A fat tax could be the answer to Britain’s obesity time-bomb, David Cameron suggested yesterday. The Prime Minister revealed he was looking at following Denmark, which has imposed a surcharge on foods with more than 2.3 per cent saturated fat. The tax – being considered at a time of rampant food price inflation – could put 25p on the price of a pack of butter and 8p on a packet of crisps. Although no details have been worked out, the levy would target products such as milk, cheese, pizza, meat, oil and processed food. Mr Cameron said drastic action was needed because by 2050 more than half of the population is predicted to be obese – so fat their health is in danger.