LONDON — That dash of milk in the morning cuppa nullifies all the goodness of the tea. Studies have shown that drinking green or black tea can be good for you because both types contain an abundance of antioxidants called flavonoids. These improve bloodflow and help to prevent heart disease, and are also thought to protect against some cancers. But German researchers discovered that adding milk to a cup of black tea counteracts the beneficial effects. The study, published in the European Heart Journal, found that when black tea is drunk on its own, cardiovascular function improves. But it suggests that certain proteins in milk appear to negate the effect of catechins, the particular flavonoids in tea. The findings are bad news for manufacturers who have promoted the health properties of the beverage to Australians who add milk as a matter of routine. The study involved 16 healthy post-menopausal women who were given either 500ml of black tea, black tea with 10 per cent skimmed milk or with extra boiled water as a control. They drank it on three occasions but refrained from drinking tea for four weeks before and after the study. The drink […]