Even though coffee and tea fit well into a vegetarian diet, they do have side effects. Coffee raises blood pressure, cholesterol and risk of heart disease. Bowel problems from indigestion to diarrhea are also caused by coffee. On the other hand, teas have far fewer side effects and many health benefits.
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Cohen S. Gastric acid secretion and lower-esophageal-sphincter pressure in response to coffee and caffeine. N Engl J Med. 1975 Oct 30;293(18):897-9. http://www.nejm.org/doi/pdf/10.1056/NEJM197510302931803
Cohen S. Pathogenesis of coffee-induced gastrointestinal symptoms. N Engl J Med. 1980 Jul 17;303(3):122-4. http://www.nejm.org/doi/pdf/10.1056/NEJM198007173030302
Corti R, Binggeli C, Sudano I, et al. Coffee acutely increases sympathetic nerve activity and blood pressure independently of caffeine content: role of habitual versus nonhabitual drinking. Circulation. 2002 Dec 3;106(23):2935-40. http://circ.ahajournals.org/content/106/23/2935.full
Dulloo AG, Duret C, Rohrer D, et al. Efficacy of a green tea extract rich in catechin polyphenols and caffeine in increasing 24-h energy expenditure and fat oxidation in humans. Am J Clin Nutr. 1999 Dec;70(6):1040-5. http://ajcn.nutrition.org/content/70/6/1040.long
Elta GH. Comparison of coffee intake and coffee-induced symptoms in patients with duodenal ulcer, nonulcer dyspepsia, and normal controls. Am J Gastroenterol. 1990 Oct;85(10):1339-42. http://europepmc.org/abstract/MED/2220726
Hodgson JM, Burke V, Puddey IB. Acute effects of tea on fasting and postprandial vascular function and blood pressure in humans. J Hypertens. 2005 Jan;23(1):47-54. http://www.ncbi.nlm.nih.gov/pubmed/15643124
Inoue M, Tajima K, Mizutani M, et al. Regular consumption of green tea and the risk of breast cancer recurrence: follow-up study from the Hospital-based Epidemiologic Research Program at Aichi Cancer Center (HERPACC), Japan. Cancer Lett. 2001 Jun 26;167(2):175-8. http://www.cancerletters.info/article/S0304-3835(01)00486-4/abstract
James JE. Critical review of dietary caffeine and blood pressure: a relationship that should be taken more seriously. Psychosom Med. 2004 Jan-Feb;66(1):63-71. http://www.psychosomaticmedicine.org/content/66/1/63.short
Kurihara H, Fukami H, Toyoda Y, et al. Inhibitory effect of oolong tea on the oxidative state of low density lipoprotein (LDL). Biol Pharm Bull. 2003 May;26(5):739-42. https://www.jstage.jst.go.jp/article/bpb/26/5/26_5_739/_article
Lee YK, Bone ND, Strege AK, Shanafelt TD, Jelinek DF, Kay NE. VEGF receptor phosphorylation status and apoptosis is modulated by a green tea component, epigallocatechin-3-gallate (EGCG), in B-cell chronic lymphocytic leukemia. Blood. 2004 Aug 1;104(3):788-94. http://bloodjournal.hematologylibrary.org/content/104/3/788.long
Murase T, Nagasawa A, Suzuki J, Hase T, Tokimitsu I. Beneficial effects of tea catechins on diet-induced obesity: stimulation of lipid catabolism in the liver. Int J Obes Relat Metab Disord. 2002 Nov;26(11):1459-64. http://cat.inist.fr/?aModele=afficheN&cpsidt=14394359
Nakachi K, Eguchi H, Imai K. Can teatime increase one’s lifetime? Ageing Res Rev. 2003 Jan;2(1):1-10. http://www.sciencedirect.com/science/article/pii/S1568163702000478
Osada K, Takahashi M, Hoshina S, Nakamura M, Nakamura S, Sugano M. Tea catechins inhibit cholesterol oxidation accompanying oxidation of low density lipoprotein in vitro. Comp Biochem Physiol C Toxicol Pharmacol. 2001 Feb;128(2):153-64. http://www.sciencedirect.com/science/article/pii/S1532045600001927
Quinlan PT, Lane J, Moore KL, Aspen J, Rycroft JA, O’Brien DC. The acute physiological and mood effects of tea and coffee: the role of caffeine level. Pharmacol Biochem Behav. 2000 May;66(1):19-28. http://www.sciencedirect.com/science/article/pii/S0091305700001921
Shibata K, Moriyama M, Fukushima T, Kaetsu A, Miyazaki M, Une H. Green tea consumption and chronic atrophic gastritis: a cross-sectional study in a green tea production village. J Epidemiol. 2000 Sep;10(5):310-6. http://www.ncbi.nlm.nih.gov/pubmed/11059513
Urgert R, Katan MB. The cholesterol-raising factor from coffee beans. Annu Rev Nutr. 1997;17:305-24. http://www.annualreviews.org/doi/abs/10.1146/annurev.nutr.17.1.305?journalCode=nutr
Van Deventer G. Lower esophageal sphincter pressure, acid secretion, and blood gastrin after coffee consumption. Dig Dis Sci. 1992 Apr;37(4):558-69. http://link.springer.com/article/10.1007/BF01307580#page-1
Weinreb O, Mandel S, Amit T, Youdim MB. Neurological mechanisms of green tea polyphenols in Alzheimer’s and Parkinson’s diseases. J Nutr Biochem. 2004 Sep;15(9):506-16. http://www.sciencedirect.com/science/article/pii/S0955286304001184
Yang YC, Lu FH, Wu JS, Wu CH, Chang CJ. The protective effect of habitual tea consumption on hypertension. Arch Intern Med. 2004 Jul 26;164(14):1534-40. http://archinte.jamanetwork.com/article.aspx?articleid=217219
