Is Green Tea Good For Diabetes? Green Tea Benefits 2024

Sarah Muoio

Updated on - Written by
Medically reviewed by Melissa Mitri, MS, RD

is green tea good for diabetes
Green tea is a soothing drink with diabetes control benefits.

In a world where chronic diseases like diabetes are rising, you may be seeking natural remedies to complement your treatment plans. Green tea is a natural drink that has gained significant attention recently. 

With its rich history and health-promoting properties, green tea has been hailed as a potential ally in managing diabetes when added to a healthy meal plan

Still, the question remains: is green tea good for diabetes? This article will delve into the intricate relationship between green tea and diabetes. We’ll look at the scientific evidence that underlies its potential benefits, from its powerful antioxidants that aid in reducing inflammation to its role in managing blood sugar levels and improving insulin sensitivity. 

Grab a cup of green tea, sit back, and enjoy a deep dive into the effects of green tea on diabetes management. 

Is Green Tea Good For Diabetes?

Yes. The effects of green tea have shown promise in diabetes management. Its active compounds, called green tea catechins, may enhance insulin sensitivity and support healthy blood sugar levels. Studies also show that habitual tea consumption may help enhance weight loss, improve blood pressure, and reduce other heart disease complications. While consuming green tea and green tea extract can support your diabetes control efforts, always consult your doctor for personalized advice.

How Does Green Tea Affect Diabetes?

Derived from the leaves of Camellia sinensis, green tea has gained significant attention for its potential impact on diabetes management. Numerous studies have explored the relationship between green tea consumption and its effects on blood sugar control,[1] insulin sensitivity, and other health factors[2] associated with diabetes. 

A critical way that green tea may influence diabetes is through its rich content of polyphenols, particularly catechins.[3] Polyphenols are beneficial anti-inflammatory plant compounds.

These potent antioxidants have been shown to have anti-inflammatory properties, which can help decrease the chronic low-grade inflammation[4] typically observed in people with diabetes. Green tea may improve insulin sensitivity and promote better glucose control by reducing inflammation. 

Furthermore, the catechins in green tea may also inhibit certain enzymes that break down complex carbohydrates into simple sugars. This can slow down glucose absorption into the bloodstream, preventing rapid spikes and maintaining healthy blood sugar levels after meals. 

Studies have shown that regular green team consumption is associated with improved glycemic control,[2] including decreased fasting blood sugar levels and hemoglobin A1c levels–a long-term marker of glucose control. 

Green tea may also positively impact cardiovascular health, as it has been linked to improved lipid profiles[5] and blood pressure regulation,[6] critical factors for individuals with diabetes at higher risk of cardiovascular complications.  

Health Benefits Of Green Tea For Diabetes

Green tea offers several enticing health benefits for individuals with diabetes, including:

Improved Insulin Sensitivity And Blood Sugar Regulation

Green tea polyphenols, such as catechins,  have been shown to improve insulin sensitivity. Therefore, green tea can help regulate blood sugar levels more effectively by improving the body’s response to insulin.[1] It may also help regulate blood sugar levels by inhibiting certain enzymes involved in carbohydrate digestion. 

Reduced Inflammation

Chronic inflammation is typically associated with diabetes. The antioxidants in green tea, particularly epigallocatechin gallate, possess anti-inflammatory properties[7] that can help lessen inflammation, resulting in lower blood sugar levels and overall glucose control. 

Cardiovascular Health Support

People with diabetes are at a higher risk of cardiovascular complications. Green tea’s antioxidant properties have been linked to improved lipid profiles,[8] including lower total and LDL cholesterol levels. It may also contribute to better blood pressure regulation, reducing the risk of cardiovascular disease. 

Weight Management Aid

Maintaining a healthy weight and eating the right foods for diabetes is crucial for managing diabetes. Green tea has been associated with increased fat burning[9] and a modest boost in metabolism, potentially aiding in weight management efforts. 

Antioxidant Protection

The high concentration of antioxidants in green tea can help protect against oxidative stress,[10] which is heightened in diabetes. By neutralizing harmful free radicals, compounds that can cause oxidative stress, green tea may help reduce the risk of complications associated with diabetes.

