Sign In
  • ENG

5 reasons why diabetics should start drinking green tea

Sipping green tea can help prevent both type 1 and type 2 diabetes

Written by Bhakti Paun Sharma |Published : August 27, 2015 5:56 PM IST

Diabetes is one lifestyle disorder that needs proper attention and management to keep your blood sugar level in control. If not managed well, diabetes can lead to a lot of complications. Over the years, home remedies have proven to be effective in controlling and preventing diabetes. Green tea is one such ingredient that has a host of health benefits and one of them is prevention and control of diabetes. There are some more home remedies to keep diabetes in control. Here are 6 ways green tea can benefit diabetics:

  • In case of type 1 diabetes, the body is unable to produce insulin leading to high blood sugar levels. Green tea stimulates production of insulin, thereby preventing and controlling diabetes. Green tea prevents damage to the pancreatic beta cells [1] and helps in effective functioning of the pancreas which produces insulin. Epigallocatechin gallate (ECGC), an antioxidant present in green tea, delays the onset of type 1 diabetes too.
  • The polyphenols present in green tea have exhibited anti-diabetic properties [2] and help reduce oxidative stress, thereby boosting glucose tolerance. The caffeine present in green tea in small amounts is known to lower insulin sensitivity [5].

Read: Health benefits of green tea

  • The catechins in green tea have a beneficial effect against glucose and lipid metabolism disorders which are caused by type 2 diabetes. The catechins [1] also inhibit the digestive enzymes resulting in a decrease in glucose production from carbohydrates. This leads to lower glucose levels, thereby controlling diabetes.
  • Obesity is one of the leading causes of type 2 diabetes. Green tea boosts metabolism and shows anti-obesity activity[3]. Green tea lowers fatty acids and triglyceride levels thereby controlling obesity. This helps in preventing complications that may arise in obese diabetic patients.

Read: Green tea for weight loss and reduce risk of heart diseases.

Also Read

More News

  • Diabetes is a result of hyperglycaemia and glucose intolerance due to insulin deficiency or insulin resistance. Hyperglycemia may also lead to ailments like diabetic retinopathy by promoting oxidative stress. Green tea has a potential in preventing diabetic retinopathy [4] if consumed regularly in moderation.

Image source: Shutterstock

For more articles on diseases and conditions, visit our diseases and conditions section. For daily free health tips, sign up for our newsletter. For disease related queries, visit our forum.


  1. Huxley, R., Lee, C. M. Y., Barzi, F., Timmermeister, L., Czernichow, S., Perkovic, V., ... & Woodward, M. (2009). Coffee, decaffeinated coffee, and tea consumption in relation to incident type 2 diabetes mellitus: a systematic review with meta-analysis. Archives of internal medicine, 169(22), 2053-2063.
  2. Sabu, M. C., Smitha, K., & Kuttan, R. (2002). Anti-diabetic activity of green tea polyphenols and their role in reducing oxidative stress in experimental diabetes.Journal of ethnopharmacology, 83(1), 109-116.
  3. Hua, C. H., Liao, Y. L., Lin, S. C., Tsai, T. H., Huang, C. J., & Chou, P. (2011). Does supplementation with green tea extract improve insulin resistance in obese type 2 diabetics? A randomized, double-blind, and placebocontrolled clinical trial. Altern Med Rev, 16(2), 157-63.
  4. Kumar, B., Gupta, S. K., Nag, T. C., Srivastava, S., & Saxena, R. (2012). Green tea prevents hyperglycemia-induced retinal oxidative stress and inflammation in streptozotocin-induced diabetic rats. Ophthalmic research,47(2), 103-108.
  5. Tsuneki, H., Ishizuka, M., Terasawa, M., Wu, J. B., Sasaoka, T., & Kimura, I. (2004). Effect of green tea on blood glucose levels and serum proteomic patterns in diabetic (db/db) mice and on glucose metabolism in healthy humans. BMC pharmacology, 4(1), 18.

Total Wellness is now just a click away.

Follow us on