Drink tea and milk.

German researchers recently found that if milk is added to tea, the health care effect of tea will be greatly reduced.

For healthy people, blood vessels can relax themselves with the increase of blood flow, which is called blood flow-mediated vasodilation (FMD). In the experiment, the researchers measured the FMD level of forearm blood vessels before and after drinking tea.

They found that drinking black tea can significantly improve the FMD level of blood vessels compared with drinking boiled water, and milk will completely offset this effect of black tea.

It turns out that tea contains a compound called catechol, which can help people effectively prevent heart disease. Protein, called casein in milk, will destroy catechol, thus reducing the health care function of tea. At the same time, because milk will change the biological activity of some components in tea, adding milk to tea is also likely to reduce the anticancer effect of tea.

The research team believes that their findings help to explain the contradiction that although milk tea is widely consumed in Britain, the incidence of heart disease and stroke in Britain has not decreased.