Eggs are the perfect food. They contain absolutely everything needed to sustain life in one convenient package. All the protein, minerals etc. And cheap, easy to cook and versatile. 

Throughout the research for this website I have come across 'superfoods' and they are all the old basics - not expensive, easy to prepare and tasty. Here they are - include an abundance of these and you'll not go far wrong.

        carrots

        nuts

        cheese

        green or red vegetables

        brightly coloured fruit

        chicken

        oil fish

        lean meat

        water / mineral water