Periodicals; 616.39005
• DOI: 10.1016/j.clnesp.2020.01.012
• Languages: English
• ISSNs: 2405-4577

Abstract

Summary: Background & aims: Patients with celiac disease (CD) often report inadvertent gluten exposures and challenges reading labels. The most common cause of non-responsive CD is gluten exposure. We aimed to assess whether recently diagnosed CD patients can determine whether a food is gluten-free based on labeling, and to assess skills over time. A secondary aim was to identify factors associated with label reading proficiency. Methods: Inception cohort with follow-up at 6, 12, and 24 months after diagnosis. Participants were asked to determine whether 25 food items were gluten-free based on labeling information. Diet adherence was assessed using the Celiac Diet Assessment Tool (CDAT) and the Gluten-Free Eating Assessment Tool (GF-EAT). 144 adults with newly diagnosed celiac disease were enrolled. The initial quiz at 6 months was completed by 83%. Quizzes were completed by 72% at 12 months and 70% at 24 months. Results: Median overall accuracy scores were: 23/25, 24/25 and 21/25 at 6, 12 and 24 months respectively. Gluten-free products with explicit "gluten-free" claims had the fewest errors. Quiz scores were not correlated with tTG IgA levels, or CDAT or GF-EAT scores. Diet adherence was generally good (>85% with CDAT <13 suggesting adequate GFD adherence); however, at 24 months, only 11% reported no gluten exposure. Conclusions: CD patients may be unable to consistently choose gluten-free foods based on product labeling. Explicit identification of gluten-free products may be helpful. Label reading ability appears stable over time. Further studies are needed to evaluate whether erroneous label reading or misleading labels are associated with persistent villous atrophy. Highlights: Patients with celiac disease may be unable to consistently choose gluten-free foods based on product labeling. These patients risk gluten exposure and inappropriate restriction of their diet due to misinterpretation of food labels. Explicit gluten-free labelling may be an effective strategy to improve recognition of gluten-free foods.