In the UK we are recommended to eat 5 portions of fruit and veg a day in order to keep us healthy, in Greece its 9, in France its 10 and in Japan its 13 portions of veg and 4 portions of fruit (17 in total!!) This probably contributes to why they have pretty much the longest life expectancy in the world. Even I have to admit that 17 seems like a pretty difficult feat to manage every day.
I’ve always believed that rather than concentrating on how many portions you eat it’s a bit easier and more enjoyable to try and eat a variety of different colored fruit and veg each day, week and month, work with what’s in season and mix it up as much as possible, that way you know that you’re getting the best variety of vitamins and you get the added enjoyment of a huge array of tastes! This is obviously much better for you than eating the same 5 portions of fruit & veg a day in any case.