Daily consumption of green tea may reduce the risk of T2 diabetes. G.J. van Woudenbergh of InterAct Consortium and colleagues found the possible protective effect after meta-analysis of data from 340,234 participants; those who drank four cups of tea per day or more were 16% less likely to be diagnosed with type 2 diabetes, compared with non-drinkers.

It was also found that those drinking less than 4 cups of tea per day was associated with 7 percent reduced risk of type 2 diabetes mellitus, compared with those who did not drink any.

The researchers concluded, "A linear inverse association was observed between tea consumption and incidence of type 2 diabetes. People who drink at least 4 cups of tea per day may have a 16% lower risk of developing type 2 diabetes than non tea drinkers."