How Much Green Tea Should People With Diabetes Drink?

The optimal amount of green tea consumption for people with diabetes can vary based on individual factors and health considerations. While green tea has shown potential health benefits for diabetes management, moderation is key. 

It is generally recommended to consume two to three cups of green tea per day, spread throughout the day, to avoid excessive caffeine intake. However, consulting with a healthcare professional is crucial to determine the most appropriate amount for your specific condition. 

Additionally, it’s essential to consider the overall dietary and lifestyle factors in managing diabetes. Green tea should be regarded as part of a comprehensive approach that includes a balanced diet of healthy foods, regular physical activity, and adherence to prescribed medications and treatments. 

Monitoring blood sugar levels and observing personal reactions or sensitivities to green tea can also help guide the appropriate consumption amount. 

The Best Time To Drink Green Tea For Diabetes

When it comes to the best time to drink green tea for diabetes, spreading your consumption throughout the day is generally recommended. Enjoying a cup of green tea with meals or between meals can help regulate blood sugar levels and prevent spikes. 

Drinking green tea in the morning can energize your day, while having a cup in the evening may promote relaxation and aid digestion. However, individual responses to green tea may vary, and monitoring how your body reacts to the beverage at different times of the day is essential. 

A healthcare professional can provide personalized guidance on daily green tea consumption to complement your diabetes management plan.

Are There Any Downsides?

While green tea can offer potential benefits for people with diabetes, there are a few considerations and potential downsides to be aware of:

  • Green tea contains caffeine, which may affect individuals differently. Some people with diabetes may be more sensitive to caffeine and can experience increased heart rate, jitteriness, or sleep disturbances.[11] If you are sensitive to caffeine, monitoring your body’s response and considering limiting your intake or opting for decaffeinated green tea is important. 
  • Green tea contains tannins, which can inhibit iron absorption from plant-based sources. Since individuals with diabetes are already at risk of iron deficiency, it’s essential to be mindful of this potential interference. If you consume green tea with meals, consider pairing it with iron-rich foods or discussing iron supplements with a healthcare professional. 
  • It’s crucial to consult with your healthcare provider to ensure that green tea consumption does not interfere with the effectiveness or safety of your medications, especially if you are taking medications for diabetes or other health conditions. Green tea may interact with certain medications, including blood thinners, anticoagulants, and certain antihypertensive drugs. 

Other Healthy Teas For People With Diabetes

While green tea has garnered attention for its potential benefits, many other tantalizing teas hold promise for people with diabetes. 

Here are some other healthy teas to try if you are seeking a holistic approach to diabetes care:

  • Black tea. 
  • Chamomile tea. 
  • Cinnamon tea. 
  • Hibiscus tea. 
  • Rooibos tea. 
  • Oolong tea. 
  • White tea. 

Conclusion

In diabetes management, green tea is one of the best tea types. Green tea’s potential to improve insulin sensitivity, regulate blood sugar levels, and lessen inflammation sparks hope for individuals with diabetes. However, it’s crucial to remember that green tea should complement an overall healthy diet and lifestyle and not replace medical advice or prescribed treatments. 

As research continues to unfold on holistic diabetes management, it’s a reminder that the path to effective diabetes management is a tapestry woven with individualized care, professional guidance, and a holistic approach to well-being. 

So, as you savor the warm embrace of a cup of green tea, let it remind you of the power of nature’s remedies and the importance of a comprehensive approach to thriving with diabetes.

Frequently Asked Questions

Does drinking green tea help manage blood sugar levels?

Yes, drinking green tea may help manage blood sugar levels. 

Can green tea decrease blood sugar?

Yes. Green tea has been shown to potentially decrease blood sugar levels due to its beneficial compounds, such as catechins. They may do this by enhancing insulin sensitivity and regulating glucose metabolism. 

Is green tea good for type 2 diabetes? 

Green tea may offer benefits for individuals with type 2 diabetes. However, it is important to note that green tea alone is not a substitute for proper diabetes management, which should include a balanced diet, regular exercise, and prescribed medication. 

