Abstract:
:The potential relationship between red meat consumption and colorectal cancer (CRC) has been the subject of scientific debate. Given the high degree of resulting uncertainty, our objective was to update the state of the science by conducting a systematic quantitative assessment of the epidemiologic literature. Specifically, we updated and expanded our previous meta-analysis by integrating data from new prospective cohort studies and conducting a broader evaluation of the relative risk estimates by specific intake categories. Data from 27 independent prospective cohort studies were meta-analyzed using random-effects models, and sources of potential heterogeneity were examined through subgroup and sensitivity analyses. In addition, a comprehensive evaluation of potential dose-response patterns was conducted. In the meta-analysis of all cohorts, a weakly elevated summary relative risk was observed (1.11, 95% CI: 1.03-1.19); however, statistically significant heterogeneity was present. In general, summary associations were attenuated (closer to the null and less heterogeneous) in models that isolated fresh red meat (from processed meat), adjusted for more relevant factors, analyzed women only, and were conducted in countries outside of the United States. Furthermore, no clear patterns of dose-response were apparent. In conclusion, the state of the epidemiologic science on red meat consumption and CRC is best described in terms of weak associations, heterogeneity, an inability to disentangle effects from other dietary and lifestyle factors, lack of a clear dose-response effect, and weakening evidence over time. KEY TEACHING POINTS: •The role of red meat consumption in colorectal cancer risk has been widely contested among the scientific community.•In the current meta-analysis of red meat intake and colorectal cancer, we comprehensively examined associations by creating numerous sub-group stratifications, conducting extensive sensitivity analyses, and evaluating dose-response using several different methods.•Overall, all summary associations were weak in magnitude with no clear dose-response patterns.•Interpretation of findings from epidemiologic studies investigating diet and health outcomes involves numerous methodological considerations, such as accurately measuring food intake, dietary pattern differences across populations, food definitions, outcome classifications, bias and confounding, multicollinearity, biological mechanisms, genetic variation in metabolizing enzymes, and differences in analytical metrics and statistical testing parameters.
journal_name
J Am Coll Nutrjournal_title
Journal of the American College of Nutritionauthors
Alexander DD,Weed DL,Miller PE,Mohamed MAdoi
10.1080/07315724.2014.992553subject
Has Abstractpub_date
2015-01-01 00:00:00pages
521-43issue
6eissn
0731-5724issn
1541-1087journal_volume
34pub_type
杂志文章,meta分析,评审abstract:OBJECTIVE:The present study was undertaken to investigate the effect of dietary magnesium (Mg) deficiency on plasma levels of parathyroid hormone (PTH) and calcitonin (CT), and the changes in tissue calcium (Ca) and phosphorus (P) content. METHODS:Wistar rats were fed an Mg-deficient diet. Plasma levels of PTH and CT,...
journal_title:Journal of the American College of Nutrition
pub_type: 杂志文章
doi:10.1080/07315724.1995.10718510
更新日期:1995-06-01 00:00:00
abstract:OBJECTIVE:Rheumatoid arthritis (RA) is an autoimmune inflammatory disease that causes great pain and disability and increasing oxidative stress in patients. The objective of the present study was to evaluate the effects of probiotics-live microorganisms with many health benefits, including antioxidant properties-on oxi...
journal_title:Journal of the American College of Nutrition
pub_type: 杂志文章,随机对照试验
doi:10.1080/07315724.2014.959208
更新日期:2016-05-01 00:00:00
abstract::Foodstuffs produced and/or purchased locally were analyzed for Se. The effect of income and gender on Se intake and status of Utah County residents was evaluated by measurement of the following indicators: erythrocyte (RBC) and plasma Se concentration, and activity of Se-glutathione peroxidase (Se-GSH-Px) (EC 1.11.1.9...
journal_title:Journal of the American College of Nutrition
pub_type: 杂志文章
doi:10.1080/07315724.1988.10720233
更新日期:1988-04-01 00:00:00
abstract:OBJECTIVE:Approximately 70% of all cancer patients have elevations in hepatic glucose production and/or reductions in glucose utilization. To identify an explanation for insulin resistance, we measured fasting hepatic glucose production (HGP), leucine appearance (Leu Ra), leucine oxidation (LO), glucose oxidation (GO) ...
