Between Health Ally and Export Commodity: An Analysis of Consumers’ Perceptions of Tea and Its Health Benefits in Bujumbura City
Abstract
Tea (Camellia sinensis) serves as Burundi’s second-largest foreign exchange earner, supporting over 60,000 smallholder tea farmers. Despite the high quality of local high-altitude harvests, a significant disconnect persists between the beverage's intrinsic functional value and domestic consumption practices. This study evaluated consumer perceptions, functional knowledge, and preparation habits in Bujumbura to identify key public health literacy gaps. A quantitative cross-sectional survey (n = 300) was conducted across Ntahangwa, Mugere, and Mukaza districts using simple systematic random sampling via mobile-administered structured questionnaires.
Results reveal a striking health-behavior paradox: while 54.4% of respondents report drinking tea for health reasons, over 90% regularly add refined sugar, and 28.0% incorporate bovine milk. These culinary additions introduce high glycemic loads and introduce milk proteins that clinically attenuate flavonoid bioavailability and acute vascular efficacy. Awareness of specific prophylactic properties was minimal: only 1.0% recognized tea’s role in glycemic regulation, 0.3% were aware of cancer-preventive benefits, and 7.3% associated intake with sleep quality. Notably, despite 71.0% of participants attaining secondary or higher education, 97.0% could not identify any specific bioactive compounds.
Suboptimal preparation methods and low functional literacy severely diminish the health-promoting potential of Burundian tea. Targeted public health interventions, nutritional education focusing on reduced additives, and optimized brewing practices are urgently required to leverage local tea as an accessible tool in mitigating regional non-communicable diseases.
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Abiri, B., Amini, S., Hejazi, M., Hosseinpanah, F., Zarghi, A., Abbaspour, F., & Valizadeh, M. (2023). Tea’s anti‐obesity properties, cardiometabolic health‐promoting potentials, bioactive compounds, and adverse effects : A review focusing on white and green teas. Food Science & Nutrition, 11(10), 5818‑5836. https://doi.org/10.1002/fsn3.3595
Arts, M. J. T. J., Haenen, G. R. M. M., Wilms, L. C., Beetstra, S. A. J. N., Heijnen, C. G. M., Voss, H.-P., & Bast, A. (2002). Interactions between Flavonoids and Proteins : Effect on the Total Antioxidant Capacity. Journal of Agricultural and Food Chemistry, 50(5), 1184‑1187. https://doi.org/10.1021/jf010855a
Bitama, P., & Burny, P. (2020, septembre). Challenges in the Tea Industry in Burundi : Upgrading and Sustainability Policies. Agrarian Perspectives XXIX. https://orbi.uliege.be/handle/2268/251517
Bitama, P. C., Lebailly, P., Ndimanya, P., & Burny, P. (2020). Cash Crops and Food Security : A Case of Tea Farmers in Burundi. Asian Social Science, 16(7), 81. https://doi.org/10.5539/ass.v16n7p81
Cabrera, C., Artacho, R., & Giménez, R. (2006). Beneficial Effects of Green Tea—A Review. Journal of the American College of Nutrition, 25(2), 79‑99. https://doi.org/10.1080/07315724.2006.10719518
Chen, N., Jiao, Z., Xie, K., Liu, J., Yao, P., Luo, Y., Zhang, T., Cheng, K., & Zhao, C. (2024). Effects of protein on green tea quality in a milk-tea model during heat treatment : Antioxidant activity, foaming properties, and unbound small-molecule metabolome. Journal of Dairy Science, 107(12), 10462‑10480. https://doi.org/10.3168/jds.2024-25167
Cochran, W. G. (1977). Sampling techniques (3. ed). Wiley.
Czarniecka-Skubina, E., Korzeniowska-Ginter, R., Pielak, M., Sałek, P., Owczarek, T., & Kozak, A. (2022). Consumer Choices and Habits Related to Tea Consumption by Poles. Foods, 11(18). https://doi.org/10.3390/foods11182873
De, D., Ashraf, G. J., Sahu, R., & Ray, S. (2025). Impact of Altitude, Seasonal Variation, and Processing Parameters on Bioactive Compounds and Antioxidant Potential of Darjeeling Tea. INTERNATIONAL JOURNAL OF PLANT AND ENVIRONMENT, 11(01), 77‑92. https://doi.org/10.18811/ijpen.v11i01.09
Dhillon, B., Awasthi, T., Sodhi, N. S., Sogi, D. S., & Jaiswal, S. (2021). A comparative study to investigate the effects of addition of milk and sugar on total polyphenol, flavonoid, catechin and tannin contents of green and black teas consumed in India. Journal of Food Measurement and Characterization, 15(5), 4652‑4658. https://doi.org/10.1007/s11694-021-01036-z
Dufresne, C. J., & Farnworth, E. R. (2001). A review of latest research findings on the health promotion properties of tea. The Journal of Nutritional Biochemistry, 12(7), 404‑421. https://doi.org/10.1016/S0955-2863(01)00155-3
EATTA. (2025). Mombasa Tea Auction Report January 2025 (Sale 03)*. East African Tea Trade Association. https://www.scribd.com/document/871081333/Tea-Market-Report-3-2025
Flavel, M., Neoh, J., & Lim, K. F. (2023). Dose-Dependency of the Glycemic Response to Polyphenol-Rich Sugarcane Extract (PRSE). Biologics, 3(4), 308‑320. https://doi.org/10.3390/biologics3040016
Gardner, E. J., Ruxton, C. H. S., & Leeds, A. R. (2007). Black tea – helpful or harmful? A review of the evidence. European Journal of Clinical Nutrition, 61(1), 3‑18. https://doi.org/10.1038/sj.ejcn.1602489
Guo, J., Li, K., Lin, Y., & Liu, Y. (2023). Protective effects and molecular mechanisms of tea polyphenols on cardiovascular diseases. Frontiers in Nutrition, 10. https://doi.org/10.3389/fnut.2023.1202378
Harbowy, M. E., Balentine, D. A., Davies, A. P., & Cai, Y. (1997). Tea Chemistry. Critical Reviews in Plant Sciences, 16(5), 415‑480. https://doi.org/10.1080/07352689709701956
Khan, N., & Mukhtar, H. (2013). Tea and Health : Studies in Humans. Current Pharmaceutical Design, 19(34), 6141‑6147.
