Green tea can sensitize cells so that they are able to metabolize sugar better, improving diabetes symptoms. It also works great for diabetics because it enhances the metabolic system function. And green tea polyphenols regulate glucose levels in the body, cutting diabetes risk.
One Korean study has shown that drinking 6 or more cups of green tea can cut the risk of type 2 diabetes by as much as 33 percent (10). But do consult your doctor regarding the dosage – as 6 cups of green tea a day may not be healthy.
How green tea lowers blood sugar levels is an interesting story. The consumption of starch leads to its breaking down into simple sugars by amylase (an enzyme) so that it can be absorbed into the bloodstream. Green tea inhibits amylase activity – this helps reduce the amount of sugar absorbed into the bloodstream (11).