Telegraph
Checking the NHS website for confirmation, I find that while one tomato counts as a portion, it takes two handfuls of blueberries to make another helping, and I’d need to put away a whole dessert bowl of lettuce.
I could then make up my total of 10 portions today by eating 14 button mushrooms, four heaped tablespoons of curly kale, 16 medium okra, eight spring onions, a large parsnip, 20 raspberries and one peach.
The link below is not very informative:
NHS Portions - PDF
For instance it lists 'one orange' as a portion. Is that a 70g orange or a 200g orange? If it is a '70g' orange, will the 200g orange be equivalent to about three 'portions'?
It would be more informative if the 'portions' were expressed as an approximate (minimum) weight.
How do other countries' health advisory bodies deal with this?