journal_title:Journal of the American College of Nutrition
pub_type: 杂志文章
doi:10.1080/07315724.1995.10718519
更新日期:1995-08-01 00:00:00
abstract:OBJECTIVE:We investigated the effect of dietary magnesium (Mg) deficiency on the nutritive utilization and tissue distribution of manganese (Mn). METHODS:Wistar rats were fed a Mg-deficient diet (56 mg/kg) for 70 day. Absorbed Mn, Mn balance and Mn content in plasma, whole blood, skeletal muscle, heart, kidney, liver,...
journal_title:Journal of the American College of Nutrition
pub_type: 杂志文章
doi:10.1080/07315724.1999.10718886
更新日期:1999-10-01 00:00:00
abstract::The glycemic index (GI) was determined in 36 non-insulin-dependent diabetes mellitus patients who were fed 50 g carbohydrate portions of six Indian conventional foods, including rice, a combination of rice-legume (Bengalgram, peas, and greengram), and a combination of rice-dal (greengram dal and redgram dal -- dal is ...
journal_title:Journal of the American College of Nutrition
pub_type: 杂志文章
doi:10.1080/07315724.1990.10720411
更新日期:1990-12-01 00:00:00
abstract::Vitamin A deficiency is one of the most widespread nutritional deficiencies worldwide. Hundreds of millions of children and tens of millions of women living in Sub-Saharan Africa and Southeast Asia are at particularly high risk of the adverse health consequences associated with this largely preventable condition. Red ...
journal_title:Journal of the American College of Nutrition
pub_type: 杂志文章,评审
doi:10.1080/07315724.2010.10719845
更新日期:2010-06-01 00:00:00
abstract:OBJECTIVE:To determine measured resting energy expenditure (REE) of nonambulatory tube-fed patients with severe neurological neurodevelopmental disabilities. METHODS:Twenty patients were prospectively studied. Only steady state indirect calorimetry measurements were taken. All measurements were conducted using a canop...
journal_title:Journal of the American College of Nutrition
pub_type: 杂志文章
doi:10.1080/07315724.1999.10718828
更新日期:1999-02-01 00:00:00
abstract:OBJECTIVE:This study was designed with two aims: 1) to determine if the coronary artery bypass graft (CABG) procedure alters plasma vitamin E and C concentrations of adult patients through repeated determinations of vitamin levels at time points before, during and following CABG, and 2) to assess whether plasma vitamin...
journal_title:Journal of the American College of Nutrition
pub_type: 杂志文章
doi:10.1080/07315724.1998.10718742
更新日期:1998-04-01 00:00:00
abstract:BACKGROUND:Patients with systemic lupus erythematosus (SLE) have elevated cardiovascular risk. Hyperhomocysteinemia may be one of the contributing factors to this phenomenon. This study therefore aimed to compare the serum homocysteine levels and the levels of folate and vitamin B12, cofactors for homocysteine metaboli...
journal_title:Journal of the American College of Nutrition
pub_type: 杂志文章
doi:10.1080/07315724.2020.1788472
更新日期:2020-07-23 00:00:00
abstract::The inverse relationship between intake of dairy products and blood pressure levels was first suggested by several epidemiologic surveys in the early 1980's that revealed low calcium intake in populations with increased prevalence of hypertension. Subsequent laboratory and clinical investigations provided further evid...
journal_title:Journal of the American College of Nutrition
pub_type: 杂志文章,评审
doi:10.1080/07315724.2000.10718085
更新日期:2000-04-01 00:00:00
abstract:UNLABELLED:Many publications indicate the beneficial effect of n-6 polyunsaturated fatty acids (n-6 PUFAs) in the control of coronary heart disease and diabetes, although the mechanism is not clear. Some of our previous results suggest that, in contrast to other lipids, n-6 PUFAs could have a permissive effect on carbo...
journal_title:Journal of the American College of Nutrition
pub_type: 杂志文章
doi:10.1080/07315724.1987.10720202
更新日期:1987-10-01 00:00:00
abstract::Anorexia nervosa (AN) can result in extreme malnutrition, and these patients frequently require inordinately large amounts of calories to gain weight during refeeding therapy. Insulin-like growth factor-I (IGF-I) is a polypeptide that mediates many of the anabolic effects of growth hormone. Low levels of IGF-I have be...
