What can be done to improve knowledge of a good diet in the UK?

Just maybe the current economic climate will make people think more about what they eat. There is nothing better than fresh vegetables,eggs, chickens etc from the local farmer. Fast and convenience foods are high in fat and salt content and are costly in the long run. There were no fat or very few over weight people about when I was young. We all need to go back to eating good simple food then there would be no need to go on diets or supplements.