Title |
Relation of total sugars, fructose and sucrose with incident type 2 diabetes: a systematic review and meta-analysis of prospective cohort studies
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Published in |
Canadian Medical Association Journal, May 2017
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DOI | 10.1503/cmaj.160706 |
Pubmed ID | |
Authors |
Christine S. Tsilas, Russell J. de Souza, Sonia Blanco Mejia, Arash Mirrahimi, Adrian I. Cozma, Viranda H. Jayalath, Vanessa Ha, Reem Tawfik, Marco Di Buono, Alexandra L. Jenkins, Lawrence A. Leiter, Thomas M.S. Wolever, Joseph Beyene, Tauseef Khan, Cyril W.C. Kendall, David J.A. Jenkins, John L. Sievenpiper |
Abstract |
Sugar-sweetened beverages are associated with type 2 diabetes. To assess whether this association holds for the fructose-containing sugars they contain, we conducted a systematic review and meta-analysis of prospective cohort studies. We searched MEDLINE, Embase, CINAHL and the Cochrane Library (through June 2016). We included prospective cohort studies that assessed the relation of fructose-containing sugars with incident type 2 diabetes. Two independent reviewers extracted relevant data and assessed risk of bias. We pooled risk ratios (RRs) using random effects meta-analyses. The overall quality of the evidence was assessed using the Grading of Recommendations Assessment, Development and Evaluation (GRADE) system. Fiffeen prospective cohort studies (251 261 unique participants, 16 416 cases) met the eligibility criteria, comparing the highest intake (median 137, 35.2 and 78 g/d) with the lowest intake (median 65, 9.7 and 25.8 g/d) of total sugars, fructose and sucrose, respectively. Although there was no association of total sugars (RR 0.91, 95% confidence interval [CI] 0.76-1.09) or fructose (RR 1.04, 95% CI 0.84-1.29) with type 2 diabetes, sucrose was associated with a decreased risk of type 2 diabetes (RR 0.89, 95% CI 0.80-0.98). Our confidence in the estimates was limited by evidence of serious inconsistency between studies for total sugars and fructose, and serious imprecision in the pooled estimates for all 3 sugar categories. Current evidence does not allow us to conclude that fructose-containing sugars independent of food form are associated with increased risk of type 2 diabetes. Further research is likely to affect our estimates. ClinicalTrials.gov, no. NCT01608620. |
X Demographics
Geographical breakdown
Country | Count | As % |
---|---|---|
United States | 39 | 18% |
Canada | 15 | 7% |
Australia | 13 | 6% |
United Kingdom | 12 | 5% |
Spain | 10 | 5% |
Argentina | 5 | 2% |
South Africa | 4 | 2% |
Chile | 4 | 2% |
Ireland | 3 | 1% |
Other | 26 | 12% |
Unknown | 88 | 40% |
Demographic breakdown
Type | Count | As % |
---|---|---|
Members of the public | 154 | 70% |
Practitioners (doctors, other healthcare professionals) | 41 | 19% |
Scientists | 22 | 10% |
Science communicators (journalists, bloggers, editors) | 2 | <1% |
Mendeley readers
Geographical breakdown
Country | Count | As % |
---|---|---|
Unknown | 224 | 100% |
Demographic breakdown
Readers by professional status | Count | As % |
---|---|---|
Student > Master | 35 | 16% |
Student > Bachelor | 34 | 15% |
Student > Ph. D. Student | 24 | 11% |
Researcher | 22 | 10% |
Student > Postgraduate | 14 | 6% |
Other | 34 | 15% |
Unknown | 61 | 27% |
Readers by discipline | Count | As % |
---|---|---|
Medicine and Dentistry | 58 | 26% |
Nursing and Health Professions | 35 | 16% |
Biochemistry, Genetics and Molecular Biology | 17 | 8% |
Agricultural and Biological Sciences | 9 | 4% |
Social Sciences | 9 | 4% |
Other | 21 | 9% |
Unknown | 75 | 33% |