4. You May Reduce Inflammation
Inflammation, which is the immune system's response to threats and stress, is a key factor in keeping you healthy, but it's also a component in a lot of health conditions, particularly when it won't go away. Persistent low-grade inflammation has been linked to heart conditions, rheumatoid arthritis, asthma, degenerative illnesses and various cancers, according to research published in 2018.
Enter green tea. A study in 2018 found that green tea has serious anti-inflammatory properties; in other words, it's capable of reducing inflammation levels, because it stimulates the body's anti-inflammatory responses and calms the immune system down. Coffee can also reduce inflammation levels, but its anti-inflammatory properties are lower than those of coffee. If you have chronic low-grade inflammation, you may find that green tea can help more than coffee does.
5. It May Be Better For Your Oral Health
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Switching from coffee to green tea may be an unexpected boost for your mouth. Coffee can heighten your risk for the gum infection periodontitis, according to a large study published in PLoS One in 2018, and also increases your risk of tooth staining. Green tea, however, seems to have benefits. A study published in Oral Chemistry in 2016 found that its anti-microbial properties might reduce the risk of certain harmful bacteria building up in the mouth over time.
Switching over from coffee to green tea may also help the bacterial population in your mouth in general. We all have an oral microbiome; it's a collection of bacteria and other living things in our mouths that can help or hinder its health. A study published in Cancer Epidemiology, Biomarkers & Prevention in 2018 found that tea drinkers had a more varied microbiome in their mouths than coffee drinkers, complete with higher amounts of helpful bacteria. That could help prevent infections and general oral issues. Tea might change your mouth for the better.
6. You'll Still Reap The Benefits Of Caffeine
Caffeine can have serious benefits, even in the small amounts you get from green tea. Scaling your caffeine intake down rather than going cold turkey means that you can still reap some of those benefits. "Caffeine is an effective stimulant to help improve physical performance and mental alertness," Yacoub tells Bustle. "In some studies, caffeine has also been shown to reduce type two diabetes." Harvard Medical School notes that in small doses caffeine has also been shown to help protect against neurodegenerative diseases like Alzheimer's. A little caffeine a day may prove to be helpful to your health in the long run.
If you're thinking of making the move from coffee to green tea, research indicates that you may be looking at improved health outcomes in the future. It's definitely worth considering swapping your espresso for a cup of sencha. Just don't pour boiling water over green tea leaves; it scorches them. Take it from a devotee.
Studies cited:
Bhupathiraju, S. N., Pan, A., Manson, J. E., Willett, W. C., Dam, R. M. V., & Hu, F. B. (2014). Changes in coffee intake and subsequent risk of type 2 diabetes: three large cohorts of US men and women. Diabetologia, 57(7), 1346–1354. doi: 10.1007/s00125-014-3235-7
Chacko, S. M., Thambi, P. T., Kuttan, R., & Nishigaki, I. (2010). Beneficial effects of green tea: a literature review. Chinese medicine, 5, 13. doi:10.1186/1749-8546-5-13
Fujiki, H., Sueoka, E., Watanabe, T., & Suganuma, M. (2015). Primary cancer prevention by green tea, and tertiary cancer prevention by the combination of green tea catechins and anticancer compounds. Journal of cancer prevention, 20(1), 1–4. doi:10.15430/JCP.2015.20.1.1
Han, K., Hwang, E., & Park, J. B. (2016). Association between Consumption of Coffee and the Prevalence of Periodontitis: The 2008-2010 Korea National Health and Nutrition Examination Survey. PloS one, 11(7), e0158845. doi:10.1371/journal.pone.0158845
Khurshid, Z., Zafar, M. S., Zohaib, S., Najeeb, S., & Naseem, M. (2016). Green Tea (Camellia Sinensis): Chemistry and Oral Health. The open dentistry journal, 10, 166–173. doi:10.2174/1874210601610010166
Pahwa, R., Jialal, I. (2019) Chronic Inflammation. StatPearls Treasure Island (FL).
https://www.ncbi.nlm.nih.gov/books/NBK493173
Paiva, C., Beserra, B., Reis, C., Dorea, J., Costa, T. D., & Amato, A. (2017). Consumption of coffee or caffeine and serum concentration of inflammatory markers: A systematic review. Critical Reviews in Food Science and Nutrition, 59(4), 652–663. doi: 10.1080/10408398.2017.1386159
Peters, B. A., Mccullough, M. L., Purdue, M. P., Freedman, N. D., Um, C. Y., Gapstur, S. M., … Ahn, J. (2018). Association of Coffee and Tea Intake with the Oral Microbiome: Results from a Large Cross-Sectional Study. Cancer Epidemiology Biomarkers & Prevention, 27(7), 814–821. doi: 10.1158/1055-9965.epi-18-0184
Reygaert W. C. (2018). Green Tea Catechins: Their Use in Treating and Preventing Infectious Diseases. BioMed research international, 2018, 9105261. doi:10.1155/2018/9105261
Sajadi-Ernazarova KR, Hamilton RJ. Caffeine, Withdrawal. (2019) In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2019 Jan-. Available from:
https://www.ncbi.nlm.nih.gov/books/NBK430790/
Yang, C., & Wang, H. (2016). Cancer Preventive Activities of Tea Catechins. Molecules, 21(12), 1679. doi: 10.3390/molecules21121679
Experts:
Dr. Edo Paz, M.D., cardiologist at K Health
Ramzi Yacoub, chief pharmacy officer at SingleCare