The percentage of overweight people in UK and Australia is now right up with Americans percentage wise. When fat was reduced in the diet, the average gycaemic index of the meal was increased, and this is the major reason people have gained weight all round the western world. Cut the g.i. of meals and weight falls.
A lot of tradesmen arrive in U.K. from other parts of the world, and they frequently comment on how little work UK builders get done each week. There seems to be a culture in London to spend very long lunch hours.