{"id":84822,"date":"2022-07-01T16:52:15","date_gmt":"2022-07-01T14:52:15","guid":{"rendered":"https:\/\/aprifel-pp.mentalworks.biz\/?post_type=article_revue&p=84822"},"modified":"2023-03-23T14:33:19","modified_gmt":"2023-03-23T13:33:19","slug":"intake-of-dietary-fiber-fruit-and-vegetables-and-risk-of-inflammatory-bowel-disease-a-systematic-review-and-meta-analysis","status":"publish","type":"article_revue","link":"https:\/\/aprifel-pp.mentalworks.biz\/en\/global-fv-newsletter-article\/intake-of-dietary-fiber-fruit-and-vegetables-and-risk-of-inflammatory-bowel-disease-a-systematic-review-and-meta-analysis\/","title":{"rendered":"Intake of dietary fiber, fruit, and vegetables and risk of inflammatory bowel disease: a systematic review and meta-analysis"},"content":{"rendered":"\n
\"\"<\/figure>\n\n\n\n
\n Author(s)<\/strong>\n
\n
\n Ahmad Esmaillzadeh<\/strong>\n Department of Community Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences, Iran<\/span>\n <\/div>\n <\/div>\n<\/div>\n\n\n\n

Inflammatory bowel disease (IBD) occurs in two forms, Crohn disease (CD) and ulcerative colitis (UC). Its prevalence is increasing worldwide, with more than 3 million people affected in Europe and 1.5 million in the U.S. (Park, 2014<\/a>; Burisch, 2013<\/a>). Factors such as an alteration in the gut microbiota, taking oral contraceptives, living in urban areas, and having a stressful lifestyle play an important role in IBD development. However, there is a lack of information regarding the contribution of dietary factors in IBD pathogenesis (Rampton, 2011<\/a>). Several prospective studies have been conducted on the association between dietary fiber, fruit, and vegetable intake and IBD, but there is no meta-analysis that summarize these publications.<\/strong><\/p>\n\n\n\n

Therefore, the present meta-analysis aims to summarize the findings from these publications on the association between dietary fiber, fruit, and vegetable intake and the risk of IBD.<\/p>\n\n\n\n

Dietary fiber intake is significantly associated with a reduced risk of Crohn disease and IBD, but not with ulcerative colitis<\/h2>\n\n\n\n

Combining 6 effect sizes from 5 studies revealed a significant inverse association between dietary fiber intake and Crohn disease.<\/strong><\/p>\n\n\n\n

When searching for nonlinear association, results also showed a significant association such that the highest risk reduction <\/strong>of Crohn disease was seen for fiber intake >22 g\/d.<\/strong><\/p>\n\n\n\n

In the linear association, we found that an additional 10 g\/d of fiber intake <\/strong>was associated with a 14% risk reduction of Crohn disease<\/strong> (cf. Table 1).<\/p>\n\n\n\n

However, regarding ulcerative colitis, no significant association <\/strong>was noted by combining data from 6 prospective cohort studies. Linear and nonlinear association were not significant neither.<\/p>\n\n\n\n

On the other hand, when studies on Crohn disease and ulcerative colitis were combined, a significant inverse association<\/strong> was found between dietary fiber intake and risk of IBD.<\/strong><\/p>\n\n\n\n

Dietary intakes of fruit and vegetables are significantly associated with a reduced risk of ulcerative colitis, Crohn disease and IBD<\/h2>\n\n\n\n

Data combined from 4 studies showed a significant inverse association between fruit consumption and the risk of ulcerative colitis:<\/strong> individuals who were in the highest category of fruit intake had 31% lower risk of ulcerative colitis compared with those in the lowest category. For vegetables, the association was also significant, with 44% lower risk of ulcerative colitis <\/strong>in individuals in the top category of vegetable consumption<\/strong> compared with those in the bottom category.<\/p>\n\n\n\n

Regarding Crohn disease, associations were also significant for fruit and vegetable consumption. Findings showed that individuals with the highest fruit consumption had a lower risk of Crohn<\/strong> disease development compared with those with the lowest intake. A significant association was also observed between a high intake of vegetables and a reduced risk of Crohn disease based on data for 3 studies. An additional 1 serving of fruit and 1 serving of vegetable per day<\/strong> was respectively associated with a 19% and 11% lower risk of Crohn disease <\/strong>according to nonlinear association (cf. Table 1).<\/p>\n\n\n

\n
\"\"
Table 1: Risk reduction of Crohn disease for additional intakes of dietary fiber, fruit, and vegetables.<\/figcaption><\/figure><\/div>\n\n\n

When combining studies on Crohn disease and ulcerative colitis, fruit consumption<\/strong> was significantly associated with IBD risk<\/strong>. Vegetables consumption was also significantly associated with a reduced risk of IBD, so that those with the highest intake of vegetables had a 46% lower risk of IBD development compared with those with the lowest intake.<\/p>\n\n\n\n

Based on<\/strong> : Milajerdi A, et al. Association of Dietary Fiber, Fruit, and Vegetable Consumption with Risk of Inflammatory Bowel Disease: A Systematic Review and Meta-Analysis. Adv Nutr. 2021 Jun 1;12(3):735-743.<\/p>\n\n\n\n