KoboToolbox. (s. d.). KoboToolbox. Consulté 2 mars 2026, à l’adresse https://www.kobotoolbox.org/
Kris-Etherton, P. M., & Keen, C. L. (2002). Evidence that the antioxidant flavonoids in tea and cocoa are beneficial for cardiovascular health: Current Opinion in Lipidology, 13(1), 41‑49. https://doi.org/10.1097/00041433-200202000-00007
Kumar, P., Chaudhary, S., Sood, S., Mahant, S., Pundir, S., Kalia, P., & Kumar, R. (2025). Tea beyond the cup : A comprehensive review of Camellia sinensis (L.) O. Kuntze. Clinical Phytoscience, 11(1), 23. https://doi.org/10.1186/s40816-025-00413-1
Leung, L. K., Su, Y., Zhang, Z., Chen, Z.-Y., Huang, Y., & Chen, R. (2001). Theaflavins in Black Tea and Catechins in Green Tea Are Equally Effective Antioxidants. The Journal of Nutrition, 131(9), 2248‑2251. https://doi.org/10.1093/jn/131.9.2248
Lorenz, M., Jochmann, N., von Krosigk, A., Martus, P., Baumann, G., Stangl, K., & Stangl, V. (2007). Addition of milk prevents vascular protective effects of tea. European Heart Journal, 28(2), 219‑223. https://doi.org/10.1093/eurheartj/ehl442
Mao, X., Gu, C., Chen, D., Yu, B., & He, J. (2017). Oxidative stress-induced diseases and tea polyphenols. Oncotarget, 8(46), 81649‑81661. https://doi.org/10.18632/oncotarget.20887
Nikora, R. D., & McFarlane, D. R. (2010). Closing the Gap in a Generation : Health Equity Through Action on the Social Determinants of Health. Journal of Health Politics, Policy and Law, 35(3), 438‑442. https://doi.org/10.1215/03616878-2010-010
Otemuyiwa, I. O., Williams, M. F., & Adewusi, S. A. (2017). Antioxidant activity of health tea infusions and effect of sugar and milk on in-vitro availability of phenolics in tea, coffee and cocoa drinks. Nutrition & Food Science, 47(4), 458‑468. https://doi.org/10.1108/NFS-08-2016-0134
Owen, G. N., Parnell, H., De Bruin, E. A., & Rycroft, J. A. (2008). The combined effects of L-theanine and caffeine on cognitive performance and mood. Nutritional Neuroscience, 11(4), 193‑198. https://doi.org/10.1179/147683008X301513
Pampel, F. C., Krueger, P. M., & Denney, J. T. (2010). Socioeconomic Disparities in Health Behaviors. Annual Review of Sociology, 36, 349‑370. https://doi.org/10.1146/annurev.soc.012809.102529
Radeva-Ilieva, M., Stoeva, S., Hvarchanova, N., & Georgiev, K. D. (2025). Green Tea : Current Knowledge and Issues. Foods, 14(5). https://doi.org/10.3390/foods14050745
Stangl, V., Lorenz, M., & Stangl, K. (2006). The role of tea and tea flavonoids in cardiovascular health. Molecular Nutrition & Food Research, 50(2), 218‑228. https://doi.org/10.1002/mnfr.200500118
Stoeva, S., Hvarchanova, N., Georgiev, K. D., & Radeva-Ilieva, M. (2025). Green Tea : Antioxidant vs. Pro-Oxidant Activity. Beverages, 11(3). https://doi.org/10.3390/beverages11030064
Tanaka, T., & Kouno, I. (2003). Oxidation of Tea Catechins : Chemical Structures and Reaction Mechanism. Food Science and Technology Research, 9(2), 128‑133. https://doi.org/10.3136/fstr.9.128
Truong, V.-L., & Jeong, W.-S. (2021). Cellular Defensive Mechanisms of Tea Polyphenols : Structure-Activity Relationship. International Journal of Molecular Sciences, 22(17). https://doi.org/10.3390/ijms22179109
WHO. (2023). Country Desease Outlook Burundi. World Health Organization, African Region.
Worsley, A. (2002). Nutrition knowledge and food consumption : Can nutrition knowledge change food behaviour? Asia Pacific Journal of Clinical Nutrition, 11(s3), S579‑S585. https://doi.org/10.1046/j.1440-6047.11.supp3.7.x
Yang, C. S., & Wang, H. (2016). Cancer Preventive Activities of Tea Catechins. Molecules, 21(12). https://doi.org/10.3390/molecules21121679
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