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The Effect of Coconut Oil Consumption on Cardiovascular Risk Factors: A Systematic Review and Meta-Analysis of Clinical Trials.
Circulation. 2020 Mar 10; 141(10):803-814.Circ

Abstract

BACKGROUND

Coconut oil is high in saturated fat and may, therefore, raise serum cholesterol concentrations, but beneficial effects on other cardiovascular risk factors have also been suggested. Therefore, we conducted a systematic review of the effect of coconut oil consumption on blood lipids and other cardiovascular risk factors compared with other cooking oils using data from clinical trials.

METHODS

We searched PubMed, SCOPUS, Cochrane Registry, and Web of Science through June 2019. We selected trials that compared the effects of coconut oil consumption with other fats that lasted at least 2 weeks. Two reviewers independently screened articles, extracted data, and assessed the study quality according to the PRISMA guidelines (Preferred Reporting Items for Systematic Reviews and Meta-Analyses). The main outcomes included low-density lipoprotein cholesterol (LDL-cholesterol), high-density lipoprotein cholesterol (HDL-cholesterol), total cholesterol, triglycerides, measures of body fatness, markers of inflammation, and glycemia. Data were pooled using random-effects meta-analysis.

RESULTS

16 articles were included in the meta-analysis. Results were available from all trials on blood lipids, 8 trials on body weight, 5 trials on percentage body fat, 4 trials on waist circumference, 4 trials on fasting plasma glucose, and 5 trials on C-reactive protein. Coconut oil consumption significantly increased LDL-cholesterol by 10.47 mg/dL (95% CI: 3.01, 17.94; I2 = 84%, N=16) and HDL-cholesterol by 4.00 mg/dL (95% CI: 2.26, 5.73; I2 = 72%, N=16) as compared with nontropical vegetable oils. These effects remained significant after excluding nonrandomized trials, or trials of poor quality (Jadad score <3). Coconut oil consumption did not significantly affect markers of glycemia, inflammation, and adiposity as compared with nontropical vegetable oils.

CONCLUSIONS

Coconut oil consumption results in significantly higher LDL-cholesterol than nontropical vegetable oils. This should inform choices about coconut oil consumption.

Authors+Show Affiliations

Saw Swee Hock School of Public Health (N.N., J.Y.H.S., R.M.v.D.), National University of Singapore and National University Health System, Singapore.Saw Swee Hock School of Public Health (N.N., J.Y.H.S., R.M.v.D.), National University of Singapore and National University Health System, Singapore. NUS Graduate School of Integrative Sciences and Engineering (J.Y.H.S., R.M.v.D.), National University of Singapore and National University Health System, Singapore.Saw Swee Hock School of Public Health (N.N., J.Y.H.S., R.M.v.D.), National University of Singapore and National University Health System, Singapore. Department of Medicine, Yong Loo Lin School of Medicine (R.M.v.D.), National University of Singapore and National University Health System, Singapore. NUS Graduate School of Integrative Sciences and Engineering (J.Y.H.S., R.M.v.D.), National University of Singapore and National University Health System, Singapore. Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, MA (R.M.v.D.).

Pub Type(s)

Comparative Study
Journal Article
Meta-Analysis
Research Support, Non-U.S. Gov't
Systematic Review

Language

eng

PubMed ID

31928080

Citation

Neelakantan, Nithya, et al. "The Effect of Coconut Oil Consumption On Cardiovascular Risk Factors: a Systematic Review and Meta-Analysis of Clinical Trials." Circulation, vol. 141, no. 10, 2020, pp. 803-814.
Neelakantan N, Seah JYH, van Dam RM. The Effect of Coconut Oil Consumption on Cardiovascular Risk Factors: A Systematic Review and Meta-Analysis of Clinical Trials. Circulation. 2020;141(10):803-814.
Neelakantan, N., Seah, J. Y. H., & van Dam, R. M. (2020). The Effect of Coconut Oil Consumption on Cardiovascular Risk Factors: A Systematic Review and Meta-Analysis of Clinical Trials. Circulation, 141(10), 803-814. https://doi.org/10.1161/CIRCULATIONAHA.119.043052
Neelakantan N, Seah JYH, van Dam RM. The Effect of Coconut Oil Consumption On Cardiovascular Risk Factors: a Systematic Review and Meta-Analysis of Clinical Trials. Circulation. 2020 03 10;141(10):803-814. PubMed PMID: 31928080.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - The Effect of Coconut Oil Consumption on Cardiovascular Risk Factors: A Systematic Review and Meta-Analysis of Clinical Trials. AU - Neelakantan,Nithya, AU - Seah,Jowy Yi Hoong, AU - van Dam,Rob M, Y1 - 2020/01/13/ PY - 2020/1/14/pubmed PY - 2020/11/12/medline PY - 2020/1/14/entrez KW - adiposity KW - cholesterol KW - coconut oil KW - glucose KW - heart disease KW - inflammation KW - triglycerides SP - 803 EP - 814 JF - Circulation JO - Circulation VL - 141 IS - 10 N2 - BACKGROUND: Coconut oil is high in saturated fat and may, therefore, raise serum cholesterol concentrations, but beneficial effects on other cardiovascular risk factors have also been suggested. Therefore, we conducted a systematic review of the effect of coconut oil consumption on blood lipids and other cardiovascular risk factors compared with other cooking oils using data from clinical trials. METHODS: We searched PubMed, SCOPUS, Cochrane Registry, and Web of Science through June 2019. We selected trials that compared the effects of coconut oil consumption with other fats that lasted at least 2 weeks. Two reviewers independently screened articles, extracted data, and assessed the study quality according to the PRISMA guidelines (Preferred Reporting Items for Systematic Reviews and Meta-Analyses). The main outcomes included low-density lipoprotein cholesterol (LDL-cholesterol), high-density lipoprotein cholesterol (HDL-cholesterol), total cholesterol, triglycerides, measures of body fatness, markers of inflammation, and glycemia. Data were pooled using random-effects meta-analysis. RESULTS: 16 articles were included in the meta-analysis. Results were available from all trials on blood lipids, 8 trials on body weight, 5 trials on percentage body fat, 4 trials on waist circumference, 4 trials on fasting plasma glucose, and 5 trials on C-reactive protein. Coconut oil consumption significantly increased LDL-cholesterol by 10.47 mg/dL (95% CI: 3.01, 17.94; I2 = 84%, N=16) and HDL-cholesterol by 4.00 mg/dL (95% CI: 2.26, 5.73; I2 = 72%, N=16) as compared with nontropical vegetable oils. These effects remained significant after excluding nonrandomized trials, or trials of poor quality (Jadad score <3). Coconut oil consumption did not significantly affect markers of glycemia, inflammation, and adiposity as compared with nontropical vegetable oils. CONCLUSIONS: Coconut oil consumption results in significantly higher LDL-cholesterol than nontropical vegetable oils. This should inform choices about coconut oil consumption. SN - 1524-4539 UR - https://www.unboundmedicine.com/medline/citation/31928080/full_citation DB - PRIME DP - Unbound Medicine ER -