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Caffeine consumption appears to have no significant association with overall risk for inflammatory bowel disease (IBD) overall but may raise the risk for ulcerative colitis (UC) in different groups with varying characteristics, according to a systematic review and meta-analysis in the Journal of Gastroenterology and Hepatology<\/em>.<\/p>\n Investigators from the Department of Rehabilitation at Jingmen Central Hospital in Jingmen, China, said the relationship between IBD risk and this stimulatory, antioxidant, and anti-inflammatory alkaloid, widely consumed in tea, coffee, chocolate, kola nuts, and over-the-counter medicines, varies by region, age, source, smoking, and education level. In Asia and Europe, for example, coffee and tea appear to reduce UC risk, whereas in the Americas and adolescents, they have the opposite effect. \u201cVarious factors must be considered to assess caffeine\u2019s impact on IBD risk accurately,\u201d wrote Xiangying Wu, MD, and colleagues.<\/p>\n Theirs is the first systematic examination of the issue after a 2021 study suggested a link between caffeine consumption and IBD severity. \u201cAlthough these preliminary observations have garnered widespread attention from researchers and spurred a series of new discussions and studies, to our knowledge, no study has systematically reviewed and synthesized data on the association between caffeine intake and IBD,\u201d Wu\u2019s group wrote.<\/p>\n Designed to help clarify a possible link, the meta-analysis looked at 21 studies with a total of 13,209 patients: 13 from Asia, 5 from Europe, 2 from America, and 1 from elsewhere. It suggested that, overall, caffeine intake is associated with a 16% lower overall IBD susceptibility: relative risk (RR, 0.84, 95% CI, 0.68-1.04), but subgroup analyses showed a more nuanced picture.<\/p>\n In specific findings:<\/p>\n The evidence synthesis indicates that caffeine\u2019s effect on IBD is complex and varied. Regional discrepancies may be attributed to variations in coffee type, plant source, and preparation methods, the authors wrote. \u201cFor instance, the concentration, composition, and consumption habits of coffee differ significantly across the globe, potentially leading to different impacts on UC patients in various countries and regions.\u201d<\/p>\n As for the age effect, the authors noted that in the developing adolescent body, many physiologic systems are not yet fully mature and stable. \u201cConsequently, caffeine intake may more easily have negative impacts on gut health, as the intestinal mucosa in adolescents is more sensitive, and the balance of gut microbiota is more fragile,\u201d they wrote. \u201cThe stimulation from caffeine might disrupt this delicate balance, thereby increasing the risk of developing IBD.\u201d<\/p>\n Although the mechanism linking smoking and CD is not fully understood, it is speculated that nicotine in cigarettes may alter the functional state of colonic epithelial cells. \u201cThis finding highlights the need for smokers to be more cautious about their caffeine intake to mitigate potential health risks,\u201d Wu and associates wrote.<\/p>\n With regard to a higher education level raising CD risk in caffeine users, this may reflect common characteristics related to CD risk within this group, such as lifestyle habits and dietary structure. For example, better-educated individuals might experience greater life stress, higher work intensity, or more irregular dietary habits \u2014 factors that may exacerbate the impact of caffeine. The reduced risk among those with less education might reflect a relatively simpler lifestyle and different dietary habits.<\/p>\n Offering a US gastroenterologist\u2019s perspective on the findings, Adam Faye, MD, director of clinical research at NYU Langone Health\u2019s Inflammatory Bowel Disease Center and assistant professor of medicine and population health at NYU Grossman School of Medicine in New York City, found the results to be not particularly robust.<\/p>\n \u201cBased on available epidemiological data, it\u2019s challenging to disentangle the independent contribution of caffeine to future UC risk,\u201d he told Medscape Medical News<\/em>. \u201cCaffeine consumption often co-occurs with other environmental and lifestyle factors that may confound observed associations, and caffeine is ingested in heterogeneous forms and doses, such as coffee, energy drinks, or sugar-sweetened beverages.