Drinking Black Tea While Pregnant
Except for plain water, tea is the world's most widely-consumed drink. Although expectant mothers should avoid green tea, the National Institutes of Health consider moderate amounts of black tea safe for pregnant and nursing women. However, there are several situations where pregnant women should give up black tea entirely.
About Black Tea
Black tea is the most highly caffeinated of the teas prepared from the leaves of the tea plant, Camellia sinensis. It's also the most familiar tea to American consumers. In the United States, we drink black tea both hot and cold. Black tea is also the basis for Chai, a popular Indian drink spiced with cinnamon and cardamom.
- Black tea is the most highly caffeinated of the teas prepared from the leaves of the tea plant, Camellia sinensis.
- Black tea is also the basis for Chai, a popular Indian drink spiced with cinnamon and cardamom.
Black Tea and Caffeine
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Due to the long fermentation that's part of its processing, black tea contains the most caffeine of all the true teas, from 40 to 120 mg, depending on brand. Brigham Young University recommends that pregnant women limit their caffeine consumption to less than 300 mg daily, the equivalent of two or three 8-oz. cups of black tea. Other foods, including coffee, cola drinks and chocolate, contain caffeine as well, so take them into consideration when calculating your total daily intake.
- Due to the long fermentation that's part of its processing, black tea contains the most caffeine of all the true teas, from 40 to 120 mg, depending on brand.
Other Side Effects of Black Tea
The caffeine content isn't the only potential problem with black tea in pregnancy. Black tea is a natural diuretic and thus increases urine output, so if you have reached the stage in your pregnancy where you need to relieve yourself frequently, consider reducing your tea consumption. According to NIH, black tea can also cause sleep problems and raise your blood pressure. These are both common pregnancy complications, especially in the third trimester, so avoid drinking black tea if you develop these symptoms.
- The caffeine content isn't the only potential problem with black tea in pregnancy.
- These are both common pregnancy complications, especially in the third trimester, so avoid drinking black tea if you develop these symptoms.
Black Tea Risks
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If you're diabetic, be aware that black tea can increase your blood sugar levels and necessitate a change in your medication. Avoid black tea if you've developed pregnancy-related anemia, as black tea exacerbates anemia. And if your obstetrician is concerned about your calcium levels, you should stop drinking black tea, since caffeine depletes the body's calcium reserves.
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References
- National Institutes of Health; Black Tea; June 2011
- Brigham Young University Women's Services & Resources; Pregnancy; Rickelle Richards
- Ohio State University Extension; A Good Beginning; Alma Saddam, et al.; July 2008
- University of Florida: Tea-Off - Which Type of Tea Is Most Healthy?; Amy Hanna
- University of Maryland Medical Center; Green Tea; David Zieve, MD, et al.; September 2010
- Chin JM, Merves ML, Goldberger BA, Sampson-cone A, Cone EJ. Caffeine content of brewed teas. J Anal Toxicol. 2008;32(8):702-4. doi:10.1093/jat/32.8.702
- Yarmolinsky J, Gon G, Edwards P. Effect of tea on blood pressure for secondary prevention of cardiovascular disease: a systematic review and meta-analysis of randomized controlled trials. Nutr Rev. 2015;73(4):236-46. doi:10.1093/nutrit/nuv001
- Hartley L, Flowers N, Holmes J, et al. Green and black tea for the primary prevention of cardiovascular disease. Cochrane Database Syst Rev. 2013;(6):CD009934. doi:10.1002/14651858.CD009934.pub2
- Shen W, Xiao Y, Ying X, et al. Tea Consumption and Cognitive Impairment: A Cross-Sectional Study among Chinese Elderly. PLoS ONE. 2015;10(9):e0137781. doi:10.1371/journal.pone.0137781
- Noguchi-shinohara M, Yuki S, Dohmoto C, et al. Consumption of green tea, but not black tea or coffee, is associated with reduced risk of cognitive decline. PLoS ONE. 2014;9(5):e96013. doi:10.1371/journal.pone.0096013
- Feng L, Langsetmo L, Yaffe K, et al. No Effects of Black Tea on Cognitive Decline Among Older US Men: A Prospective Cohort Study. J Alzheimers Dis. 2018;65(1):99-105. doi:10.3233/JAD-180103
- Butacnum A, Chongsuwat R, Bumrungpert A. Black tea consumption improves postprandial glycemic control in normal and pre-diabetic subjects: a randomized, double-blind, placebo-controlled crossover study. Asia Pac J Clin Nutr. 2017;26(1):59-64. doi:10.6133/apjcn.112015.08
- Lin YW, Hu ZH, Wang X, et al. Tea consumption and prostate cancer: an updated meta-analysis. World J Surg Oncol. 2014;12:38. doi:10.1186/1477-7819-12-38
- Zhou Q, Li H, Zhou JG, Ma Y, Wu T, Ma H. Green tea, black tea consumption and risk of endometrial cancer: a systematic review and meta-analysis. Arch Gynecol Obstet. 2016;293(1):143-155. doi:10.1007/s00404-015-3811-1
- Yu F, Jin Z, Jiang H, et al. Tea consumption and the risk of five major cancers: a dose-response meta-analysis of prospective studies. BMC Cancer. 2014;14:197. doi:10.1186/1471-2407-14-197
- Nie XC, Dong DS, Bai Y, Xia P. Meta-analysis of black tea consumption and breast cancer risk: update 2013. Nutr Cancer. 2014;66(6):1009-14. doi:10.1080/01635581.2014.936947
- Sofuoglu SC, Kavcar P. An exposure and risk assessment for fluoride and trace metals in black tea. J Hazard Mater. 2008;158(2-3):392-400. doi:10.1016/j.jhazmat.2008.01.086
- Zioła-frankowska A, Frankowski M, Novotny K, Kanicky V. Comparison of the level of boron concentrations in black teas with fruit teas available on the Polish market. ScientificWorldJournal. 2014;2014:898425. doi:10.1155/2014/898425
- Karak T, Kutu FR, Nath JR, et al. Micronutrients (B, Co, Cu, Fe, Mn, Mo, and Zn) content in made tea (Camellia sinensis L.) and tea infusion with health prospect: A critical review. Crit Rev Food Sci Nutr. 2017;57(14):2996-3034. doi:10.1080/10408398.2015.1083534
Writer Bio
Marie Roper began writing in 1987, preparing sales and training materials for Citadel, Inc. and then newsletters for Fullerton Garden Center. A trained horticulturist, she was a garden designer and adult-education teacher for the USDA Graduate School in Washington, D.C. Roper has a Bachelor of Arts in history from the University of Maryland.