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Green Tea May Help Manage Blood Sugar Levels

Green tea is the second most commonly consumed drink in the world, after water, and it is packed with catechins that have a wide range of health benefits. Recently, a study was released suggesting that drinking green tea may help manage blood sugar levels by lowering fasting glucose concentrations and blood concentrations of hemoglobin A1c (HbA1c).

Catechins are a type of antioxidant. Green tea contains four main catechins: epigallocatechin gallate (EGCG), epigallocatechin (EGC), epicatechin gallate (ECG), and epicatechin (EC).

The researchers analyzed data from 17 randomized controlled trials, nine of which included green tea extracts in capsules containing 200 to 800 mg of EGCG. The other eight used beverages containing 364-582 mg of combined catechins. In all, the catechin doses ranged from 208 to 1207 mg.

The researchers determined that drinking green tea was associated with a 0.09 nmol/L reduction in fasting glucose levels and a 0.3% reduction in HbA1c levels.

Researchers from Chongqing Medical Nutrition Research Center in China conducted the study. It was published in the August 2013 issue of The American Journal of Clinical Nutrition.

Green tea has been linked in previous studies with numerous health benefits, including promoting weight loss, improving heart and oral health, aiding in digestion and decreasing the risk of neurodegenerative diseases.

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