Who should not drink green tea?

Individuals sensitive to caffeine or with caffeine-related health issues should exercise caution or avoid drinking green tea. Additionally, those taking certain medications that may interact with green tea should consult their healthcare provider before incorporating it into their routine.

Can people with diabetes drink tea every day?

People with diabetes can generally drink green tea daily, including green tea, as part of a balanced and healthy lifestyle. 

Is Lipton green tea good for diabetes?

Lipton green tea is a quality tea brand for diabetes. 


+ 11 sources

Health Canal avoids using tertiary references. We have strict sourcing guidelines and rely on peer-reviewed studies, academic researches from medical associations and institutions. To ensure the accuracy of articles in Health Canal, you can read more about the editorial process here

  1. Liu, K., Zhou, R., Wang, B., Chen, K., Shi, L., Zhu, J. and Mi, M. (2013). Effect of green tea on glucose control and insulin sensitivity: a meta-analysis of 17 randomized controlled trials. [online] 98(2), pp.340–348. doi:https://doi.org/10.3945/ajcn.112.052746.
  2. Kim, H. and Kim, J. (2013). The Effects of Green Tea on Obesity and Type 2 Diabetes. [online] 37(3), pp.173–173. doi:https://doi.org/10.4093/dmj.2013.37.3.173.
  3. The Nutrition Source. (2019). Tea. [online] Available at: https://www.hsph.harvard.edu/nutritionsource/food-features/tea/
  4. Wen, L., Wu, D., Tan, X., Zhong, M., Xing, J., Li, W., Li, D. and Cao, F. (2022). The Role of Catechins in Regulating Diabetes: An Update Review. [online] 14(21), pp.4681–4681. doi:https://doi.org/10.3390/nu14214681.
  5. Omid Asbaghi, Faezeh Fouladvand, Khadijeh Mirzaei, Damoon Ashtary-Larky, Razieh Choghakhori and Amir Abbasnezhad (2020). Effect of green tea extract on lipid profile in patients with type 2 diabetes mellitus: A systematic review and meta-analysis. [online] 14(4), pp.293–301. doi:https://doi.org/10.1016/j.dsx.2020.03.018.
  6. Xu, R., Yang, K., Ding, J. and Chen, G. (2020). Effect of green tea supplementation on blood pressure. [online] 99(6), pp.e19047–e19047. doi:https://doi.org/10.1097/md.0000000000019047.
  7. Seyed Ahmad Hosseini, Alipour, M., Mehrnoosh Zakerkish, Bahman Cheraghian and Pegah Ghandil (2020). Effects of epigallocatechin gallate on total antioxidant capacity, biomarkers of systemic low-grade inflammation and metabolic risk factors in patients with type 2 diabetes mellitus: the role of FTO-rs9939609 polymorphism. [online] doi:https://doi.org/10.5114/aoms.2020.95903.
  8. Xu, R., Yang, K., Li, S., Dai, M. and Chen, G. (2020). Effect of green tea consumption on blood lipids: a systematic review and meta-analysis of randomized controlled trials. [online] 19(1). doi:https://doi.org/10.1186/s12937-020-00557-5.
  9. Dylan O’Neill Rothenberg, Zhou, C. and Zhang, L. (2018). A Review on the Weight-Loss Effects of Oxidized Tea Polyphenols. [online] 23(5), pp.1176–1176. doi:https://doi.org/10.3390/molecules23051176.
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  11. Chaudhary, N.S., Grandner, M.A., Jackson, N. and Chakravorty, S. (2016). Caffeine consumption, insomnia, and sleep duration: Results from a nationally representative sample. [online] 32(11-12), pp.1193–1199. doi:https://doi.org/10.1016/j.nut.2016.04.005.
Sarah Muoio

Medically reviewed by:

Melissa Mitri

Sarah Muoio is a writer based in Milford, CT. Aside from writing, she is passionate about childhood illness advocacy, surfing, and philanthropy. She’ll never pass up an opportunity to enjoy live music with family and friends.

Medically reviewed by:

Melissa Mitri

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