[open-source-ux]

The best book I've read on this topic is by a British Botanist and TV presenter called James Wong. His book 'How to eat better' lists commonly available fruit and vegetables at your local supermarket and tells you which are the best varieties to pick and why (no surprise that the greener or redder the fruit or vegetable, the more nutrionally rich it is).

You won't find obscure ingredients, or advice on micromanaging your diet (which takes out all the pleasure of eating), but you will find simple advice you can put immediately into practice.