The DOI matches its Crossref record; 8 of the 8 references it cites were found in a registry or an index.
Effect of Cocoa and Tea Intake on Blood Pressure: A Meta-analysis
Abstract
BACKGROUND: Epidemiological evidence suggests blood pressure-lowering effects of cocoa and tea. We undertook a meta-analysis of randomized controlled trials to determine changes in systolic and diastolic blood pressure due to the intake of cocoa products or black and green tea. METHODS: MEDLINE, EMBASE, SCOPUS, Science Citation Index, and the Cochrane Controlled Trials Register were searched from 1966 until October 2006 for studies in parallel group or crossover design involving 10 or more adults in whom blood pressure was assessed before and after receiving cocoa products or black or green tea for at least 7 days. RESULTS: Five randomized controlled studies of cocoa administration involving a total of 173 subjects with a median duration of 2 weeks were included. After the cocoa diets, the pooled mean systolic and diastolic blood pressure were -4.7 mm Hg (95% confidence interval [CI], -7.6 to -1.8 mm Hg; P = .002) and -2.8 mm Hg (95% CI, -4.8 to -0.8 mm Hg; P = .006) lower, respectively, compared with the cocoa-free controls. Five studies of tea consumption involving a total of 343 subjects with a median duration of 4 weeks were selected. The tea intake had no significant effects on blood pressure. The estimated pooled changes were 0.4 mm Hg (95% CI, -1.3 to 2.2 mm Hg; P = .63) in systolic and -0.6 mm Hg (95% CI, -1.5 to 0.4 mm Hg; P = .38) in diastolic blood pressure compared with controls. CONCLUSION: Current randomized dietary studies indicate that consumption of foods rich in cocoa may reduce blood pressure, while tea intake appears to have no effect.
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Cites
Assessing the quality of reports of randomized clinical trials: Is blinding necessary?
Jadad, A. R., Moore, R. A., Carroll, D., Jenkinson, C., Reynolds, D. J. M., Gavaghan, D. J., & McQuay, H. J. (1996) · Controlled Clinical Trials · doi:10.1016/0197-2456(95)00134-4 · Cited by 17,582
Duval, S., & Tweedie, R. (2000) · Biometrics · doi:10.1111/j.0006-341x.2000.00455.x · Cited by 14,099
Lichtenstein, A. H., Appel, L. J., Brands, M., Carnethon, M., Daniels, S., Franch, H. A., Franklin, B., Kris-Etherton, P., Harris, W. S., Howard, B., et al. (2006) · Circulation · doi:10.1161/circulationaha.106.176158 · Cited by 2,705
Polyphenols and disease risk in epidemiologic studies
Arts, I. C., & Hollman, P. C. (2005) · The American Journal of Clinical Nutrition · doi:10.1093/ajcn/81.1.317s · Cited by 1,916 · cited 4×
“7 (20-73), 15 dropouts (intention-totreat analysis) 10, Tea Packers Association, London, England Black tea (minimum of 6 cups/d) vs placebo (matched to water, milk, sugar, and caffeine intake); polyphenol and energy intake: NR Tea: 119.”
BackgroundInfluentialThe Effect of Fruit and Vegetable Intake on Risk for Coronary Heart Disease
Joshipura, K. J., Hu, F. B., Manson, J. E., Stampfer, M. J., Rimm, E. B., Speizer, F. E., Colditz, G., Ascherio, A., Rosner, B., Spiegelman, D., et al. (2001) · Annals of Internal Medicine · doi:10.7326/0003-4819-134-12-200106190-00010 · Cited by 1,396
Fruit and vegetable consumption and stroke: meta-analysis of cohort studies
He, F. J., Nowson, C. A., & MacGregor, G. A. (2006) · The Lancet · doi:10.1016/s0140-6736(06)68069-0 · Cited by 1,108 · cited 1×
“Tea Trade Health Research Association, Toronto, Ontario Black tea (5 cups/d) vs hot water; polyphenol and energy intake: NR Tea: 123 (5)/120 (5); Control: 127 (5)/123 (4) Tea: 73 (2)/71 (2); Control: 75 (3)/73 (2.”
Vascular effects of cocoa rich in flavan-3-ols
Heiss, C. (2003) · JAMA: The Journal of the American Medical Association · doi:10.1001/jama.290.8.1030 · Cited by 425 · cited 4×
“7 (20-73), 15 dropouts (intention-totreat analysis) 10, Tea Packers Association, London, England Black tea (minimum of 6 cups/d) vs placebo (matched to water, milk, sugar, and caffeine intake); polyphenol and energy intake: NR Tea: 119.”
BackgroundInfluentialMetabolic effects of green tea and of phases of weight loss
DIEPVENS, K., KOVACS, E., VOGELS, N., & WESTERTERPPLANTENGA, M. (2006) · Physiology & Behavior · doi:10.1016/j.physbeh.2005.09.013 · Cited by 113
Cited by
Del Rio, D., Rodriguez-Mateos, A., Spencer, J. P. E., Tognolini, M., Borges, G., & Crozier, A. (2013) · Antioxidants & Redox Signaling · doi:10.1089/ars.2012.4581 · Cited by 2,601
Hooper, L., Kroon, P. A., Rimm, E. B., Cohn, J. S., Harvey, I., Le Cornu, K. A., Ryder, J. J., Hall, W. L., & Cassidy, A. (2008) · The American Journal of Clinical Nutrition · doi:10.1093/ajcn/88.1.38 · Cited by 1,097
Polyphenols and Human Health: Prevention of Disease and Mechanisms of Action
Vauzour, D., Rodriguez-Mateos, A., Corona, G., Oruna-Concha, M. J., & Spencer, J. P. E. (2010) · Nutrients · doi:10.3390/nu2111106 · Cited by 855
Hooper, L., Kay, C., Abdelhamid, A., Kroon, P. A., Cohn, J. S., Rimm, E. B., & Cassidy, A. (2012) · The American Journal of Clinical Nutrition · doi:10.3945/ajcn.111.023457 · Cited by 610
Taubert, D., Roesen, R., Lehmann, C., Jung, N., & Schömig, E. (2007) · JAMA · doi:10.1001/jama.298.1.49 · Cited by 476
Self-citation
Metadata
- Authors
- Taubert, D.
- Venue
- Archives of Internal Medicine
- Publisher
- American Medical Association (AMA)
- Published
- 2007-04-09
- Volume
- 167
- Issue
- 7
- Pages
- 626
- ISSN
- 0003-9926
- OpenAlex
- W2111830496
- Cited by
- 279
- References
- 8
- FWCI
- 19.23
- Type
- journal article
- Language
- en
- Open access
- closed
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