journal_title:Journal of the American College of Nutrition
pub_type: 杂志文章
doi:10.1080/07315724.1993.10718338
更新日期:1993-08-01 00:00:00
abstract::Current and emerging bone active pharmacologic agents are capable of producing substantial gains in bone mass. However, nutrition must be adequate if this potential is to be realized. Calcium and vitamin D supplementation, for example, have both been demonstrated to augment substantially the skeletal response to estro...
journal_title:Journal of the American College of Nutrition
pub_type: 杂志文章,评审
doi:10.1080/07315724.2001.10719176
更新日期:2001-10-01 00:00:00
abstract:OBJECTIVE:The consequences of chronic, low grade lead (Pb) burden from earlier exposure on development of hypertension (HT) and cardiovascular disease is, at best, controversial, even though many epidemiological studies suggest the possibility. Accordingly, we examined ability of a short-term Pb challenge to cause late...
journal_title:Journal of the American College of Nutrition
pub_type: 杂志文章
doi:10.1080/07315724.1994.10718451
更新日期:1994-12-01 00:00:00
abstract::ABSTACTAim: The present study aimed to investigate the effect of rose sirup and marigold powder on the physicochemical properties, bioactive potential, sensory acceptability and storage life of the nutricereals (finger millet, oats) and milk-based functional beverage (FB).Method: Preliminary trials were performed usin...
journal_title:Journal of the American College of Nutrition
pub_type: 杂志文章
doi:10.1080/07315724.2020.1744487
更新日期:2020-03-24 00:00:00
abstract:OBJECTIVE:The goal of the current study has been to examine systematically the respective roles of nutrition, exercise, menopausal weight gain, moderate drinking and smoking as determinants of body mass index (BMI) and waist hip ratio (WHR) in a setting in which the role of race or ethnic group could be simultaneously ...
journal_title:Journal of the American College of Nutrition
pub_type: 杂志文章
doi:10.1080/07315724.2003.10719303
更新日期:2003-08-01 00:00:00
abstract:OBJECTIVE:The kinetics of magnesium (Mg) absorption, after drinking Magnesia mineral water (204 mg Mg/L), was investigated in healthy humans aged (23-60 yrs). METHODS:Serum Mg, calcium (Ca), potassium (K) and sodium (Na) content, blood hemoglobin, erythrocyte and white blood cell counts as well as urinary volume and u...
journal_title:Journal of the American College of Nutrition
pub_type: 杂志文章
doi:10.1080/07315724.2004.10719424
更新日期:2004-12-01 00:00:00
abstract:BACKGROUND AND OBJECTIVES:Micronutrients may influence the development and differentiation of sperm cells. The aim of this study was to assess the possible association of deficiencies in several vitamins and trace elements with sperm abnormalities in men with obesity. PARTICIPANTS AND METHODS:Thirty male patients with...
journal_title:Journal of the American College of Nutrition
pub_type: 杂志文章
doi:10.1080/07315724.2017.1387877
更新日期:2018-03-01 00:00:00
abstract:OBJECTIVE:There is limited information on the nutritional health of Canadian children, particularly those living in poverty. Our purpose was to assess the dietary and anthropometric status of economically disadvantaged children as part of the longitudinal, multidisciplinary prevention project, Better Beginnings, Better...
journal_title:Journal of the American College of Nutrition
pub_type: 杂志文章
doi:10.1080/07315724.1995.10718548
更新日期:1995-12-01 00:00:00
abstract:OBJECTIVE:In vitro and animal studies suggest that antitumor effect of chemotherapeutic agents may be enhanced by antioxidants. Therefore, we initiated a clinical study to test the efficacy of high-dose multiple antioxidants (vitamins C, E and beta carotene) as an adjunct to chemotherapy (paclitaxel and carboplatin) in...
