Easter is going to turn up, whether you like it or not. Chocolate and hot cross buns are all around; in every shop and TV commercial. It’s enough to melt away your good intentions and, with this much pressure, bingeing feels almost inevitable. Of course, chocolate is available all year round. The trouble seems to come when there’s too much chocolate, as is the case at this time of year, which leads to too much temptation, eating too much in one go, then feeling miserable beca