ArticlePublic health nutrition2021
High prevalence of food intolerances among US internet users.
Article in Public health nutrition, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
What it found
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The trial behind it
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Who cites it
8 citing papers in PubMed, 16 citations in OpenAlex.
- Therapeutic efficacy of fecal microbiota transplantation in severe food intolerance: a case report.Frontiers in nutrition · 2025Article
- Histamine Intolerance: Symptoms, Diagnosis, and Beyond.Nutrients · 2024Review
- Myths and Facts about Food Intolerance: A Narrative Review.Nutrients · 2023Review
- Self-Reported Gluten Intolerance Is Prevalent, but Not All Gluten-Containing Foods Are Equal.Digestive diseases and sciences · 2023Article
- Non-celiac Gluten Intolerance: A Call to Clarify.Digestive diseases and sciences · 2023Article
- Difficulties in eating out of home while diagnosed with inflammatory bowel disease: A qualitative interview study from China.PloS one · 2023Article
- Associations of Food Intolerance with Irritable Bowel Syndrome, Psychological Symptoms, and Quality of Life.Clinical gastroenterology and hepatology : the official clinical practice journal of the American Gastroenterological Association · 2022Observational
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Corrections and comments
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Authors and funding
5 authors at 2 institutions in 1 country.
Funding
Abstract
objectiveFood intolerances are commonly reported and are predicted to have gastrointestinal health implications. We aimed to quantify the prevalence of food intolerances among US adults and identify culprit foods through a brief web-based survey.
designWe invited participation in an online cross-sectional survey involving a single questionnaire. Data were summarised using percentages or medians and interquartile range. Participant characteristics by self-reported food intolerance were compared using the Wilcoxon rank sum test and Pearson's χ2 test. Adjusted analyses were performed using multivariable logistic regression.
settingThe survey was internet-based via Amazon's mechanical Turk, a crowdsourcing website for the completion of requester directed tasks.
participantsAdults who were US-based internet users were invited at ages 18-80.
resultsWe collected 2133 survey responses (ages 18-79 years). The rate of food intolerance was 24·8 % (95 % CI 23·0, 26·6) in US adults. Younger (P < 0·01), female (P = 0·05) and Asian, African American or multiple race individuals (P < 0·01) predominated. Lactose intolerance was most common. Frequency of a non-lactose food intolerance was 18·1 % (95 % CI 16·5, 19·8). When categorised broadly, grains, fruit, lactose, fish, vegetables, alcohol and nuts were most troublesome for individuals in that order.
conclusionsSelf-reported food intolerance is common in US internet users. The effect of food on gastrointestinal symptoms and avoidant behaviours deserves further attention.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.