\n
\n <\/i>\n Methodology<\/strong>\n <\/div>\n
    \n
  • Relevant articles published up to 2019 were searched via PubMed, MEDLINE, Scopus, Embase, Cochrane Library, and Google Scholar.<\/li>\n
  • In final, 11 cohort studies (12 effect sizes) were included: <\/li>\n
  • 6 prospective cohorts and 5 case-control studies<\/li>\n
  • Mainly conducted in Sweden, United States, Australia, and Denmark<\/li>\n
  • A total of 478,604 participants were enrolled in the included studies, aged between 10 and 80 years old.<\/li>\n
      \n<\/div>\n<\/div>\n\n\n\n
      \n
      \n <\/i>\n Key messages<\/strong>\n <\/div>\n
        \n
      • A significant association was found between dietary fiber and a reduced risk of Crohn disease and IBD, but not with ulcerative colitis.<\/li>\n
      • Dietary intake of fruit was significantly associated with a reduced risk of ulcerative colitis, Crohn disease and IBD. <\/li>\n
      • Vegetable consumption was significantly associated with a reduced risk of ulcerative colitis, Crohn disease, and IBD.<\/li>\n
      • Further prospective studies and clinical trials are needed to expand knowledge about the association in this regard. <\/li>\n<\/div>\n<\/div>\n\n\n\n
        \n
        \n <\/i>\n References<\/strong>\n <\/div>\n
        \n
        \n <\/i>\n Burisch J, Munkholm P. Inflammatory bowel disease epidemiology. Curr Opin Gastroenterol. 2013 Jul;29(4):357-62.<\/span>\n <\/div>\n
        \n <\/i>\n Park SJ, et al. Clinical characteristics and treatment of inflammatory bowel disease: a comparison of Eastern and Western perspectives. World J Gastroenterol. 2014 Sep 7;20(33):11525-37.<\/span>\n <\/div>\n
        \n <\/i>\n Rampton DS. The influence of stress on the development and severity of immune-mediated diseases. J Rheumatol Suppl. 2011 Nov;88:43-7.<\/span>\n <\/div>\n <\/div>\n<\/div>\n","protected":false},"template":"","class_list":["post-84822","article_revue","type-article_revue","status-publish","hentry"],"acf":{"auteur":"","source":"","revue":[{"ID":84821,"post_author":"25","post_date":"2022-07-01 16:25:15","post_date_gmt":"2022-07-01 14:25:15","post_content":"\n
        \"\"<\/figure>\n\n\n\n

        Countless studies are constantly being carried out, and no two are alike. Here is an overview of three studies exploring unusual targets of fruit and vegetable consumption.<\/strong><\/p>\n\n\n\n

        • The first study dealt with inflammatory bowel disease (IBD), which encompasses Crohn\u2019s disease and ulcerative colitis (UC). The cause of these two conditions is unknown although the mechanism involved has been identified, with a strong inflammatory component. Data suggest that diet may trigger, aggravate or even favour them. Consumption of fibre was associated with a slight reduction in the risk of Crohn\u2019s disease, while fruit and vegetable consumption was linked to a decrease in Crohn\u2019s disease and UC. This may have been due to the anti-inflammatory effects of fruit and vegetables, their impact on the microbiota, or a favourable effect of the associated eating style (less fat and sugar, etc.?). However, especially in the case-control studies, reverse causality could not be ruled out considering that the IBD patients reduced their consumption of produce during flare-ups.<\/li>
        • The second study focused on sulforaphane and foods high in it (i.e. cabbage and other cruciferous vegetables), and reviewed its effects on various diseases (inflammation, carcinogenesis, the microbiota, ageing processes, chronic kidney disease). Findings suggest that this compound, and therefore foods high in it, may be beneficial for patients with chronic kidney failure.<\/li>
        • The third publication reviewed various candidate nutrients for preventing female infertility, which is a genuine public health problem that seems to be worsening, either because of the increasing age of women wanting to have children or due to unfavourable changes in the eating or lifestyle (smoking, etc.) habits of these women. Oxidative stress seems to be involved in reducing female fertility (and also male fertility). And yet a large number of well-known nutrients with antioxidant effects are widely found in fruit and vegetables (vitamins C, E and A, carotenoids, polyphenols, etc.). The authors are in favour of undertaking clinical studies to provide evidence supporting this assumption and encourage the use of antioxidants in cases of infertility. As a precautionary measure, instead of advocating food supplements, it would be safer to propose fruit and vegetables.<\/li><\/ul>\n\n\n\n

          Fruit and vegetables are therefore a safe bet for a growing number of health benefits.<\/p>\n\n\n\n\n","post_title":"74 - June 2022","post_excerpt":"","post_status":"publish","comment_status":"closed","ping_status":"closed","post_password":"","post_name":"health-benefits-of-fruit-and-vegetables-across-the-board","to_ping":"","pinged":"","post_modified":"2024-10-24 17:20:19","post_modified_gmt":"2024-10-24 15:20:19","post_content_filtered":"","post_parent":0,"guid":"https:\/\/aprifel-pp.mentalworks.biz\/?post_type=revue&p=84821","menu_order":57,"post_type":"revue","post_mime_type":"","comment_count":"0","filter":"raw"}],"position":"1","references":""},"yoast_head":"\nInflammatory bowel disease, fruit and vegetables<\/title>\n<meta name=\"description\" content=\"A significant association was found between dietary fiber and a reduced risk of Crohn disease and Inflammatory bowl disease.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, 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