A meta-analysis of the association between poultry and egg consumption and the risk of brain cancer

To²,

2020

J Int Med Res

Objectives We investigated the association between the consumption of fresh and processed fish and glioma risk using a meta-analysis approach. Methods We selected and analyzed observational studies that discussed the relationships between fresh and processed fish intake on glioma risk from PubMed, Web of Science, Embase, and the SinoMed and Wanfang databases from inception to 31 March 2020. Studies were selected according to pre-established eligibility criteria and data were extracted separately by two researchers. A meta-analysis was conducted based on a random-effects model to provide pooled odds ratios (OR) and 95% confidence intervals (CIs). Results Eight studies considered the relationship between fish intake (seven fresh and seven processed fish) and glioma risk and were included in this meta-analysis. The OR effect size for fresh fish intake and glioma risk was 0.72 (95%CI 0.53–0.97) and the overall OR effect size for processed fish intake and glioma risk was 1.88 (95%CI 1.06–3.34). Conclusion Dietary intake of fresh fish may reduce the risk of glioma, but consumption of processed fish may increase the risk of glioma. This study had some limitations, and further studies are therefore required to clarify the associations between fish intake and glioma risk.

Section: Introductionmentioning

confidence: 99%

Association between fish intake and glioma risk: a systematic review and meta-analysis

To²,

2020

J Int Med Res

“…Thirteen (44.8%) of the 29 included reviews were conducted in China (5,6,8,(17)(18)(19)(20)(21)(22)(23)(24)(25)(26), 6 in the USA (10,(27)(28)(29)(30)(31), three in Iran (32)(33)(34), and 1 each in France (35), the Netherlands (36), Japan (9), Australia (7), Sweden (37), Canada (38) and Singapore (39). Twenty-six reviews were quantitative analyses and the remaining three (10,35,38) were qualitative studies.…”

Section: Characteristics Of the Included Studiesmentioning

confidence: 99%

“…Only four reviews (32,34,38,39) included randomized controlled trials; other reviews were limited to cohort and case-control studies. Nine reviews (5,6,8,21,24,31,34,35,39) included less than ten original studies. Most (n=21) reviews (6)(7)(8)(9)(10)17,(19)(20)(21)(22)(23)(24)(25)(26)(27)(28)(29)(30)(31)33,37) had a total sample of more than 10,000 participants.…”

Section: Characteristics Of the Included Studiesmentioning

confidence: 99%

“…Twelve studies (5,7,(17)(18)(19)(22)(23)(24)(25)27,33,35) examined the association between the risk of different types of cancer and egg consumption. Three of these studies assessed the risk of breast cancer (22,24,27), two the risk of bladder cancer (17,19), two the risk of ovarian cancer (23,27), two the risk of prostate cancer (18,27), and one each the risk of colorectal adenomas (35), GI neoplasms ( 7), non-Hodgkin's lymphoma (25), upper aero-digestive tract cancers (33), and brain cancer (5).…”

Section: Risk Of Cancermentioning

confidence: 99%

“…Along with certain kinds of shellfish, eggs are also the main source of dietary cholesterol: a medium-sized egg of 58 g contains 200 mg cholesterol (4). However, egg consumption may also be associated with some health problems, such as brain cancer (5) and hypertension (6).…”

Section: Introductionmentioning

confidence: 99%

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Egg consumption and health outcomes: a global evidence mapping based on an overview of systematic reviews

Zhang¹,

Lv²,

Luo³

et al. 2020

Ann Transl Med

Background: Several systematic reviews and meta-analyses have assessed the association between egg consumption and human health, but the evidence is often conflicting. Methods:We conducted a systematic literature search to find all systematic reviews and meta-analyses that assess the association between egg consumption and any type of health outcome. We used AMSTAR to evaluate the methodological quality of the reviews, and GRADE to determine the quality of evidence. We visualized the results using a human anatomy diagram and evidence mapping.Results: Our search revealed 29 systematic reviews and meta-analyses. Eight studies were of high methodological quality, 16 studies of medium quality, and five studies of low quality. We identified 34 primary outcomes from the included 29 reviews, which were combined into a total of 22 different health outcomes. Two of the primary outcomes were based on high-quality evidence, 18 on moderate-quality evidence, and 14 on low-quality evidence. Egg consumption was associated with an increased risk of two diseases and decreased risk of six outcomes. For ten outcomes, no significant association was found, and for four outcomes, different reviews came to conflicting conclusions. Conclusions:The association between egg consumption and the risk of cancer, diabetes, cardiovascular diseases and other related diseases has been studied in several meta-analyses. The evidence from different studies on the same topic was often conflicting, which can complicate the making of dietary recommendations.

Poultry Consumption and Human Health: How Much Is Really Known? A Systematically Searched Scoping Review and Research Perspective

Clark

Campbell

Byers

et al. 2022

Advances in Nutrition

This scoping review was conducted to systematically search and chronicle scientific literature pertinent to poultry intake and human health. The protocol (uploaded to Open Science Framework, https://osf.io/2k7bj/) was conducted in accordance with Preferred Reporting Items for Systematic Reviews and Meta-Analyses extension for scoping reviews guidelines. Articles with observational and experimental research, narrative and systematic reviews, and meta-analyses were included. Among 13,141 articles identified, 525 met inclusion criteria. Among these 525 articles, 212 focused on cancer morbidity and mortality; 41 on cardiovascular disease morbidity and mortality; 52 on cardiovascular disease risk factors; 32 on type 2 diabetes mellitus morbidity and mortality; 33 on type 2 diabetes mellitus risk factors; and 42 on body weight and body composition. An “Other” category (181 articles) included nutrient status, psychological well-being/mental health, cognition, microbiome, chronic kidney disease, non-alcoholic fatty liver disease, skin disorders, and fertility, among others. Among the 525 included articles, 366 were observational, 64 were experimental, and 76 were reviews and meta-analyses. Eighty-three % of articles focused on adults or older adults. A paucity of research exists to support poultry as health-promoting foods, with most research only indirectly assessing poultry intake compared to other foods of interest (e.g., red meats or plant-based protein foods). No randomized, controlled trials and only 1% of observational studies assessed the influence of processed poultry intake on human health. In the future, the relative health effects of consuming poultry will be compared to a widening array of traditional and new protein-rich food products, necessitating the need for research to assess poultry as foods of choice. Science and health professionals, the poultry industry, and the public will benefit from new observational and experimental research to address cutting-edge scientific, public policy, and consumer topics pertinent to poultry intake and human health.