\u201d<\/p>\n That said, he added, caffeine, largely through coffee, can have beneficial impacts on the microbiome, \u201cso it\u2019s not implausible that caffeine consumption may influence the risk of IBD. But determining to what extent would require careful measurement in a longitudinal cohort and\/or additional work at the bench to discern its impact on the gut epithelium\/immune system.\u201d<\/p>\n Faye expressed methodological concern that the higher UC risk in Americans was based on a single study looking at caffeine users who already have IBD rather than those at future risk for developing it. \u201cThe other US-based study looked at prior 30-day consumption in IBD vs non-IBD; so, again, it\u2019s not capturing risk of later developing IBD. I find it difficult to make any definitive conclusions, but the general principle of avoiding sugary or processed foods is helpful for overall health and perhaps to decrease risk of IBD as well.\u201d In terms of caffeine sources, \u201ccoffee would be a reasonable option.\u201d<\/p>\n In Faye\u2019s view, the way caffeine is consumed and perhaps the amounts could influence IBD risk. \u201cFor instance, if we consumed equivalent of amounts of caffeine, but one person did so through soda and another through coffee, the risk of IBD may still be differential \u2014 less due to the caffeine and more the vehicle.\u201d And in youth, greater consumption via artificially sweetened soda pop could be a possible risk factor.<\/p>\n Future research should look at the specific influence of coffee on the intestinal microbiome stratified by age to show differences between older and younger adults. \u201cDisentangling caffeine from coffee consumption in the risk of future IBD would help advance what we know,\u201d he said. \u201cAlso, understanding the risk of caffeine and coffee consumption on the intestinal microbiome, particularly in those at higher risk to develop IBD, may be helpful for understanding a plausible mechanism.\u201d<\/p>\n In the meantime, Faye added, \u201cUntil we have more data, avoidance of processed and sugary drinks \u2014 which we think to be related to overall lower health including an increased risk of IBD and which often contain caffeine as well \u2014 may be prudent.\u201d<\/p>\n This study received no specific funding. The authors reported having no conflicts of interest. Faye reported having no competing interests relevant to his comments but reported\u00a0consulting for Eli Lilly and Company, AbbVie, and Takeda.<\/em><\/p>\n<\/div>\n Caffeine consumption appears to have no significant association with overall risk for inflammatory bowel disease (IBD) overall but may raise the risk for ulcerative colitis (UC) in different groups with varying characteristics, according to a systematic review and meta-analysis in the Journal of Gastroenterology and Hepatology. Investigators from the Department of Rehabilitation at Jingmen Central […]<\/p>\n","protected":false},"author":1,"featured_media":3191,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_daextam_enable_autolinks":"","jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[2],"tags":[],"class_list":["post-3190","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-health"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/diyhaven858.wasmer.app\/wp-content\/uploads\/2026\/01\/dt_241224_black_coffee_cup_800x450.jpg","jetpack_sharing_enabled":true,"jetpack-related-posts":[],"_links":{"self":[{"href":"https:\/\/diyhaven858.wasmer.app\/index.php\/wp-json\/wp\/v2\/posts\/3190","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/diyhaven858.wasmer.app\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/diyhaven858.wasmer.app\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/diyhaven858.wasmer.app\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/diyhaven858.wasmer.app\/index.php\/wp-json\/wp\/v2\/comments?post=3190"}],"version-history":[{"count":0,"href":"https:\/\/diyhaven858.wasmer.app\/index.php\/wp-json\/wp\/v2\/posts\/3190\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/diyhaven858.wasmer.app\/index.php\/wp-json\/wp\/v2\/media\/3191"}],"wp:attachment":[{"href":"https:\/\/diyhaven858.wasmer.app\/index.php\/wp-json\/wp\/v2\/media?parent=3190"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/diyhaven858.wasmer.app\/index.php\/wp-json\/wp\/v2\/categories?post=3190"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/diyhaven858.wasmer.app\/index.php\/wp-json\/wp\/v2\/tags?post=3190"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}\n
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