This week

COCA-COLA has cut sugar content by up to 30 per cent in Fanta, Sprite and Dr Pepper, adding sweeteners instead. Some 14 percent of UK teens have fizzy drinks daily and one in four eat sweets or chocolates.

E-cigs can cause bladder cancer, says a study which found 92 per cent of users tested positive for two of the five compounds linked to the disease. The research, in

Nashville, also found nicotine can block DNA repair, increasing cancer risk. Magnesium-rich food like dark chocolate, avocado and banana can curb high blood pressure, Hertfordshire University found.

One in five gastric bypass patients develop alcoholism, say researchers in Pittsburgh. The procedure lifts alcohol levels in the blood, so drink is more addictive.