journal_title:Journal of the American College of Nutrition
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1080/07315724.2005.10719438
更新日期:2005-02-01 00:00:00
abstract::The lack of prevention of noncommunicable diseases (NCDs) has caused an increase in the mortality rate including conditions such as chronic kidney disease (CKD) and liver disease (LD). The high complexity of CKD and LD results in alterations in the metabolism of carbohydrates, proteins, and lipids. One of the changes ...
journal_title:Journal of the American College of Nutrition
pub_type: 杂志文章
doi:10.1080/07315724.2020.1810171
更新日期:2020-12-10 00:00:00
abstract::This paper traces the development of knowledge concerning early lesions of atherosclerosis and the relationship to risk factors in children, youth, and young adults. Autopsy studies have shown that atherosclerosis begins in childhood with the appearance of aortic fatty streaks. Aortic fatty streaks of some degree are ...
journal_title:Journal of the American College of Nutrition
pub_type: 杂志文章,评审
doi:10.1080/07315724.1992.10737984
更新日期:1992-06-01 00:00:00
abstract:BACKGROUND/OBJECTIVES:Added sugars provide calories and desirability to foods and beverages. Our aim was to test whether desire for a sweet taste would be better maintained than a desire for other tastes for 3 hours after a test meal. METHODS:Eighty-three young adults ate 2 slices of bread on 2 separate occasions afte...
journal_title:Journal of the American College of Nutrition
pub_type: 杂志文章
doi:10.1080/07315724.2015.1117956
更新日期:2016-08-01 00:00:00
abstract::Patients who appear to respond best to high branched-chain amino acid (BCAA) solutions have been previously described by objective measurements such as total urinary nitrogen (TUN) excretion, oxygen consumption index (O2Cl), plasma lactate, plasma pyruvate, plasma glucose (PG) and urinary 3-methylhistidine. Use of the...
journal_title:Journal of the American College of Nutrition
pub_type: 杂志文章
doi:10.1080/07315724.1992.10718192
更新日期:1992-02-01 00:00:00
abstract:OBJECTIVES:Indices of copper status, specifically serum copper and ceruloplasmin concentrations and erythrocyte superoxide dismutase activity, and iron status, including serum ferritin, transferrin receptors, hemoglobin and hematocrit, were studied in 27 college-aged females with adequate iron versus low iron stores. ...
journal_title:Journal of the American College of Nutrition
pub_type: 杂志文章
doi:10.1080/07315724.2002.10719253
更新日期:2002-12-01 00:00:00
abstract::To determine if the lower plasma ascorbic acid concentrations observed in males compared to females, and in the elderly in general, might be due to differences in renal clearances of ascorbic acid, tubular maximum reabsorptions (TmAA) and renal thresholds for ascorbic acid were determined on older (10 male, 10 female,...
journal_title:Journal of the American College of Nutrition
pub_type: 杂志文章
doi:10.1080/07315724.1993.10718349
更新日期:1993-10-01 00:00:00
abstract:OBJECTIVE:NutriBee was the first clinical nutrition intervention designed to bring the Institute of Medicine recommendations for 20 hours of experiential nutrition-themed learning to grades 4-7 into club and camp settings. We piloted NutriBee to assess acceptability and impact among early adolescents in diverse and dis...
journal_title:Journal of the American College of Nutrition
pub_type: 杂志文章
doi:10.1080/07315724.2015.1110507
更新日期:2016-07-01 00:00:00
abstract:OBJECTIVE:Yam (Dioscorea) has been used to treat menopausal symptom folklorically. This study was to investigate the effects of yam ingestion on lipids, antioxidant status, and sex hormones in postmenopausal women. METHODS:Twenty-four apparently healthy postmenopausal women were recruited to replace their staple food ...
journal_title:Journal of the American College of Nutrition
pub_type: 临床试验,杂志文章
doi:10.1080/07315724.2005.10719470
更新日期:2005-08-01 00:00:00
abstract:OBJECTIVE:The goal of this work is to assess the effect of L-carnitine on glucose disposal, particularly on insulin sensitivity, in healthy volunteers. METHODS:Fourteen healthy human volunteers were subjected to the intravenous glucose tolerance test (analyzed by means of the minimal model technique), together with in...
journal_title:Journal of the American College of Nutrition
pub_type: 杂志文章
doi:10.1080/07315724.1999.10718866
更新日期:1999-08-01 00:00:00