Avocados
Avocados are an excellent source of monounsaturated fat and vitamin E. Avocados have more soluble fibre than other fruit and contain a number of useful minerals such as iron, copper and potassium and are a good source of the B vitamin, folate.
In Season
All year round
How to choose
Go for an unblemished skin, and flesh that gives slightly if squeezed gently (though it shouldn't actually be soft). If you buy hard ones you can ripen them quickly by putting them in a brown paper bag with a banana (keep out of the fridge).